[INFO] cloning repository https://github.com/js2xxx/ferroc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/js2xxx/ferroc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjs2xxx%2Fferroc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjs2xxx%2Fferroc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0aee5fd0d47e1ee74b81b4951b6a964fa91e7283
[INFO] checking js2xxx/ferroc against master#16b569057e4d1591b4bee05f10df34000308dedc for pr-127827
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjs2xxx%2Fferroc" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/js2xxx/ferroc on toolchain 16b569057e4d1591b4bee05f10df34000308dedc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+16b569057e4d1591b4bee05f10df34000308dedc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/js2xxx/ferroc
[INFO] finished tweaking git repo https://github.com/js2xxx/ferroc
[INFO] tweaked toml for git repo https://github.com/js2xxx/ferroc written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/js2xxx/ferroc 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" "+16b569057e4d1591b4bee05f10df34000308dedc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded array-macro v2.1.8
[INFO] [stderr]   Downloaded crabgrind v0.1.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+16b569057e4d1591b4bee05f10df34000308dedc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 64f0f028273b25eca40552b37b5bc7c1a8a18befb6bad85a8a26286d9aeb1b72
[INFO] running `Command { std: "docker" "start" "-a" "64f0f028273b25eca40552b37b5bc7c1a8a18befb6bad85a8a26286d9aeb1b72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64f0f028273b25eca40552b37b5bc7c1a8a18befb6bad85a8a26286d9aeb1b72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64f0f028273b25eca40552b37b5bc7c1a8a18befb6bad85a8a26286d9aeb1b72", kill_on_drop: false }`
[INFO] [stdout] 64f0f028273b25eca40552b37b5bc7c1a8a18befb6bad85a8a26286d9aeb1b72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+16b569057e4d1591b4bee05f10df34000308dedc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d516ab53fd1e9a104f9beb407fa9d7fb81d01e1d11d601198404c76830847e8
[INFO] running `Command { std: "docker" "start" "-a" "8d516ab53fd1e9a104f9beb407fa9d7fb81d01e1d11d601198404c76830847e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling ferroc v1.0.0-pre.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking array-macro v2.1.8
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]     Checking fastrand v2.1.0
[INFO] [stderr]     Checking memmap2 v0.9.4
[INFO] [stderr]    Compiling jobserver v0.1.31
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling cc v1.1.0
[INFO] [stderr]    Compiling syn v2.0.70
[INFO] [stderr]    Compiling libfuzzer-sys v0.4.7
[INFO] [stderr]    Compiling ctor v0.2.8
[INFO] [stderr]    Compiling derive_arbitrary v1.3.2
[INFO] [stderr]     Checking arbitrary v1.3.2
[INFO] [stderr]     Checking ferroc-fuzz v0.0.0 (/opt/rustwide/workdir/fuzz)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.87s
[INFO] running `Command { std: "docker" "inspect" "8d516ab53fd1e9a104f9beb407fa9d7fb81d01e1d11d601198404c76830847e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d516ab53fd1e9a104f9beb407fa9d7fb81d01e1d11d601198404c76830847e8", kill_on_drop: false }`
[INFO] [stdout] 8d516ab53fd1e9a104f9beb407fa9d7fb81d01e1d11d601198404c76830847e8