[INFO] cloning repository https://github.com/rew150/rust-exercise-2-thread-pool
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rew150/rust-exercise-2-thread-pool" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frew150%2Frust-exercise-2-thread-pool", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frew150%2Frust-exercise-2-thread-pool'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ca33c28c79163f8cae3cbea3d5d4e488b86d24d7
[INFO] testing rew150/rust-exercise-2-thread-pool against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frew150%2Frust-exercise-2-thread-pool" "/workspace/builds/worker-97/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-97/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rew150/rust-exercise-2-thread-pool 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 git repo https://github.com/rew150/rust-exercise-2-thread-pool
[INFO] finished tweaking git repo https://github.com/rew150/rust-exercise-2-thread-pool
[INFO] tweaked toml for git repo https://github.com/rew150/rust-exercise-2-thread-pool written to /workspace/builds/worker-97/source/Cargo.toml
[INFO] crate git repo https://github.com/rew150/rust-exercise-2-thread-pool already has a lockfile, it will not be regenerated
[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-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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] f9c56166d1a525b44713524d1c9988519525ef708f0c800a0e10844ed845bd57
[INFO] running `Command { std: "docker" "start" "-a" "f9c56166d1a525b44713524d1c9988519525ef708f0c800a0e10844ed845bd57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9c56166d1a525b44713524d1c9988519525ef708f0c800a0e10844ed845bd57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9c56166d1a525b44713524d1c9988519525ef708f0c800a0e10844ed845bd57", kill_on_drop: false }`
[INFO] [stdout] f9c56166d1a525b44713524d1c9988519525ef708f0c800a0e10844ed845bd57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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] b1c89f6b20a4a85e3e99b739bcecdd9a59e34e4f3ce557fcc9a00a052ef13814
[INFO] running `Command { std: "docker" "start" "-a" "b1c89f6b20a4a85e3e99b739bcecdd9a59e34e4f3ce557fcc9a00a052ef13814", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]    Compiling crossbeam-channel v0.5.2
[INFO] [stderr]    Compiling rust-exercise-2-thread-pool v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 01s
[INFO] running `Command { std: "docker" "inspect" "b1c89f6b20a4a85e3e99b739bcecdd9a59e34e4f3ce557fcc9a00a052ef13814", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1c89f6b20a4a85e3e99b739bcecdd9a59e34e4f3ce557fcc9a00a052ef13814", kill_on_drop: false }`
[INFO] [stdout] b1c89f6b20a4a85e3e99b739bcecdd9a59e34e4f3ce557fcc9a00a052ef13814
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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] c367c11f97d8cbc73cb9029d89f6f6f985410ac6540a65773e3075922b2ef0d8
[INFO] running `Command { std: "docker" "start" "-a" "c367c11f97d8cbc73cb9029d89f6f6f985410ac6540a65773e3075922b2ef0d8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-exercise-2-thread-pool v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.57s
[INFO] running `Command { std: "docker" "inspect" "c367c11f97d8cbc73cb9029d89f6f6f985410ac6540a65773e3075922b2ef0d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c367c11f97d8cbc73cb9029d89f6f6f985410ac6540a65773e3075922b2ef0d8", kill_on_drop: false }`
[INFO] [stdout] c367c11f97d8cbc73cb9029d89f6f6f985410ac6540a65773e3075922b2ef0d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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] c89aa47f46079d41284f8166620ed8d45efbc238c300aa273a771e27ccf523e4
[INFO] running `Command { std: "docker" "start" "-a" "c89aa47f46079d41284f8166620ed8d45efbc238c300aa273a771e27ccf523e4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_exercise_2_thread_pool-e1b271e884a3dbe2)
[INFO] [stdout] 
[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] running `Command { std: "docker" "inspect" "c89aa47f46079d41284f8166620ed8d45efbc238c300aa273a771e27ccf523e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c89aa47f46079d41284f8166620ed8d45efbc238c300aa273a771e27ccf523e4", kill_on_drop: false }`
[INFO] [stdout] c89aa47f46079d41284f8166620ed8d45efbc238c300aa273a771e27ccf523e4