[INFO] fetching crate mut 0.0.0...
[INFO] testing mut-0.0.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate mut 0.0.0 into /workspace/builds/worker-36/source
[INFO] validating manifest of crates.io crate mut 0.0.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mut 0.0.0
[INFO] finished tweaking crates.io crate mut 0.0.0
[INFO] tweaked toml for crates.io crate mut 0.0.0 written to /workspace/builds/worker-36/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 808d3859bb3bd0dc42ede9654b704d7763a93ecef7319f88c719edd03fa25f93
[INFO] running `Command { std: "docker" "start" "-a" "808d3859bb3bd0dc42ede9654b704d7763a93ecef7319f88c719edd03fa25f93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "808d3859bb3bd0dc42ede9654b704d7763a93ecef7319f88c719edd03fa25f93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "808d3859bb3bd0dc42ede9654b704d7763a93ecef7319f88c719edd03fa25f93", kill_on_drop: false }`
[INFO] [stdout] 808d3859bb3bd0dc42ede9654b704d7763a93ecef7319f88c719edd03fa25f93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 96786a2803e442ffb3e3a418d215bf43903927deb9affcf9cdd5364fd642d19e
[INFO] running `Command { std: "docker" "start" "-a" "96786a2803e442ffb3e3a418d215bf43903927deb9affcf9cdd5364fd642d19e", kill_on_drop: false }`
[INFO] [stderr]    Compiling mut v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "96786a2803e442ffb3e3a418d215bf43903927deb9affcf9cdd5364fd642d19e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96786a2803e442ffb3e3a418d215bf43903927deb9affcf9cdd5364fd642d19e", kill_on_drop: false }`
[INFO] [stdout] 96786a2803e442ffb3e3a418d215bf43903927deb9affcf9cdd5364fd642d19e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1bf9edaec751384d71646d67ed6222a59f09763f0ba369254fbe3135f5a09b93
[INFO] running `Command { std: "docker" "start" "-a" "1bf9edaec751384d71646d67ed6222a59f09763f0ba369254fbe3135f5a09b93", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling mut v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.85s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/mut-ab69b58eb34274a5)
[INFO] running `Command { std: "docker" "inspect" "1bf9edaec751384d71646d67ed6222a59f09763f0ba369254fbe3135f5a09b93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bf9edaec751384d71646d67ed6222a59f09763f0ba369254fbe3135f5a09b93", kill_on_drop: false }`
[INFO] [stdout] 1bf9edaec751384d71646d67ed6222a59f09763f0ba369254fbe3135f5a09b93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4e414c39ea930cbc48c49d31cb8aa1b5eb092e3d40f4c9e5344521a633ceeed1
[INFO] running `Command { std: "docker" "start" "-a" "4e414c39ea930cbc48c49d31cb8aa1b5eb092e3d40f4c9e5344521a633ceeed1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.47s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mut-ab69b58eb34274a5)
[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 mut
[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" "4e414c39ea930cbc48c49d31cb8aa1b5eb092e3d40f4c9e5344521a633ceeed1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e414c39ea930cbc48c49d31cb8aa1b5eb092e3d40f4c9e5344521a633ceeed1", kill_on_drop: false }`
[INFO] [stdout] 4e414c39ea930cbc48c49d31cb8aa1b5eb092e3d40f4c9e5344521a633ceeed1