[INFO] fetching crate mtag 0.5.1...
[INFO] testing mtag-0.5.1 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate mtag 0.5.1 into /workspace/builds/worker-21/source
[INFO] validating manifest of crates.io crate mtag 0.5.1 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mtag 0.5.1
[INFO] finished tweaking crates.io crate mtag 0.5.1
[INFO] tweaked toml for crates.io crate mtag 0.5.1 written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] crate crates.io crate mtag 0.5.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3f49e170e2f6ef5436e10a297f9a063d0f7d1bca9019b6e445669281a275c022
[INFO] running `Command { std: "docker" "start" "-a" "3f49e170e2f6ef5436e10a297f9a063d0f7d1bca9019b6e445669281a275c022", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f49e170e2f6ef5436e10a297f9a063d0f7d1bca9019b6e445669281a275c022", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f49e170e2f6ef5436e10a297f9a063d0f7d1bca9019b6e445669281a275c022", kill_on_drop: false }`
[INFO] [stdout] 3f49e170e2f6ef5436e10a297f9a063d0f7d1bca9019b6e445669281a275c022
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 796c402300a068c2a8b303d44d5bd8e9e4ecbfcef8fe25ab9ea56888dee6d88f
[INFO] running `Command { std: "docker" "start" "-a" "796c402300a068c2a8b303d44d5bd8e9e4ecbfcef8fe25ab9ea56888dee6d88f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling anyhow v1.0.52
[INFO] [stderr]    Compiling mp4ameta_proc v0.6.0
[INFO] [stderr]    Compiling wild v2.0.4
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling mp4ameta v0.11.0
[INFO] [stderr]    Compiling os_str_bytes v6.0.0
[INFO] [stderr]    Compiling terminal_size v0.1.17
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling textwrap v0.14.2
[INFO] [stderr]    Compiling clap v3.0.5
[INFO] [stderr]    Compiling clap_complete v3.0.2
[INFO] [stderr]    Compiling mtag v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.81s
[INFO] running `Command { std: "docker" "inspect" "796c402300a068c2a8b303d44d5bd8e9e4ecbfcef8fe25ab9ea56888dee6d88f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "796c402300a068c2a8b303d44d5bd8e9e4ecbfcef8fe25ab9ea56888dee6d88f", kill_on_drop: false }`
[INFO] [stdout] 796c402300a068c2a8b303d44d5bd8e9e4ecbfcef8fe25ab9ea56888dee6d88f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1c067fad6ce0f0df35e703a98572cfc83c345a7503114e13321feeca95acfac
[INFO] running `Command { std: "docker" "start" "-a" "a1c067fad6ce0f0df35e703a98572cfc83c345a7503114e13321feeca95acfac", kill_on_drop: false }`
[INFO] [stderr]    Compiling mtag v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `Command { std: "docker" "inspect" "a1c067fad6ce0f0df35e703a98572cfc83c345a7503114e13321feeca95acfac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1c067fad6ce0f0df35e703a98572cfc83c345a7503114e13321feeca95acfac", kill_on_drop: false }`
[INFO] [stdout] a1c067fad6ce0f0df35e703a98572cfc83c345a7503114e13321feeca95acfac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 515a811c43db39d834736b68f9374f018dd35f6483f9bf5bb8329e45ac560dba
[INFO] running `Command { std: "docker" "start" "-a" "515a811c43db39d834736b68f9374f018dd35f6483f9bf5bb8329e45ac560dba", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mtag-0af1214a1c79f441)
[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" "515a811c43db39d834736b68f9374f018dd35f6483f9bf5bb8329e45ac560dba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "515a811c43db39d834736b68f9374f018dd35f6483f9bf5bb8329e45ac560dba", kill_on_drop: false }`
[INFO] [stdout] 515a811c43db39d834736b68f9374f018dd35f6483f9bf5bb8329e45ac560dba