[INFO] fetching crate retain_mut 0.1.6...
[INFO] testing retain_mut-0.1.6 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate retain_mut 0.1.6 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate retain_mut 0.1.6 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 retain_mut 0.1.6
[INFO] finished tweaking crates.io crate retain_mut 0.1.6
[INFO] tweaked toml for crates.io crate retain_mut 0.1.6 written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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" "+beta-2022-02-22" "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-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] 7f8e52fb8567c011e1e60f7f0b1fc3c22b32cec6f1bbdb97088b7476a0546bfc
[INFO] running `Command { std: "docker" "start" "-a" "7f8e52fb8567c011e1e60f7f0b1fc3c22b32cec6f1bbdb97088b7476a0546bfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f8e52fb8567c011e1e60f7f0b1fc3c22b32cec6f1bbdb97088b7476a0546bfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f8e52fb8567c011e1e60f7f0b1fc3c22b32cec6f1bbdb97088b7476a0546bfc", kill_on_drop: false }`
[INFO] [stdout] 7f8e52fb8567c011e1e60f7f0b1fc3c22b32cec6f1bbdb97088b7476a0546bfc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] b9b87abd2552e9cd650a119ae1e568c887ea11f8e17ded0b1d01d0b95e4f1eae
[INFO] running `Command { std: "docker" "start" "-a" "b9b87abd2552e9cd650a119ae1e568c887ea11f8e17ded0b1d01d0b95e4f1eae", kill_on_drop: false }`
[INFO] [stderr]    Compiling retain_mut v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "b9b87abd2552e9cd650a119ae1e568c887ea11f8e17ded0b1d01d0b95e4f1eae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9b87abd2552e9cd650a119ae1e568c887ea11f8e17ded0b1d01d0b95e4f1eae", kill_on_drop: false }`
[INFO] [stdout] b9b87abd2552e9cd650a119ae1e568c887ea11f8e17ded0b1d01d0b95e4f1eae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] 1e86c3eaa2645c74041d681ea08645b44742c3d36c5c2ef1d4d5ab9f2354a9d2
[INFO] running `Command { std: "docker" "start" "-a" "1e86c3eaa2645c74041d681ea08645b44742c3d36c5c2ef1d4d5ab9f2354a9d2", kill_on_drop: false }`
[INFO] [stderr]    Compiling retain_mut v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "1e86c3eaa2645c74041d681ea08645b44742c3d36c5c2ef1d4d5ab9f2354a9d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e86c3eaa2645c74041d681ea08645b44742c3d36c5c2ef1d4d5ab9f2354a9d2", kill_on_drop: false }`
[INFO] [stdout] 1e86c3eaa2645c74041d681ea08645b44742c3d36c5c2ef1d4d5ab9f2354a9d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] a12bfd9a44727f708f15fc7756e29cd6033d2e16b18b194cdc06720d17a568d0
[INFO] running `Command { std: "docker" "start" "-a" "a12bfd9a44727f708f15fc7756e29cd6033d2e16b18b194cdc06720d17a568d0", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/retain_mut-495d0940d4d13fdc)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests retain_mut
[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] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 24) ... ok
[INFO] [stdout] test src/lib.rs - (line 33) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.26s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a12bfd9a44727f708f15fc7756e29cd6033d2e16b18b194cdc06720d17a568d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a12bfd9a44727f708f15fc7756e29cd6033d2e16b18b194cdc06720d17a568d0", kill_on_drop: false }`
[INFO] [stdout] a12bfd9a44727f708f15fc7756e29cd6033d2e16b18b194cdc06720d17a568d0