This build log was produced by rultor.com for yegor256/futex#32

+ set -e
+ set -o pipefail
++ dirname ./run.sh
+ cd .
+ echo 2324
+ echo '2.0-SNAPSHOT BUILD'
2.0-SNAPSHOT BUILD
+ date
Mon Feb 17 19:28:44 UTC 2025
+ uptime
 19:28:44 up 11 min,  0 users,  load average: 0.00, 0.07, 0.06
+ ff=default
+ image=yegor256/rultor-image
+ rebase=false
+ head_branch=master
+ pull_title='Update dependency rdoc to v6 [SECURITY]'
+ author=yegor256
+ directory=
+ head=git@github.com:yegor256/futex.git
+ pull_id=32
+ fork=git@github.com:yegor256/futex.git
+ fork_branch=renovate/rubygems-rdoc-vulnerability
+ squash=false
+ vars=('--env=head=git@github.com:yegor256/futex.git' '--env=pull_id=32' '--env=fork=git@github.com:yegor256/futex.git' '--env=fork_branch=renovate/rubygems-rdoc-vulnerability' '--env=head_branch=master' '--env=pull_title=Update dependency rdoc to v6 [SECURITY]' '--env=author=yegor256' '--env=scripts=( '\''export '\''\'\'''\''head=git@github.com:yegor256/futex.git'\''\'\'''\'''\'' '\'';'\'' '\''export '\''\'\'''\''pull_id=32'\''\'\'''\'''\'' '\'';'\'' '\''export '\''\'\'''\''fork=git@github.com:yegor256/futex.git'\''\'\'''\'''\'' '\'';'\'' '\''export '\''\'\'''\''fork_branch=renovate/rubygems-rdoc-vulnerability'\''\'\'''\'''\'' '\'';'\'' '\''export '\''\'\'''\''head_branch=master'\''\'\'''\'''\'' '\'';'\'' '\''export '\''\'\'''\''pull_title=Update dependency rdoc to v6 [SECURITY]'\''\'\'''\'''\'' '\'';'\'' '\''export '\''\'\'''\''author=yegor256'\''\'\'''\'''\'' '\'';'\'' '\''export GEM_HOME=~/.ruby'\'' '\'';'\'' '\''export GEM_PATH=$GEM_HOME:$GEM_PATH'\'' '\'';'\'' '\''bundle install --no-color'\'' '\'';'\'' '\''bundle exec rake'\'' '\'';'\'' )')
+ scripts=('export '\''head=git@github.com:yegor256/futex.git'\''' ';' 'export '\''pull_id=32'\''' ';' 'export '\''fork=git@github.com:yegor256/futex.git'\''' ';' 'export '\''fork_branch=renovate/rubygems-rdoc-vulnerability'\''' ';' 'export '\''head_branch=master'\''' ';' 'export '\''pull_title=Update dependency rdoc to v6 [SECURITY]'\''' ';' 'export '\''author=yegor256'\''' ';' 'export GEM_HOME=~/.ruby' ';' 'export GEM_PATH=$GEM_HOME:$GEM_PATH' ';' 'bundle install --no-color' ';' 'bundle exec rake' ';')
+ container=yegor256_futex_32
+ as_root=false
+ hostname
ip-172-31-21-159
+ pwd
/tmp/rultor-Djpa
+ git --version
git version 2.34.1
+ docker --version
Docker version 25.0.3, build 4debf41
+ mkdir -p /home/ubuntu/.ssh
+ echo -e 'Host github.com\n\tStrictHostKeyChecking no\n'
+ chmod 600 /home/ubuntu/.ssh/config
+ git clone git@github.com:yegor256/futex.git repo
Cloning into 'repo'...
Warning: Permanently added 'github.com' (ED25519) to the list of known hosts.
+ cd repo
+ git config user.email me@rultor.com
+ git config user.name rultor
+ '[' -z 'export '\''head=git@github.com:yegor256/futex.git'\''' ']'
+ cd ..
+ cat
+ '[' false = true ']'
+ cat
+ chmod a+x entry.sh
+ cat
+ echo 'export '\''head=git@github.com:yegor256/futex.git'\''' ';' 'export '\''pull_id=32'\''' ';' 'export '\''fork=git@github.com:yegor256/futex.git'\''' ';' 'export '\''fork_branch=renovate/rubygems-rdoc-vulnerability'\''' ';' 'export '\''head_branch=master'\''' ';' 'export '\''pull_title=Update dependency rdoc to v6 [SECURITY]'\''' ';' 'export '\''author=yegor256'\''' ';' 'export GEM_HOME=~/.ruby' ';' 'export GEM_PATH=$GEM_HOME:$GEM_PATH' ';' 'bundle install --no-color' ';' 'bundle exec rake' ';'
+ sensitive=()
+ rm -rf .gnupg
+ set -ex
+ cd repo
+ git remote add fork git@github.com:yegor256/futex.git
+ git remote update
Fetching origin
Fetching fork
From github.com:yegor256/futex
 * [new branch]      master                -> fork/master
 * [new branch]      renovate/minitest-5.x -> fork/renovate/minitest-5.x
 * [new branch]      renovate/rubygems-rdoc-vulnerability -> fork/renovate/rubygems-rdoc-vulnerability
+ args=
+ '[' default == default ']'
+ args=' --ff'
+ '[' default == no ']'
+ '[' default == only ']'
+ export BRANCH=__rultor
+ BRANCH=__rultor
++ wc -l
++ git show-branch __rultor
+ '[' 0 -gt 0 ']'
+ git status
On branch master
Your branch is up to date with 'origin/master'.

nothing to commit, working tree clean
+ git checkout -B __rultor fork/renovate/rubygems-rdoc-vulnerability
Switched to a new branch '__rultor'
Branch '__rultor' set up to track remote branch 'renovate/rubygems-rdoc-vulnerability' from 'fork'.
+ git checkout -B master origin/master
Switched to and reset branch 'master'
Branch 'master' set up to track remote branch 'master' from 'origin'.
Your branch is up to date with 'origin/master'.
+ '[' false == true ']'
+ '[' false == true ']'
+ git merge --ff __rultor
Auto-merging Gemfile
Merge made by the 'ort' strategy.
 Gemfile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
+ docker_when_possible
+ true
++ tail -n 1
++ sed 's/ /\n/g'
++ uptime
+ load=0.07
++ echo 0.07 '>' 30
++ bc
+ '[' 0 -eq 1 ']'
+ echo 'load average is 0.07, low enough to run a new Docker container'
load average is 0.07, low enough to run a new Docker container
+ break
+ cd ..
+ '[' -n '' ']'
+ use_image=yegor256/rultor-image
+ docker pull yegor256/rultor-image
Using default tag: latest
latest: Pulling from yegor256/rultor-image
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Digest: sha256:1b8a5a6ac8781ae98fffa1d73f3a080693c0758f361ee19b0d59f1d55e927280
Status: Downloaded newer image for yegor256/rultor-image:latest
docker.io/yegor256/rultor-image:latest
+ docker ps --filter=status=exited
+ grep --quiet '\syegor256_futex_32\s*$'
+ ls -al .
total 56
drwx------  3 ubuntu ubuntu 4096 Feb 17 19:28 .
drwxrwxrwt 12 root   root   4096 Feb 17 19:28 ..
-rwxrwxr-x  1 ubuntu ubuntu 2089 Feb 17 19:28 end.sh
-rwxrwxr-x  1 ubuntu ubuntu  490 Feb 17 19:28 entry.sh
-rw-rw-r--  1 ubuntu ubuntu    5 Feb 17 19:28 pid
drwxrwxr-x  5 ubuntu ubuntu 4096 Feb 17 19:28 repo
-rw-rw-r--  1 ubuntu ubuntu   81 Feb 17 19:28 rubygems.yml
-rwxrwxr-x  1 ubuntu ubuntu 9269 Feb 17 19:28 run.sh
-rw-rw-r--  1 ubuntu ubuntu  591 Feb 17 19:28 script.sh
-rw-rw-r--  1 ubuntu ubuntu 9219 Feb 17 19:32 stdout
++ pwd
++ pwd
+ docker run -t --rm -v /tmp/rultor-Djpa:/main --env=head=git@github.com:yegor256/futex.git --env=pull_id=32 --env=fork=git@github.com:yegor256/futex.git --env=fork_branch=renovate/rubygems-rdoc-vulnerability --env=head_branch=master '--env=pull_title=Update dependency rdoc to v6 [SECURITY]' --env=author=yegor256 '--env=scripts=( '\''export '\''\'\'''\''head=git@github.com:yegor256/futex.git'\''\'\'''\'''\'' '\'';'\'' '\''export '\''\'\'''\''pull_id=32'\''\'\'''\'''\'' '\'';'\'' '\''export '\''\'\'''\''fork=git@github.com:yegor256/futex.git'\''\'\'''\'''\'' '\'';'\'' '\''export '\''\'\'''\''fork_branch=renovate/rubygems-rdoc-vulnerability'\''\'\'''\'''\'' '\'';'\'' '\''export '\''\'\'''\''head_branch=master'\''\'\'''\'''\'' '\'';'\'' '\''export '\''\'\'''\''pull_title=Update dependency rdoc to v6 [SECURITY]'\''\'\'''\'''\'' '\'';'\'' '\''export '\''\'\'''\''author=yegor256'\''\'\'''\'''\'' '\'';'\'' '\''export GEM_HOME=~/.ruby'\'' '\'';'\'' '\''export GEM_PATH=$GEM_HOME:$GEM_PATH'\'' '\'';'\'' '\''bundle install --no-color'\'' '\'';'\'' '\''bundle exec rake'\'' '\'';'\'' )' --hostname=docker --privileged --net=host --dns 8.8.8.8 --add-host docker:127.0.0.1 --memory=8g --memory-swap=16g --oom-kill-disable --cidfile=/tmp/rultor-Djpa/cid -w=/main -v /var/run/docker.sock:/var/run/docker.sock --name=yegor256_futex_32 yegor256/rultor-image /main/entry.sh
WARNING: Your kernel does not support OomKillDisable. OomKillDisable discarded.
Using /usr/local/rvm/gems/ruby-3.2.2
Using /usr/local/rvm/gems/ruby-3.2.2
+ set -e
+ set -o pipefail
+ shopt -s dotglob
+ useradd -m -G sudo r
++ awk -F : '$3 > 100 { print $1 }'
++ cat /etc/group
+ for g in $(cat /etc/group | awk  -F  ':' '$3 > 100 { print $1 }')
+ usermod -a -G nogroup r
+ for g in $(cat /etc/group | awk  -F  ':' '$3 > 100 { print $1 }')
+ usermod -a -G systemd-journal r
+ for g in $(cat /etc/group | awk  -F  ':' '$3 > 100 { print $1 }')
+ usermod -a -G systemd-network r
+ for g in $(cat /etc/group | awk  -F  ':' '$3 > 100 { print $1 }')
+ usermod -a -G systemd-resolve r
+ for g in $(cat /etc/group | awk  -F  ':' '$3 > 100 { print $1 }')
+ usermod -a -G messagebus r
+ for g in $(cat /etc/group | awk  -F  ':' '$3 > 100 { print $1 }')
+ usermod -a -G _ssh r
+ for g in $(cat /etc/group | awk  -F  ':' '$3 > 100 { print $1 }')
+ usermod -a -G rvm r
+ for g in $(cat /etc/group | awk  -F  ':' '$3 > 100 { print $1 }')
+ usermod -a -G ssl-cert r
+ for g in $(cat /etc/group | awk  -F  ':' '$3 > 100 { print $1 }')
+ usermod -a -G postgres r
+ for g in $(cat /etc/group | awk  -F  ':' '$3 > 100 { print $1 }')
+ usermod -a -G r r
+ usermod -s /bin/bash r
+ echo '%sudo ALL=(ALL) NOPASSWD:ALL'
+ cp -R /root/.bashrc /root/.cargo /root/.config /root/.gem /root/.gemrc /root/.launchpadlib /root/.m2 /root/.profile /root/.rustup /root/.rvmrc /root/texmf /home/r
+ cp -R ./cid ./end.sh ./entry.sh ./pid ./repo ./rubygems.yml ./run.sh ./script.sh ./stdout /home/r
+ rm -rf repo
+ chown -R r:r /home/r
+ chmod a+x /home/r/script.sh
+ cat /home/r/script.sh
#!/bin/bash
set -e
set -o pipefail
if [ -e /home/r/.profile ]; then source /home/r/.profile; fi
shopt -s expand_aliases
alias 'sudo=sudo -i'
export HOME=/home/r
cd "${HOME}/repo"
export 'head=git@github.com:yegor256/futex.git' ; export 'pull_id=32' ; export 'fork=git@github.com:yegor256/futex.git' ; export 'fork_branch=renovate/rubygems-rdoc-vulnerability' ; export 'head_branch=master' ; export 'pull_title=Update dependency rdoc to v6 [SECURITY]' ; export 'author=yegor256' ; export GEM_HOME=~/.ruby ; export GEM_PATH=$GEM_HOME:$GEM_PATH ; bundle install --no-color ; bundle exec rake ;
+ su --login r --command /home/r/script.sh
Using /usr/local/rvm/gems/ruby-3.2.2
Using /usr/local/rvm/gems/ruby-3.2.2
Using /usr/local/rvm/gems/ruby-3.2.2
Using /usr/local/rvm/gems/ruby-3.2.2
Fetching gem metadata from https://rubygems.org/.........
Resolving dependencies...
Fetching rake 13.2.1
Installing rake 13.2.1
Fetching ast 2.4.2
Installing ast 2.4.2
Fetching backtrace 0.4.0
Installing backtrace 0.4.0
Using bundler 2.4.10
Fetching concurrent-ruby 1.3.5
Installing concurrent-ruby 1.3.5
Using futex 0.0.0 from source at `.`
Fetching jaro_winkler 1.5.6
Installing jaro_winkler 1.5.6 with native extensions
Fetching minitest 5.11.3
Installing minitest 5.11.3
Fetching parallel 1.26.3
Installing parallel 1.26.3
Fetching racc 1.8.1
Installing racc 1.8.1 with native extensions
Fetching parser 3.3.7.1
Installing parser 3.3.7.1
GemWrappers: Can not wrap missing file: ruby-parse
GemWrappers: Can not wrap missing file: ruby-rewrite
GemWrappers: Can not wrap missing file: ruby-parse
GemWrappers: Can not wrap missing file: ruby-rewrite
Fetching powerpack 0.1.3
Installing powerpack 0.1.3
Using rainbow 3.1.1
Fetching rdoc 6.1.2.1
Installing rdoc 6.1.2.1
Fetching ruby-progressbar 1.13.0
Installing ruby-progressbar 1.13.0
Fetching unicode-display_width 1.4.1
Installing unicode-display_width 1.4.1
Fetching rubocop 0.62.0
Installing rubocop 0.62.0
GemWrappers: Can not wrap missing file: rubocop
GemWrappers: Can not wrap missing file: rubocop
Fetching rubocop-minitest 0.0.1
Installing rubocop-minitest 0.0.1
Fetching rubocop-performance 1.0.0
Installing rubocop-performance 1.0.0
Fetching rubocop-rake 0.5.1
Installing rubocop-rake 0.5.1
Fetching rubocop-rspec 1.31.0
Installing rubocop-rspec 1.31.0
Fetching threads 0.4.1
Installing threads 0.4.1
Bundle complete! 10 Gemfile dependencies, 22 gems now installed.
Use `bundle info [gemname]` to see where a bundled gem is installed.
/home/r/repo/Rakefile:27: warning: already initialized constant CLEAN
/home/r/.ruby/gems/rake-13.2.1/lib/rake/clean.rb:63: warning: previous definition of CLEAN was here
Run options: --seed 54658

# Running:

.......Futex::CantLock: #1096-ex/assert-thread-0[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1013-sh/assert-thread-13[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 4ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1098-ex/assert-thread-0[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1095-sh/assert-thread-9[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 5ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1015-ex/assert-thread-0[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.01s of waiting: #1014-sh/assert-thread-16[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 8ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1014-ex/assert-thread-0[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1100-sh/assert-thread-4[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 8ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1095-ex/assert-thread-0[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1097-sh/assert-thread-18[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 9ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1013-ex/assert-thread-2[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1100-sh/assert-thread-16[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 5ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1097-ex/assert-thread-0[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1015-sh/assert-thread-2[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 9ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1100-ex/assert-thread-0[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1096-sh/assert-thread-9[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 8ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1099-ex/assert-thread-0[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1098-sh/assert-thread-7[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 8ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1013-ex/assert-thread-11[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1097-sh/assert-thread-18[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 5ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1097-ex/assert-thread-12[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1013-sh/assert-thread-12[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 6ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1014-ex/assert-thread-9[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1012-sh/assert-thread-0[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 10ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1096-ex/assert-thread-10[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1012-sh/assert-thread-5[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 17ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1013-ex/assert-thread-8[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1099-sh/assert-thread-4[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 7ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1095-ex/assert-thread-16[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1014-sh/assert-thread-7[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 5ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1012-ex/assert-thread-1[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1099-sh/assert-thread-1[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 6ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1015-ex/assert-thread-5[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1096-sh/assert-thread-9[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 14ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1099-ex/assert-thread-16[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1015-sh/assert-thread-8[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 4ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1098-ex/assert-thread-6[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1014-sh/assert-thread-4[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 6ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1100-ex/assert-thread-11[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1014-sh/assert-thread-12[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 5ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1014-ex/assert-thread-13[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1100-sh/assert-thread-17[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 8ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1012-ex/assert-thread-16[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting:  (modified 6ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1013-ex/assert-thread-4[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1098-sh/assert-thread-7[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 15ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1096-ex/assert-thread-17[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1099-sh/assert-thread-1[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 19ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1097-ex/assert-thread-7[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1095-sh/assert-thread-19[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 4ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1015-ex/assert-thread-7[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1097-sh/assert-thread-4[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 9ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1099-ex/assert-thread-6[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1095-sh/assert-thread-19[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 7ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1098-ex/assert-thread-13[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1015-sh/assert-thread-8[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 7ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1095-ex/assert-thread-11[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1012-sh/assert-thread-5[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 6ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1100-ex/assert-thread-14[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1099-sh/assert-thread-1[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 6ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1014-ex/assert-thread-1[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1096-sh/assert-thread-15[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 8ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1096-ex/assert-thread-18[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1098-sh/assert-thread-5[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 5ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1012-ex/assert-thread-2[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1097-sh/assert-thread-3[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 9ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1013-ex/assert-thread-10[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1097-sh/assert-thread-6[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 8ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1095-ex/assert-thread-12[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1015-sh/assert-thread-4[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 7ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1099-ex/assert-thread-17[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1012-sh/assert-thread-5[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 13ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1098-ex/assert-thread-8[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1099-sh/assert-thread-1[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 10ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1097-ex/assert-thread-13[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1098-sh/assert-thread-5[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 7ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1014-ex/assert-thread-6[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1013-sh/assert-thread-16[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 8ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1015-ex/assert-thread-14[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1099-sh/assert-thread-5[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 8ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1100-ex/assert-thread-12[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1095-sh/assert-thread-3[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 7ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1013-ex/assert-thread-6[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1013-sh/assert-thread-16[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 8ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1097-ex/assert-thread-8[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1098-sh/assert-thread-5[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 6ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1098-ex/assert-thread-12[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1013-sh/assert-thread-16[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 8ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1096-ex/assert-thread-13[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1012-sh/assert-thread-5[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 5ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1099-ex/assert-thread-18[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1096-sh/assert-thread-15[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 8ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1012-ex/assert-thread-18[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1098-sh/assert-thread-7[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 7ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1095-ex/assert-thread-13[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1015-sh/assert-thread-4[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 7ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1100-ex/assert-thread-13[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1014-sh/assert-thread-4[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 6ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1015-ex/assert-thread-16[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.01s of waiting: #1014-sh/assert-thread-4[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 8ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1014-ex/assert-thread-8[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1099-sh/assert-thread-1[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 5ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1096-ex/assert-thread-11[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1095-sh/assert-thread-5[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 4ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1012-ex/assert-thread-9[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1013-sh/assert-thread-16[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 4ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1098-ex/assert-thread-19[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1098-sh/assert-thread-7[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 6ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1013-ex/assert-thread-3[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1095-sh/assert-thread-9[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 5ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1099-ex/assert-thread-2[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1099-sh/assert-thread-1[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 5ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1095-ex/assert-thread-10[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1015-sh/assert-thread-4[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 6ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1015-ex/assert-thread-9[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1097-sh/assert-thread-18[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 7ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1100-ex/assert-thread-1[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1097-sh/assert-thread-18[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 16ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1097-ex/assert-thread-2[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1096-sh/assert-thread-9[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 8ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1014-ex/assert-thread-19[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1098-sh/assert-thread-7[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 8ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1012-ex/assert-thread-4[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1014-sh/assert-thread-4[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 6ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1099-ex/assert-thread-12[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1013-sh/assert-thread-16[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 5ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1098-ex/assert-thread-11[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1015-sh/assert-thread-4[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 7ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1096-ex/assert-thread-7[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1012-sh/assert-thread-5[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 8ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1097-ex/assert-thread-19[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1012-sh/assert-thread-5[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 6ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1013-ex/assert-thread-5[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1013-ex/assert-thread-17[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 6ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1095-ex/assert-thread-18[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1097-sh/assert-thread-15[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 5ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1015-ex/assert-thread-6[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1095-sh/assert-thread-6[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 8ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1100-ex/assert-thread-3[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1095-sh/assert-thread-7[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 6ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1014-ex/assert-thread-3[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1099-sh/assert-thread-19[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 7ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1098-ex/assert-thread-4[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1013-sh/assert-thread-7[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 7ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1012-ex/assert-thread-10[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting:  (modified 11ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1096-ex/assert-thread-8[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1012-ex/assert-thread-11[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 8ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1097-ex/assert-thread-10[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1098-sh/assert-thread-3[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 7ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1015-ex/assert-thread-15[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1013-sh/assert-thread-1[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 6ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
Futex::CantLock: #1013-ex/assert-thread-19[/home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] can't get exclusive access to the file /tmp/d20250217-987-1z08ub/g/e/f/file.txt because of the lock at /tmp/d20250217-987-1z08ub/g/e/f/file.txt.lock, after 16.0s of waiting: #1100-sh/assert-thread-2[/home/r/repo/test/test_futex.rb:130:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'] (modified 4ms ago)
        /home/r/repo/lib/futex.rb:116:in `block (2 levels) in open'
        /home/r/repo/lib/futex.rb:105:in `loop'
        /home/r/repo/lib/futex.rb:105:in `block in open'
        /home/r/repo/lib/futex.rb:176:in `open_synchronized'
        /home/r/repo/lib/futex.rb:103:in `open'
        /home/r/repo/test/test_futex.rb:124:in `block (4 levels) in test_exclusive_and_shared_locking_in_processes'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:77:in `block (3 levels) in assert'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `loop'
        /home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:73:in `block (2 levels) in assert'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:359:in `run_task'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:350:in `block (3 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `loop'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:341:in `block (2 levels) in create_worker'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `catch'
        /home/r/.ruby/gems/concurrent-ruby-1.3.5/lib/concurrent-ruby/concurrent/executor/ruby_thread_pool_executor.rb:340:in `block in create_worker'
/home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:94:in `assert': 1mOnly 12 out of 20 threads completed successfully (1;4mRuntimeErrorm1m)m
        from /home/r/repo/test/test_futex.rb:122:in `block (3 levels) in test_exclusive_and_shared_locking_in_processes'
        from /home/r/repo/test/test_futex.rb:121:in `fork'
        from /home/r/repo/test/test_futex.rb:121:in `block (2 levels) in test_exclusive_and_shared_locking_in_processes'
        from /home/r/repo/test/test_futex.rb:120:in `times'
        from /home/r/repo/test/test_futex.rb:120:in `block in test_exclusive_and_shared_locking_in_processes'
        from /usr/local/rvm/rubies/ruby-3.2.2/lib/ruby/3.2.0/tmpdir.rb:94:in `mktmpdir'
        from /home/r/repo/test/test_futex.rb:118:in `test_exclusive_and_shared_locking_in_processes'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:98:in `block (3 levels) in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:195:in `capture_exceptions'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:95:in `block (2 levels) in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:265:in `time_it'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:94:in `block in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:360:in `on_signal'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:211:in `with_info_handler'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:93:in `run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:960:in `run_one_method'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:334:in `run_one_method'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:321:in `block (2 levels) in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:320:in `each'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:320:in `block in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:360:in `on_signal'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:347:in `with_info_handler'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:319:in `run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:159:in `block in __run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:159:in `map'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:159:in `__run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:136:in `run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:63:in `block in autorun'
/home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:94:in `assert': 1mOnly 13 out of 20 threads completed successfully (1;4mRuntimeErrorm1m)m
        from /home/r/repo/test/test_futex.rb:122:in `block (3 levels) in test_exclusive_and_shared_locking_in_processes'
        from /home/r/repo/test/test_futex.rb:121:in `fork'
        from /home/r/repo/test/test_futex.rb:121:in `block (2 levels) in test_exclusive_and_shared_locking_in_processes'
        from /home/r/repo/test/test_futex.rb:120:in `times'
        from /home/r/repo/test/test_futex.rb:120:in `block in test_exclusive_and_shared_locking_in_processes'
        from /usr/local/rvm/rubies/ruby-3.2.2/lib/ruby/3.2.0/tmpdir.rb:94:in `mktmpdir'
        from /home/r/repo/test/test_futex.rb:118:in `test_exclusive_and_shared_locking_in_processes'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:98:in `block (3 levels) in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:195:in `capture_exceptions'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:95:in `block (2 levels) in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:265:in `time_it'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:94:in `block in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:360:in `on_signal'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:211:in `with_info_handler'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:93:in `run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:960:in `run_one_method'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:334:in `run_one_method'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:321:in `block (2 levels) in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:320:in `each'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:320:in `block in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:360:in `on_signal'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:347:in `with_info_handler'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:319:in `run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:159:in `block in __run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:159:in `map'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:159:in `__run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:136:in `run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:63:in `block in autorun'
/home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:94:in `assert': 1mOnly 12 out of 20 threads completed successfully (1;4mRuntimeErrorm1m)m
        from /home/r/repo/test/test_futex.rb:122:in `block (3 levels) in test_exclusive_and_shared_locking_in_processes'
        from /home/r/repo/test/test_futex.rb:121:in `fork'
        from /home/r/repo/test/test_futex.rb:121:in `block (2 levels) in test_exclusive_and_shared_locking_in_processes'
        from /home/r/repo/test/test_futex.rb:120:in `times'
        from /home/r/repo/test/test_futex.rb:120:in `block in test_exclusive_and_shared_locking_in_processes'
        from /usr/local/rvm/rubies/ruby-3.2.2/lib/ruby/3.2.0/tmpdir.rb:94:in `mktmpdir'
        from /home/r/repo/test/test_futex.rb:118:in `test_exclusive_and_shared_locking_in_processes'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:98:in `block (3 levels) in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:195:in `capture_exceptions'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:95:in `block (2 levels) in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:265:in `time_it'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:94:in `block in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:360:in `on_signal'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:211:in `with_info_handler'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:93:in `run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:960:in `run_one_method'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:334:in `run_one_method'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:321:in `block (2 levels) in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:320:in `each'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:320:in `block in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:360:in `on_signal'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:347:in `with_info_handler'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:319:in `run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:159:in `block in __run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:159:in `map'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:159:in `__run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:136:in `run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:63:in `block in autorun'
/home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:94:in `assert': 1mOnly 13 out of 20 threads completed successfully (1;4mRuntimeErrorm1m)m
        from /home/r/repo/test/test_futex.rb:122:in `block (3 levels) in test_exclusive_and_shared_locking_in_processes'
        from /home/r/repo/test/test_futex.rb:121:in `fork'
        from /home/r/repo/test/test_futex.rb:121:in `block (2 levels) in test_exclusive_and_shared_locking_in_processes'
        from /home/r/repo/test/test_futex.rb:120:in `times'
        from /home/r/repo/test/test_futex.rb:120:in `block in test_exclusive_and_shared_locking_in_processes'
        from /usr/local/rvm/rubies/ruby-3.2.2/lib/ruby/3.2.0/tmpdir.rb:94:in `mktmpdir'
        from /home/r/repo/test/test_futex.rb:118:in `test_exclusive_and_shared_locking_in_processes'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:98:in `block (3 levels) in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:195:in `capture_exceptions'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:95:in `block (2 levels) in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:265:in `time_it'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:94:in `block in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:360:in `on_signal'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:211:in `with_info_handler'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:93:in `run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:960:in `run_one_method'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:334:in `run_one_method'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:321:in `block (2 levels) in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:320:in `each'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:320:in `block in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:360:in `on_signal'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:347:in `with_info_handler'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:319:in `run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:159:in `block in __run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:159:in `map'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:159:in `__run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:136:in `run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:63:in `block in autorun'
/home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:94:in `assert': 1mOnly 12 out of 20 threads completed successfully (1;4mRuntimeErrorm1m)m
        from /home/r/repo/test/test_futex.rb:122:in `block (3 levels) in test_exclusive_and_shared_locking_in_processes'
        from /home/r/repo/test/test_futex.rb:121:in `fork'
        from /home/r/repo/test/test_futex.rb:121:in `block (2 levels) in test_exclusive_and_shared_locking_in_processes'
        from /home/r/repo/test/test_futex.rb:120:in `times'
        from /home/r/repo/test/test_futex.rb:120:in `block in test_exclusive_and_shared_locking_in_processes'
        from /usr/local/rvm/rubies/ruby-3.2.2/lib/ruby/3.2.0/tmpdir.rb:94:in `mktmpdir'
        from /home/r/repo/test/test_futex.rb:118:in `test_exclusive_and_shared_locking_in_processes'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:98:in `block (3 levels) in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:195:in `capture_exceptions'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:95:in `block (2 levels) in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:265:in `time_it'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:94:in `block in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:360:in `on_signal'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:211:in `with_info_handler'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:93:in `run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:960:in `run_one_method'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:334:in `run_one_method'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:321:in `block (2 levels) in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:320:in `each'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:320:in `block in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:360:in `on_signal'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:347:in `with_info_handler'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:319:in `run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:159:in `block in __run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:159:in `map'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:159:in `__run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:136:in `run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:63:in `block in autorun'
/home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:94:in `assert': 1mOnly 13 out of 20 threads completed successfully (1;4mRuntimeErrorm1m)m
        from /home/r/repo/test/test_futex.rb:122:in `block (3 levels) in test_exclusive_and_shared_locking_in_processes'
        from /home/r/repo/test/test_futex.rb:121:in `fork'
        from /home/r/repo/test/test_futex.rb:121:in `block (2 levels) in test_exclusive_and_shared_locking_in_processes'
        from /home/r/repo/test/test_futex.rb:120:in `times'
        from /home/r/repo/test/test_futex.rb:120:in `block in test_exclusive_and_shared_locking_in_processes'
        from /usr/local/rvm/rubies/ruby-3.2.2/lib/ruby/3.2.0/tmpdir.rb:94:in `mktmpdir'
        from /home/r/repo/test/test_futex.rb:118:in `test_exclusive_and_shared_locking_in_processes'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:98:in `block (3 levels) in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:195:in `capture_exceptions'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:95:in `block (2 levels) in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:265:in `time_it'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:94:in `block in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:360:in `on_signal'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:211:in `with_info_handler'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:93:in `run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:960:in `run_one_method'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:334:in `run_one_method'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:321:in `block (2 levels) in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:320:in `each'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:320:in `block in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:360:in `on_signal'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:347:in `with_info_handler'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:319:in `run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:159:in `block in __run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:159:in `map'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:159:in `__run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:136:in `run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:63:in `block in autorun'
/home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:94:in `assert': 1mOnly 12 out of 20 threads completed successfully (1;4mRuntimeErrorm1m)m
        from /home/r/repo/test/test_futex.rb:122:in `block (3 levels) in test_exclusive_and_shared_locking_in_processes'
        from /home/r/repo/test/test_futex.rb:121:in `fork'
        from /home/r/repo/test/test_futex.rb:121:in `block (2 levels) in test_exclusive_and_shared_locking_in_processes'
        from /home/r/repo/test/test_futex.rb:120:in `times'
        from /home/r/repo/test/test_futex.rb:120:in `block in test_exclusive_and_shared_locking_in_processes'
        from /usr/local/rvm/rubies/ruby-3.2.2/lib/ruby/3.2.0/tmpdir.rb:94:in `mktmpdir'
        from /home/r/repo/test/test_futex.rb:118:in `test_exclusive_and_shared_locking_in_processes'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:98:in `block (3 levels) in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:195:in `capture_exceptions'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:95:in `block (2 levels) in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:265:in `time_it'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:94:in `block in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:360:in `on_signal'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:211:in `with_info_handler'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:93:in `run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:960:in `run_one_method'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:334:in `run_one_method'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:321:in `block (2 levels) in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:320:in `each'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:320:in `block in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:360:in `on_signal'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:347:in `with_info_handler'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:319:in `run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:159:in `block in __run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:159:in `map'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:159:in `__run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:136:in `run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:63:in `block in autorun'
/home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:94:in `assert': 1mOnly 12 out of 20 threads completed successfully (1;4mRuntimeErrorm1m)m
        from /home/r/repo/test/test_futex.rb:122:in `block (3 levels) in test_exclusive_and_shared_locking_in_processes'
        from /home/r/repo/test/test_futex.rb:121:in `fork'
        from /home/r/repo/test/test_futex.rb:121:in `block (2 levels) in test_exclusive_and_shared_locking_in_processes'
        from /home/r/repo/test/test_futex.rb:120:in `times'
        from /home/r/repo/test/test_futex.rb:120:in `block in test_exclusive_and_shared_locking_in_processes'
        from /usr/local/rvm/rubies/ruby-3.2.2/lib/ruby/3.2.0/tmpdir.rb:94:in `mktmpdir'
        from /home/r/repo/test/test_futex.rb:118:in `test_exclusive_and_shared_locking_in_processes'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:98:in `block (3 levels) in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:195:in `capture_exceptions'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:95:in `block (2 levels) in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:265:in `time_it'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:94:in `block in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:360:in `on_signal'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:211:in `with_info_handler'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:93:in `run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:960:in `run_one_method'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:334:in `run_one_method'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:321:in `block (2 levels) in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:320:in `each'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:320:in `block in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:360:in `on_signal'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:347:in `with_info_handler'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:319:in `run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:159:in `block in __run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:159:in `map'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:159:in `__run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:136:in `run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:63:in `block in autorun'
/home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:94:in `assert': 1mOnly 11 out of 20 threads completed successfully (1;4mRuntimeErrorm1m)m
        from /home/r/repo/test/test_futex.rb:122:in `block (3 levels) in test_exclusive_and_shared_locking_in_processes'
        from /home/r/repo/test/test_futex.rb:121:in `fork'
        from /home/r/repo/test/test_futex.rb:121:in `block (2 levels) in test_exclusive_and_shared_locking_in_processes'
        from /home/r/repo/test/test_futex.rb:120:in `times'
        from /home/r/repo/test/test_futex.rb:120:in `block in test_exclusive_and_shared_locking_in_processes'
        from /usr/local/rvm/rubies/ruby-3.2.2/lib/ruby/3.2.0/tmpdir.rb:94:in `mktmpdir'
        from /home/r/repo/test/test_futex.rb:118:in `test_exclusive_and_shared_locking_in_processes'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:98:in `block (3 levels) in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:195:in `capture_exceptions'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:95:in `block (2 levels) in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:265:in `time_it'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:94:in `block in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:360:in `on_signal'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:211:in `with_info_handler'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:93:in `run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:960:in `run_one_method'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:334:in `run_one_method'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:321:in `block (2 levels) in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:320:in `each'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:320:in `block in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:360:in `on_signal'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:347:in `with_info_handler'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:319:in `run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:159:in `block in __run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:159:in `map'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:159:in `__run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:136:in `run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:63:in `block in autorun'
/home/r/.ruby/gems/threads-0.4.1/lib/threads.rb:94:in `assert': 1mOnly 13 out of 20 threads completed successfully (1;4mRuntimeErrorm1m)m
        from /home/r/repo/test/test_futex.rb:122:in `block (3 levels) in test_exclusive_and_shared_locking_in_processes'
        from /home/r/repo/test/test_futex.rb:121:in `fork'
        from /home/r/repo/test/test_futex.rb:121:in `block (2 levels) in test_exclusive_and_shared_locking_in_processes'
        from /home/r/repo/test/test_futex.rb:120:in `times'
        from /home/r/repo/test/test_futex.rb:120:in `block in test_exclusive_and_shared_locking_in_processes'
        from /usr/local/rvm/rubies/ruby-3.2.2/lib/ruby/3.2.0/tmpdir.rb:94:in `mktmpdir'
        from /home/r/repo/test/test_futex.rb:118:in `test_exclusive_and_shared_locking_in_processes'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:98:in `block (3 levels) in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:195:in `capture_exceptions'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:95:in `block (2 levels) in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:265:in `time_it'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:94:in `block in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:360:in `on_signal'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:211:in `with_info_handler'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest/test.rb:93:in `run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:960:in `run_one_method'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:334:in `run_one_method'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:321:in `block (2 levels) in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:320:in `each'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:320:in `block in run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:360:in `on_signal'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:347:in `with_info_handler'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:319:in `run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:159:in `block in __run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:159:in `map'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:159:in `__run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:136:in `run'
        from /home/r/.ruby/gems/minitest-5.11.3/lib/minitest.rb:63:in `block in autorun'
ELocked by #987-ex/assert-thread-1[/home/r/repo/test/test_futex.rb:41:in `block (2 levels) in test_syncs_access_to_file'] in 181μs, exclusive: /tmp/d20250217-987-b4xoj0/a/b/c/file.txt (attempt no.0)
Unlocked by #987-ex/assert-thread-1[/home/r/repo/test/test_futex.rb:41:in `block (2 levels) in test_syncs_access_to_file'] in 92μs, exclusive: /tmp/d20250217-987-b4xoj0/a/b/c/file.txt
Locked by #987-ex/assert-thread-0[/home/r/repo/test/test_futex.rb:41:in `block (2 levels) in test_syncs_access_to_file'] in 1ms, exclusive: /tmp/d20250217-987-b4xoj0/a/b/c/file.txt (attempt no.0)
Unlocked by #987-ex/assert-thread-0[/home/r/repo/test/test_futex.rb:41:in `block (2 levels) in test_syncs_access_to_file'] in 66μs, exclusive: /tmp/d20250217-987-b4xoj0/a/b/c/file.txt
....

Finished in 31.653402s, 0.3791 runs/s, 38.3213 assertions/s.

  1) Error:
FutexTest#test_exclusive_and_shared_locking_in_processes:
RuntimeError: Failed in PID #1096: pid 1096 exit 1
    /home/r/repo/test/test_futex.rb:141:in `block (2 levels) in test_exclusive_and_shared_locking_in_processes'
    /home/r/repo/test/test_futex.rb:140:in `each'
    /home/r/repo/test/test_futex.rb:140:in `block in test_exclusive_and_shared_locking_in_processes'
    /usr/local/rvm/rubies/ruby-3.2.2/lib/ruby/3.2.0/tmpdir.rb:94:in `mktmpdir'
    /home/r/repo/test/test_futex.rb:118:in `test_exclusive_and_shared_locking_in_processes'

12 runs, 1213 assertions, 0 failures, 1 errors, 0 skips
rake aborted!
Command failed with status (1)
/home/r/.ruby/gems/rake-13.2.1/exe/rake:27:in `<top (required)>'
/home/r/.ruby/bin/ruby_executable_hooks:22:in `eval'
/home/r/.ruby/bin/ruby_executable_hooks:22:in `<main>'
Tasks: TOP => default => test
(See full trace by running task with --trace)
container 9f574a6ab0b266407e28581ef83921488d13bfdf9e062c4a0cf6b547e2cb2e8a is dead
Mon Feb 17 19:35:15 UTC 2025