[INFO] fetching crate waitcache 0.1.2...
[INFO] testing waitcache-0.1.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate waitcache 0.1.2 into /workspace/builds/worker-44/source
[INFO] validating manifest of crates.io crate waitcache 0.1.2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate waitcache 0.1.2
[INFO] finished tweaking crates.io crate waitcache 0.1.2
[INFO] tweaked toml for crates.io crate waitcache 0.1.2 written to /workspace/builds/worker-44/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ba184e98f87049bb4ed0eb6cf423c92f870923ad988ca5916cb6b886e22e426
[INFO] running `Command { std: "docker" "start" "-a" "1ba184e98f87049bb4ed0eb6cf423c92f870923ad988ca5916cb6b886e22e426", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ba184e98f87049bb4ed0eb6cf423c92f870923ad988ca5916cb6b886e22e426", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ba184e98f87049bb4ed0eb6cf423c92f870923ad988ca5916cb6b886e22e426", kill_on_drop: false }`
[INFO] [stdout] 1ba184e98f87049bb4ed0eb6cf423c92f870923ad988ca5916cb6b886e22e426
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19ea64d18a55a48ed11d02556368f0ffbb0e324deeeda1eb51ff9da32add7f9f
[INFO] running `Command { std: "docker" "start" "-a" "19ea64d18a55a48ed11d02556368f0ffbb0e324deeeda1eb51ff9da32add7f9f", kill_on_drop: false }`
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling waitcell v0.4.0
[INFO] [stderr]    Compiling dashmap v4.0.2
[INFO] [stderr]    Compiling waitcache v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.49s
[INFO] running `Command { std: "docker" "inspect" "19ea64d18a55a48ed11d02556368f0ffbb0e324deeeda1eb51ff9da32add7f9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19ea64d18a55a48ed11d02556368f0ffbb0e324deeeda1eb51ff9da32add7f9f", kill_on_drop: false }`
[INFO] [stdout] 19ea64d18a55a48ed11d02556368f0ffbb0e324deeeda1eb51ff9da32add7f9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5892932bd6e513b9271f8313f5df39a36da5da7e1fcb429e44836cd5692e4509
[INFO] running `Command { std: "docker" "start" "-a" "5892932bd6e513b9271f8313f5df39a36da5da7e1fcb429e44836cd5692e4509", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling waitcache v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `Command { std: "docker" "inspect" "5892932bd6e513b9271f8313f5df39a36da5da7e1fcb429e44836cd5692e4509", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5892932bd6e513b9271f8313f5df39a36da5da7e1fcb429e44836cd5692e4509", kill_on_drop: false }`
[INFO] [stdout] 5892932bd6e513b9271f8313f5df39a36da5da7e1fcb429e44836cd5692e4509
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0df65949238962ece0f1e3c597fa0977cd14f177dd7df45e8f182315ad4f408b
[INFO] running `Command { std: "docker" "start" "-a" "0df65949238962ece0f1e3c597fa0977cd14f177dd7df45e8f182315ad4f408b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.37s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/waitcache-2448009ab8c9412e)
[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] [stderr]    Doc-tests waitcache
[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" "0df65949238962ece0f1e3c597fa0977cd14f177dd7df45e8f182315ad4f408b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0df65949238962ece0f1e3c597fa0977cd14f177dd7df45e8f182315ad4f408b", kill_on_drop: false }`
[INFO] [stdout] 0df65949238962ece0f1e3c597fa0977cd14f177dd7df45e8f182315ad4f408b