[INFO] fetching crate arcmutex 0.2.0...
[INFO] testing arcmutex-0.2.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate arcmutex 0.2.0 into /workspace/builds/worker-54/source
[INFO] validating manifest of crates.io crate arcmutex 0.2.0 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 arcmutex 0.2.0
[INFO] finished tweaking crates.io crate arcmutex 0.2.0
[INFO] tweaked toml for crates.io crate arcmutex 0.2.0 written to /workspace/builds/worker-54/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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] d2e3e927eb658c423fb98de3dc6c18bafff9c4a0ca3d00892b7bd7709db78a05
[INFO] running `Command { std: "docker" "start" "-a" "d2e3e927eb658c423fb98de3dc6c18bafff9c4a0ca3d00892b7bd7709db78a05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d2e3e927eb658c423fb98de3dc6c18bafff9c4a0ca3d00892b7bd7709db78a05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2e3e927eb658c423fb98de3dc6c18bafff9c4a0ca3d00892b7bd7709db78a05", kill_on_drop: false }`
[INFO] [stdout] d2e3e927eb658c423fb98de3dc6c18bafff9c4a0ca3d00892b7bd7709db78a05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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] 152f9f80c7b7226b6eca3684feb776c8ae25432a9886d44a02820fa79e8eca3f
[INFO] running `Command { std: "docker" "start" "-a" "152f9f80c7b7226b6eca3684feb776c8ae25432a9886d44a02820fa79e8eca3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling arcmutex v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "152f9f80c7b7226b6eca3684feb776c8ae25432a9886d44a02820fa79e8eca3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "152f9f80c7b7226b6eca3684feb776c8ae25432a9886d44a02820fa79e8eca3f", kill_on_drop: false }`
[INFO] [stdout] 152f9f80c7b7226b6eca3684feb776c8ae25432a9886d44a02820fa79e8eca3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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] 5447ce26a958a9e10871f64a6b8f965572a8dd2d848ca8309ca010e06389acc4
[INFO] running `Command { std: "docker" "start" "-a" "5447ce26a958a9e10871f64a6b8f965572a8dd2d848ca8309ca010e06389acc4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling arcmutex v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.64s
[INFO] running `Command { std: "docker" "inspect" "5447ce26a958a9e10871f64a6b8f965572a8dd2d848ca8309ca010e06389acc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5447ce26a958a9e10871f64a6b8f965572a8dd2d848ca8309ca010e06389acc4", kill_on_drop: false }`
[INFO] [stdout] 5447ce26a958a9e10871f64a6b8f965572a8dd2d848ca8309ca010e06389acc4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-54/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] 6eb2e45d9e7712e322e68cdd6ff787f82cb8c6167347a8e3fa20947fd88dd6d3
[INFO] running `Command { std: "docker" "start" "-a" "6eb2e45d9e7712e322e68cdd6ff787f82cb8c6167347a8e3fa20947fd88dd6d3", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/arcmutex-00121e4f9f220580)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/lib.rs (/opt/rustwide/target/debug/deps/lib-566b05549e114843)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests arcmutex
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - arcmutex (line 8) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.40s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6eb2e45d9e7712e322e68cdd6ff787f82cb8c6167347a8e3fa20947fd88dd6d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6eb2e45d9e7712e322e68cdd6ff787f82cb8c6167347a8e3fa20947fd88dd6d3", kill_on_drop: false }`
[INFO] [stdout] 6eb2e45d9e7712e322e68cdd6ff787f82cb8c6167347a8e3fa20947fd88dd6d3