[INFO] cloning repository https://github.com/blt/rwlock_vs_mutex
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/blt/rwlock_vs_mutex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblt%2Frwlock_vs_mutex", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblt%2Frwlock_vs_mutex'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6b00a87603670c0fa0c09fd0f2d036bc7ac4d1cc
[INFO] testing blt/rwlock_vs_mutex against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblt%2Frwlock_vs_mutex" "/workspace/builds/worker-20/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-20/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/blt/rwlock_vs_mutex on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/blt/rwlock_vs_mutex
[INFO] finished tweaking git repo https://github.com/blt/rwlock_vs_mutex
[INFO] tweaked toml for git repo https://github.com/blt/rwlock_vs_mutex written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] crate git repo https://github.com/blt/rwlock_vs_mutex already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2abee363f4b0cd2d5dc3f5e015a3ba89a74a8e55778d09195bcb71046acc62e5
[INFO] running `Command { std: "docker" "start" "-a" "2abee363f4b0cd2d5dc3f5e015a3ba89a74a8e55778d09195bcb71046acc62e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2abee363f4b0cd2d5dc3f5e015a3ba89a74a8e55778d09195bcb71046acc62e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2abee363f4b0cd2d5dc3f5e015a3ba89a74a8e55778d09195bcb71046acc62e5", kill_on_drop: false }`
[INFO] [stdout] 2abee363f4b0cd2d5dc3f5e015a3ba89a74a8e55778d09195bcb71046acc62e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7b711b25a520742646569b896a5cb5c740b8c4c8615c3de10ab82a3864b81810
[INFO] running `Command { std: "docker" "start" "-a" "7b711b25a520742646569b896a5cb5c740b8c4c8615c3de10ab82a3864b81810", kill_on_drop: false }`
[INFO] [stderr]    Compiling rwlock_vs_mutex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.60s
[INFO] running `Command { std: "docker" "inspect" "7b711b25a520742646569b896a5cb5c740b8c4c8615c3de10ab82a3864b81810", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b711b25a520742646569b896a5cb5c740b8c4c8615c3de10ab82a3864b81810", kill_on_drop: false }`
[INFO] [stdout] 7b711b25a520742646569b896a5cb5c740b8c4c8615c3de10ab82a3864b81810
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bde332c1f50f59dd3caeafebfc06bd572adb75a4774763752c7aded7210c7e12
[INFO] running `Command { std: "docker" "start" "-a" "bde332c1f50f59dd3caeafebfc06bd572adb75a4774763752c7aded7210c7e12", kill_on_drop: false }`
[INFO] [stderr]    Compiling rwlock_vs_mutex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "bde332c1f50f59dd3caeafebfc06bd572adb75a4774763752c7aded7210c7e12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bde332c1f50f59dd3caeafebfc06bd572adb75a4774763752c7aded7210c7e12", kill_on_drop: false }`
[INFO] [stdout] bde332c1f50f59dd3caeafebfc06bd572adb75a4774763752c7aded7210c7e12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 28ae357ffc91b6b969a36a078d82584295eb4eb5e1cfd44acd8d990843711535
[INFO] running `Command { std: "docker" "start" "-a" "28ae357ffc91b6b969a36a078d82584295eb4eb5e1cfd44acd8d990843711535", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.25s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rwlock_vs_mutex-750d7775c85511cf)
[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" "28ae357ffc91b6b969a36a078d82584295eb4eb5e1cfd44acd8d990843711535", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28ae357ffc91b6b969a36a078d82584295eb4eb5e1cfd44acd8d990843711535", kill_on_drop: false }`
[INFO] [stdout] 28ae357ffc91b6b969a36a078d82584295eb4eb5e1cfd44acd8d990843711535