[INFO] fetching crate monochord 0.1.1...
[INFO] testing monochord-0.1.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate monochord 0.1.1 into /workspace/builds/worker-58/source
[INFO] validating manifest of crates.io crate monochord 0.1.1 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 monochord 0.1.1
[INFO] finished tweaking crates.io crate monochord 0.1.1
[INFO] tweaked toml for crates.io crate monochord 0.1.1 written to /workspace/builds/worker-58/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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] 2b5f2cc85b9de67c6b00a4a5c098bfa502e406c6d5b0c1360aa60b3424b676aa
[INFO] running `Command { std: "docker" "start" "-a" "2b5f2cc85b9de67c6b00a4a5c098bfa502e406c6d5b0c1360aa60b3424b676aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b5f2cc85b9de67c6b00a4a5c098bfa502e406c6d5b0c1360aa60b3424b676aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b5f2cc85b9de67c6b00a4a5c098bfa502e406c6d5b0c1360aa60b3424b676aa", kill_on_drop: false }`
[INFO] [stdout] 2b5f2cc85b9de67c6b00a4a5c098bfa502e406c6d5b0c1360aa60b3424b676aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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] 2920fa7389a93eceedb5468a45886630583e7ea48f6baac4d119d770d39dc591
[INFO] running `Command { std: "docker" "start" "-a" "2920fa7389a93eceedb5468a45886630583e7ea48f6baac4d119d770d39dc591", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling monochord v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.27s
[INFO] running `Command { std: "docker" "inspect" "2920fa7389a93eceedb5468a45886630583e7ea48f6baac4d119d770d39dc591", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2920fa7389a93eceedb5468a45886630583e7ea48f6baac4d119d770d39dc591", kill_on_drop: false }`
[INFO] [stdout] 2920fa7389a93eceedb5468a45886630583e7ea48f6baac4d119d770d39dc591
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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] c75f88a039ec51eafdce8a02b9a79bb53b6bf68a0d8e3a4651d703ded8884d11
[INFO] running `Command { std: "docker" "start" "-a" "c75f88a039ec51eafdce8a02b9a79bb53b6bf68a0d8e3a4651d703ded8884d11", kill_on_drop: false }`
[INFO] [stderr]    Compiling monochord v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "c75f88a039ec51eafdce8a02b9a79bb53b6bf68a0d8e3a4651d703ded8884d11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c75f88a039ec51eafdce8a02b9a79bb53b6bf68a0d8e3a4651d703ded8884d11", kill_on_drop: false }`
[INFO] [stdout] c75f88a039ec51eafdce8a02b9a79bb53b6bf68a0d8e3a4651d703ded8884d11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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] c3ec79045632ab47218b712085adee029dba5faacdb0f79b49362c3b8e789f37
[INFO] running `Command { std: "docker" "start" "-a" "c3ec79045632ab47218b712085adee029dba5faacdb0f79b49362c3b8e789f37", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/monochord-7b5740c5fbc765d0)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::hz_div_hz ... ok
[INFO] [stdout] test tests::cents_ratio ... ok
[INFO] [stderr]    Doc-tests monochord
[INFO] [stdout] test tuning::tests::cyclic_tuning ... ok
[INFO] [stdout] test tests::hz_plus_cents ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 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 src/lib.rs - Hz (line 15) ... ok
[INFO] [stdout] test src/tuning.rs - tuning::CyclicTuning (line 98) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.45s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c3ec79045632ab47218b712085adee029dba5faacdb0f79b49362c3b8e789f37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3ec79045632ab47218b712085adee029dba5faacdb0f79b49362c3b8e789f37", kill_on_drop: false }`
[INFO] [stdout] c3ec79045632ab47218b712085adee029dba5faacdb0f79b49362c3b8e789f37