[INFO] fetching crate musical_keyboard 0.6.0...
[INFO] testing musical_keyboard-0.6.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate musical_keyboard 0.6.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate musical_keyboard 0.6.0 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 musical_keyboard 0.6.0
[INFO] finished tweaking crates.io crate musical_keyboard 0.6.0
[INFO] tweaked toml for crates.io crate musical_keyboard 0.6.0 written to /workspace/builds/worker-11/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] bd91efab0894336d7260d7705811a6de25ed6e5d1b5e2ab82f13395220d11acd
[INFO] running `Command { std: "docker" "start" "-a" "bd91efab0894336d7260d7705811a6de25ed6e5d1b5e2ab82f13395220d11acd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd91efab0894336d7260d7705811a6de25ed6e5d1b5e2ab82f13395220d11acd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd91efab0894336d7260d7705811a6de25ed6e5d1b5e2ab82f13395220d11acd", kill_on_drop: false }`
[INFO] [stdout] bd91efab0894336d7260d7705811a6de25ed6e5d1b5e2ab82f13395220d11acd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 90b4640683aa8c1feafd5fd67a3644dbb4c5d473033f391049bc998b8d73a329
[INFO] running `Command { std: "docker" "start" "-a" "90b4640683aa8c1feafd5fd67a3644dbb4c5d473033f391049bc998b8d73a329", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling pitch_calc v0.11.1
[INFO] [stderr]    Compiling musical_keyboard v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.11s
[INFO] running `Command { std: "docker" "inspect" "90b4640683aa8c1feafd5fd67a3644dbb4c5d473033f391049bc998b8d73a329", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90b4640683aa8c1feafd5fd67a3644dbb4c5d473033f391049bc998b8d73a329", kill_on_drop: false }`
[INFO] [stdout] 90b4640683aa8c1feafd5fd67a3644dbb4c5d473033f391049bc998b8d73a329
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 8dca3a656c639f1dfc02de079ede3824dcf4cc0c11333a06700ccb8cee714757
[INFO] running `Command { std: "docker" "start" "-a" "8dca3a656c639f1dfc02de079ede3824dcf4cc0c11333a06700ccb8cee714757", kill_on_drop: false }`
[INFO] [stderr]    Compiling musical_keyboard v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "8dca3a656c639f1dfc02de079ede3824dcf4cc0c11333a06700ccb8cee714757", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8dca3a656c639f1dfc02de079ede3824dcf4cc0c11333a06700ccb8cee714757", kill_on_drop: false }`
[INFO] [stdout] 8dca3a656c639f1dfc02de079ede3824dcf4cc0c11333a06700ccb8cee714757
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 23e9e01a19b76ce488b9cdce8910ef6897277e65dc91d1d84d1dfaabb8c96a79
[INFO] running `Command { std: "docker" "start" "-a" "23e9e01a19b76ce488b9cdce8910ef6897277e65dc91d1d84d1dfaabb8c96a79", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/musical_keyboard-d8f41c81fc8a98e6)
[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 musical_keyboard
[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" "23e9e01a19b76ce488b9cdce8910ef6897277e65dc91d1d84d1dfaabb8c96a79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23e9e01a19b76ce488b9cdce8910ef6897277e65dc91d1d84d1dfaabb8c96a79", kill_on_drop: false }`
[INFO] [stdout] 23e9e01a19b76ce488b9cdce8910ef6897277e65dc91d1d84d1dfaabb8c96a79