[INFO] fetching crate b2sum 0.4.0...
[INFO] checking b2sum-0.4.0 against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] extracting crate b2sum 0.4.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate b2sum 0.4.0 on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate b2sum 0.4.0
[INFO] finished tweaking crates.io crate b2sum 0.4.0
[INFO] tweaked toml for crates.io crate b2sum 0.4.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate b2sum 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "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 stable-eyre v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec5f0532322ce0862c1a11d347e8dfd7f17f01d9b9a856b1ef0f81c26edf772e
[INFO] running `Command { std: "docker" "start" "-a" "ec5f0532322ce0862c1a11d347e8dfd7f17f01d9b9a856b1ef0f81c26edf772e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec5f0532322ce0862c1a11d347e8dfd7f17f01d9b9a856b1ef0f81c26edf772e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec5f0532322ce0862c1a11d347e8dfd7f17f01d9b9a856b1ef0f81c26edf772e", kill_on_drop: false }`
[INFO] [stdout] ec5f0532322ce0862c1a11d347e8dfd7f17f01d9b9a856b1ef0f81c26edf772e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=forbid" "-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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52c22c71f23075fee89451b87edbce460929a59534c3792ef9f8b98e282840fd
[INFO] running `Command { std: "docker" "start" "-a" "52c22c71f23075fee89451b87edbce460929a59534c3792ef9f8b98e282840fd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling eyre v0.6.5
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking blake2b_simd v0.5.11
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]     Checking stable-eyre v0.2.2
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]     Checking serde v1.0.125
[INFO] [stderr]     Checking docopt v1.1.1
[INFO] [stderr]     Checking b2sum v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.08s
[INFO] running `Command { std: "docker" "inspect" "52c22c71f23075fee89451b87edbce460929a59534c3792ef9f8b98e282840fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52c22c71f23075fee89451b87edbce460929a59534c3792ef9f8b98e282840fd", kill_on_drop: false }`
[INFO] [stdout] 52c22c71f23075fee89451b87edbce460929a59534c3792ef9f8b98e282840fd