[INFO] fetching crate workerpool-rs 0.1.3...
[INFO] testing workerpool-rs-0.1.3 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate workerpool-rs 0.1.3 into /workspace/builds/worker-21/source
[INFO] validating manifest of crates.io crate workerpool-rs 0.1.3 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate workerpool-rs 0.1.3
[INFO] finished tweaking crates.io crate workerpool-rs 0.1.3
[INFO] tweaked toml for crates.io crate workerpool-rs 0.1.3 written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eb97d440056ef158dcbf025919a220900a792a0759c00e6dce3d447231ac79d4
[INFO] running `Command { std: "docker" "start" "-a" "eb97d440056ef158dcbf025919a220900a792a0759c00e6dce3d447231ac79d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb97d440056ef158dcbf025919a220900a792a0759c00e6dce3d447231ac79d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb97d440056ef158dcbf025919a220900a792a0759c00e6dce3d447231ac79d4", kill_on_drop: false }`
[INFO] [stdout] eb97d440056ef158dcbf025919a220900a792a0759c00e6dce3d447231ac79d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92fad156d842302fe495f9c3d3a56fcc09bf34b139e51e50b643b2f25833b569
[INFO] running `Command { std: "docker" "start" "-a" "92fad156d842302fe495f9c3d3a56fcc09bf34b139e51e50b643b2f25833b569", kill_on_drop: false }`
[INFO] [stderr]    Compiling workerpool-rs v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.18s
[INFO] running `Command { std: "docker" "inspect" "92fad156d842302fe495f9c3d3a56fcc09bf34b139e51e50b643b2f25833b569", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92fad156d842302fe495f9c3d3a56fcc09bf34b139e51e50b643b2f25833b569", kill_on_drop: false }`
[INFO] [stdout] 92fad156d842302fe495f9c3d3a56fcc09bf34b139e51e50b643b2f25833b569
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 275436678c5f68750339b41e6e1b329788a855486c9adef717357b948cb66ef6
[INFO] running `Command { std: "docker" "start" "-a" "275436678c5f68750339b41e6e1b329788a855486c9adef717357b948cb66ef6", kill_on_drop: false }`
[INFO] [stderr]    Compiling workerpool-rs v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "275436678c5f68750339b41e6e1b329788a855486c9adef717357b948cb66ef6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "275436678c5f68750339b41e6e1b329788a855486c9adef717357b948cb66ef6", kill_on_drop: false }`
[INFO] [stdout] 275436678c5f68750339b41e6e1b329788a855486c9adef717357b948cb66ef6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 45e7c580b17df4a505aca78a6773d1643b5ad8add5dddd1da5113bc3c21d0a00
[INFO] running `Command { std: "docker" "start" "-a" "45e7c580b17df4a505aca78a6773d1643b5ad8add5dddd1da5113bc3c21d0a00", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 3 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/workerpool_rs-5a4d97c29d8d042a)
[INFO] [stdout] test pool::unit_tests::worker_should_return_new ... ok
[INFO] [stdout] test pool::unit_tests::workerpool_should_return_new ... ok
[INFO] [stderr]      Running tests/integration.rs (/opt/rustwide/target/debug/deps/integration-9760070a7994719b)
[INFO] [stdout] test pool::unit_tests::workerpool_should_execute_job_succeed ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test pool_should_synchronize_sender_and_receiver_and_fold_results ... ok
[INFO] [stdout] test pool_should_sum_atomic_variable ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests workerpool-rs
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/pool.rs - pool::WorkerPool::new (line 34) ... ok
[INFO] [stdout] test src/lib.rs - (line 30) ... ok
[INFO] [stdout] test src/lib.rs - (line 10) ... ok
[INFO] [stdout] test src/pool.rs - pool::WorkerPool::execute (line 61) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.50s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "45e7c580b17df4a505aca78a6773d1643b5ad8add5dddd1da5113bc3c21d0a00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45e7c580b17df4a505aca78a6773d1643b5ad8add5dddd1da5113bc3c21d0a00", kill_on_drop: false }`
[INFO] [stdout] 45e7c580b17df4a505aca78a6773d1643b5ad8add5dddd1da5113bc3c21d0a00