[INFO] fetching crate midi-event 0.2.1...
[INFO] testing midi-event-0.2.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate midi-event 0.2.1 into /workspace/builds/worker-30/source
[INFO] validating manifest of crates.io crate midi-event 0.2.1 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 midi-event 0.2.1
[INFO] finished tweaking crates.io crate midi-event 0.2.1
[INFO] tweaked toml for crates.io crate midi-event 0.2.1 written to /workspace/builds/worker-30/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded arbitrary v0.4.7
[INFO] [stderr]   Downloaded derive_arbitrary v0.4.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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] 00823eb65b2f8c7d823a64130ecbb37223b7b2f8a57c6d8dac81d768b5a7a1b9
[INFO] running `Command { std: "docker" "start" "-a" "00823eb65b2f8c7d823a64130ecbb37223b7b2f8a57c6d8dac81d768b5a7a1b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00823eb65b2f8c7d823a64130ecbb37223b7b2f8a57c6d8dac81d768b5a7a1b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00823eb65b2f8c7d823a64130ecbb37223b7b2f8a57c6d8dac81d768b5a7a1b9", kill_on_drop: false }`
[INFO] [stdout] 00823eb65b2f8c7d823a64130ecbb37223b7b2f8a57c6d8dac81d768b5a7a1b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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] 8bce1dcda0d1546971cf8d13bb9de8c0bc62af9f4a2f0596985dbc12f07ed8ba
[INFO] running `Command { std: "docker" "start" "-a" "8bce1dcda0d1546971cf8d13bb9de8c0bc62af9f4a2f0596985dbc12f07ed8ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling midi-event v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `Command { std: "docker" "inspect" "8bce1dcda0d1546971cf8d13bb9de8c0bc62af9f4a2f0596985dbc12f07ed8ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bce1dcda0d1546971cf8d13bb9de8c0bc62af9f4a2f0596985dbc12f07ed8ba", kill_on_drop: false }`
[INFO] [stdout] 8bce1dcda0d1546971cf8d13bb9de8c0bc62af9f4a2f0596985dbc12f07ed8ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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] 1c09ccdf6ebb0727e574a41346031243c0456d89da4141cb4b33ad22cd00bd0e
[INFO] running `Command { std: "docker" "start" "-a" "1c09ccdf6ebb0727e574a41346031243c0456d89da4141cb4b33ad22cd00bd0e", kill_on_drop: false }`
[INFO] [stderr]    Compiling midi-event v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "1c09ccdf6ebb0727e574a41346031243c0456d89da4141cb4b33ad22cd00bd0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c09ccdf6ebb0727e574a41346031243c0456d89da4141cb4b33ad22cd00bd0e", kill_on_drop: false }`
[INFO] [stdout] 1c09ccdf6ebb0727e574a41346031243c0456d89da4141cb4b33ad22cd00bd0e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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] 2f5c010aea70dfd5cb3c6eb091f253e5fc64da9b9888b67ac2165a8f4d400cb7
[INFO] running `Command { std: "docker" "start" "-a" "2f5c010aea70dfd5cb3c6eb091f253e5fc64da9b9888b67ac2165a8f4d400cb7", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/midi_event-f4c801609233a8ae)
[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 midi-event
[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" "2f5c010aea70dfd5cb3c6eb091f253e5fc64da9b9888b67ac2165a8f4d400cb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f5c010aea70dfd5cb3c6eb091f253e5fc64da9b9888b67ac2165a8f4d400cb7", kill_on_drop: false }`
[INFO] [stdout] 2f5c010aea70dfd5cb3c6eb091f253e5fc64da9b9888b67ac2165a8f4d400cb7