[INFO] cloning repository https://github.com/d-jsrsc/mgc-checker
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/d-jsrsc/mgc-checker" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fd-jsrsc%2Fmgc-checker", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fd-jsrsc%2Fmgc-checker'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 26a97154a93a6cadaa629c4dcae49e6a0e3f3036
[INFO] checking d-jsrsc/mgc-checker/26a97154a93a6cadaa629c4dcae49e6a0e3f3036 against master#0f6e1ae67854c3c44726e8376144c16b465fe7c6 for pr-129392
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fd-jsrsc%2Fmgc-checker" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/d-jsrsc/mgc-checker on toolchain 0f6e1ae67854c3c44726e8376144c16b465fe7c6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/d-jsrsc/mgc-checker
[INFO] finished tweaking git repo https://github.com/d-jsrsc/mgc-checker
[INFO] tweaked toml for git repo https://github.com/d-jsrsc/mgc-checker written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/d-jsrsc/mgc-checker already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded neon-runtime v0.9.1
[INFO] [stderr]   Downloaded neon-build v0.9.1
[INFO] [stderr]   Downloaded neon-macros v0.9.1
[INFO] [stderr]   Downloaded neon v0.9.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e4e9083bc36bb52964542ee85ec3cc3a0bf20047d5f5467b51ddfe7139dd590b
[INFO] running `Command { std: "docker" "start" "-a" "e4e9083bc36bb52964542ee85ec3cc3a0bf20047d5f5467b51ddfe7139dd590b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4e9083bc36bb52964542ee85ec3cc3a0bf20047d5f5467b51ddfe7139dd590b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4e9083bc36bb52964542ee85ec3cc3a0bf20047d5f5467b51ddfe7139dd590b", kill_on_drop: false }`
[INFO] [stdout] e4e9083bc36bb52964542ee85ec3cc3a0bf20047d5f5467b51ddfe7139dd590b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 434589f4ad7678545ea9bb1d83ce09d2f7d699e4e75e77642db416936d7bdb05
[INFO] running `Command { std: "docker" "start" "-a" "434589f4ad7678545ea9bb1d83ce09d2f7d699e4e75e77642db416936d7bdb05", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.33
[INFO] [stderr]    Compiling neon-build v0.9.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking libloading v0.6.7
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking cslice v0.2.0
[INFO] [stderr]     Checking neon-runtime v0.9.1
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]    Compiling neon v0.9.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling neon-macros v0.9.1
[INFO] [stderr]     Checking mgchecker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.89s
[INFO] running `Command { std: "docker" "inspect" "434589f4ad7678545ea9bb1d83ce09d2f7d699e4e75e77642db416936d7bdb05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "434589f4ad7678545ea9bb1d83ce09d2f7d699e4e75e77642db416936d7bdb05", kill_on_drop: false }`
[INFO] [stdout] 434589f4ad7678545ea9bb1d83ce09d2f7d699e4e75e77642db416936d7bdb05