[INFO] fetching crate grace 0.1.0...
[INFO] checking grace-0.1.0 against 1.55.0 for beta-1.56-3
[INFO] extracting crate grace 0.1.0 into /workspace/builds/worker-60/source
[INFO] validating manifest of crates.io crate grace 0.1.0 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 grace 0.1.0
[INFO] finished tweaking crates.io crate grace 0.1.0
[INFO] tweaked toml for crates.io crate grace 0.1.0 written to /workspace/builds/worker-60/source/Cargo.toml
[INFO] crate crates.io crate grace 0.1.0 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 futures v0.3.8
[INFO] [stderr]   Downloaded futures-io v0.3.8
[INFO] [stderr]   Downloaded futures-core v0.3.8
[INFO] [stderr]   Downloaded smallvec v1.6.0
[INFO] [stderr]   Downloaded futures-executor v0.3.8
[INFO] [stderr]   Downloaded futures-task v0.3.8
[INFO] [stderr]   Downloaded spin v0.7.0
[INFO] [stderr]   Downloaded syn v1.0.56
[INFO] [stderr]   Downloaded futures-sink v0.3.8
[INFO] [stderr]   Downloaded futures-macro v0.3.8
[INFO] [stderr]   Downloaded futures-util v0.3.8
[INFO] [stderr]   Downloaded futures-channel v0.3.8
[INFO] [stderr]   Downloaded parking_lot_core v0.8.2
[INFO] [stderr]   Downloaded signal-stack v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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] 5a7b655448f142b6f32f6b2935616904e9dd76af9829198ceb687a41e8015143
[INFO] running `Command { std: "docker" "start" "-a" "5a7b655448f142b6f32f6b2935616904e9dd76af9829198ceb687a41e8015143", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a7b655448f142b6f32f6b2935616904e9dd76af9829198ceb687a41e8015143", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a7b655448f142b6f32f6b2935616904e9dd76af9829198ceb687a41e8015143", kill_on_drop: false }`
[INFO] [stdout] 5a7b655448f142b6f32f6b2935616904e9dd76af9829198ceb687a41e8015143
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9cd8c576e58d49a0c643c6ed9bd7e3191c5c39c6e5d6d366e600f49b1daed569
[INFO] running `Command { std: "docker" "start" "-a" "9cd8c576e58d49a0c643c6ed9bd7e3191c5c39c6e5d6d366e600f49b1daed569", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]     Checking smallvec v1.6.0
[INFO] [stderr]     Checking spin v0.7.0
[INFO] [stderr]     Checking parking_lot_core v0.8.2
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking signal-stack v0.1.0
[INFO] [stderr]     Checking grace v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.48s
[INFO] running `Command { std: "docker" "inspect" "9cd8c576e58d49a0c643c6ed9bd7e3191c5c39c6e5d6d366e600f49b1daed569", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cd8c576e58d49a0c643c6ed9bd7e3191c5c39c6e5d6d366e600f49b1daed569", kill_on_drop: false }`
[INFO] [stdout] 9cd8c576e58d49a0c643c6ed9bd7e3191c5c39c6e5d6d366e600f49b1daed569
