[INFO] fetching crate scut 1.0.0...
[INFO] testing scut-1.0.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate scut 1.0.0 into /workspace/builds/worker-18/source
[INFO] validating manifest of crates.io crate scut 1.0.0 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 scut 1.0.0
[INFO] finished tweaking crates.io crate scut 1.0.0
[INFO] tweaked toml for crates.io crate scut 1.0.0 written to /workspace/builds/worker-18/source/Cargo.toml
[INFO] crate crates.io crate scut 1.0.0 already has a lockfile, it will not be regenerated
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded argh_derive v0.1.4
[INFO] [stderr]   Downloaded argh_shared v0.1.4
[INFO] [stderr]   Downloaded open v1.7.0
[INFO] [stderr]   Downloaded argh v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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] bdae98aaa1cc14d264bc9cf8858cc0f6590a7c1cd0cb55185124e0d31322bae0
[INFO] running `Command { std: "docker" "start" "-a" "bdae98aaa1cc14d264bc9cf8858cc0f6590a7c1cd0cb55185124e0d31322bae0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bdae98aaa1cc14d264bc9cf8858cc0f6590a7c1cd0cb55185124e0d31322bae0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdae98aaa1cc14d264bc9cf8858cc0f6590a7c1cd0cb55185124e0d31322bae0", kill_on_drop: false }`
[INFO] [stdout] bdae98aaa1cc14d264bc9cf8858cc0f6590a7c1cd0cb55185124e0d31322bae0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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] 3888a27dbd6646501c680036bfeb7296e44e4056fecaf21457cdafc600f69d7a
[INFO] running `Command { std: "docker" "start" "-a" "3888a27dbd6646501c680036bfeb7296e44e4056fecaf21457cdafc600f69d7a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling argh_shared v0.1.4
[INFO] [stderr]    Compiling urlencoding v1.3.3
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.5
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]    Compiling tinyvec v1.2.0
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling unicode-normalization v0.1.17
[INFO] [stderr]    Compiling which v4.1.0
[INFO] [stderr]    Compiling dirs-sys v0.3.6
[INFO] [stderr]    Compiling dirs v3.0.2
[INFO] [stderr]    Compiling open v1.7.0
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling argh_derive v0.1.4
[INFO] [stderr]    Compiling argh v0.1.4
[INFO] [stderr]    Compiling scut v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.44s
[INFO] running `Command { std: "docker" "inspect" "3888a27dbd6646501c680036bfeb7296e44e4056fecaf21457cdafc600f69d7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3888a27dbd6646501c680036bfeb7296e44e4056fecaf21457cdafc600f69d7a", kill_on_drop: false }`
[INFO] [stdout] 3888a27dbd6646501c680036bfeb7296e44e4056fecaf21457cdafc600f69d7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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] 0529425ceb1c9cee5613c79b5908ccb6a24b94a19526ee3e1a5bba92efa57d83
[INFO] running `Command { std: "docker" "start" "-a" "0529425ceb1c9cee5613c79b5908ccb6a24b94a19526ee3e1a5bba92efa57d83", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling scut v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "0529425ceb1c9cee5613c79b5908ccb6a24b94a19526ee3e1a5bba92efa57d83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0529425ceb1c9cee5613c79b5908ccb6a24b94a19526ee3e1a5bba92efa57d83", kill_on_drop: false }`
[INFO] [stdout] 0529425ceb1c9cee5613c79b5908ccb6a24b94a19526ee3e1a5bba92efa57d83
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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] ab2fe6ad1d1cd7b8bcfb7e6d5e74adfb6ffe3036733629f39c8a1a474153398e
[INFO] running `Command { std: "docker" "start" "-a" "ab2fe6ad1d1cd7b8bcfb7e6d5e74adfb6ffe3036733629f39c8a1a474153398e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/scut-2a2e146f54038d3f)
[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" "ab2fe6ad1d1cd7b8bcfb7e6d5e74adfb6ffe3036733629f39c8a1a474153398e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab2fe6ad1d1cd7b8bcfb7e6d5e74adfb6ffe3036733629f39c8a1a474153398e", kill_on_drop: false }`
[INFO] [stdout] ab2fe6ad1d1cd7b8bcfb7e6d5e74adfb6ffe3036733629f39c8a1a474153398e