[INFO] fetching crate safina-threadpool 0.1.3...
[INFO] testing safina-threadpool-0.1.3 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate safina-threadpool 0.1.3 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate safina-threadpool 0.1.3 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate safina-threadpool 0.1.3
[INFO] finished tweaking crates.io crate safina-threadpool 0.1.3
[INFO] tweaked toml for crates.io crate safina-threadpool 0.1.3 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded safina-timer v0.1.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 37a343c56c02915d5f1da00af251405b09327ce0c79246b027f4105525ec5dbb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "37a343c56c02915d5f1da00af251405b09327ce0c79246b027f4105525ec5dbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37a343c56c02915d5f1da00af251405b09327ce0c79246b027f4105525ec5dbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37a343c56c02915d5f1da00af251405b09327ce0c79246b027f4105525ec5dbb", kill_on_drop: false }`
[INFO] [stdout] 37a343c56c02915d5f1da00af251405b09327ce0c79246b027f4105525ec5dbb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef6885475c2122aa7748f8523e7afa095acb19b2f43960ec6a6fa2938b2d9ed5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ef6885475c2122aa7748f8523e7afa095acb19b2f43960ec6a6fa2938b2d9ed5", kill_on_drop: false }`
[INFO] [stderr]    Compiling safina-threadpool v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `Command { std: "docker" "inspect" "ef6885475c2122aa7748f8523e7afa095acb19b2f43960ec6a6fa2938b2d9ed5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef6885475c2122aa7748f8523e7afa095acb19b2f43960ec6a6fa2938b2d9ed5", kill_on_drop: false }`
[INFO] [stdout] ef6885475c2122aa7748f8523e7afa095acb19b2f43960ec6a6fa2938b2d9ed5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 63d33d5c2799ec5e983c9303518bd30c6e40aead3eb36c79af8ab6b84570f7ca
[INFO] running `Command { std: "docker" "start" "-a" "63d33d5c2799ec5e983c9303518bd30c6e40aead3eb36c79af8ab6b84570f7ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling safina-threadpool v0.1.3
[INFO] [stderr]    Compiling safina-sync v0.1.5
[INFO] [stderr]    Compiling safina-timer v0.1.9
[INFO] [stderr]    Compiling safina-executor v0.1.7
[INFO] [stderr]    Compiling safina-threadpool v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.78s
[INFO] running `Command { std: "docker" "inspect" "63d33d5c2799ec5e983c9303518bd30c6e40aead3eb36c79af8ab6b84570f7ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63d33d5c2799ec5e983c9303518bd30c6e40aead3eb36c79af8ab6b84570f7ca", kill_on_drop: false }`
[INFO] [stdout] 63d33d5c2799ec5e983c9303518bd30c6e40aead3eb36c79af8ab6b84570f7ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 455db1c7696a0e732ed32194b26b5b481ba452954dec40c642a75ae331967041
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "455db1c7696a0e732ed32194b26b5b481ba452954dec40c642a75ae331967041", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/safina_threadpool-fff24db02044ede5)
[INFO] [stdout] running 18 tests
[INFO] [stdout] test tests::atomic_counter ... ok
[INFO] [stdout] test tests::queue_full_display ... ok
[INFO] [stdout] test tests::test_size ... ok
[INFO] [stdout] test tests::try_schedule_should_run_the_fn ... ok
[INFO] [stdout] test tests::atomic_counter_many_readers ... ok
[INFO] [stdout] test tests::schedule_should_run_the_fn ... ok
[INFO] [stdout] test tests::zero_size ... ok
[INFO] [stdout] test tests::empty_name ... ok
[INFO] [stdout] test tests::try_schedule_queue_full ... ok
[INFO] [stdout] test tests::should_name_threads_consecutively ... ok
[INFO] [stdout] test tests::should_respawn_after_executing_job ... ok
[INFO] [stdout] test tests::schedule_should_start_a_thread_if_none ... ok
[INFO] [stdout] test tests::test_num_live_threads ... ok
[INFO] [stdout] test tests::should_respawn_after_recv ... ok
[INFO] [stdout] test tests::check_concurrency1 ... ok
[INFO] [stdout] test tests::check_concurrency5 ... ok
[INFO] [stdout] test tests::check_concurrency2 ... ok
[INFO] [stdout] test tests::should_respawn_when_idle ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.83s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests safina-threadpool
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - ThreadPool (line 202) ... ok
[INFO] [stdout] test src/lib.rs - (line 27) ... ok
[INFO] [stdout] test src/lib.rs - ThreadPool (line 227) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.86s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "455db1c7696a0e732ed32194b26b5b481ba452954dec40c642a75ae331967041", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "455db1c7696a0e732ed32194b26b5b481ba452954dec40c642a75ae331967041", kill_on_drop: false }`
[INFO] [stdout] 455db1c7696a0e732ed32194b26b5b481ba452954dec40c642a75ae331967041