[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] 4dd9f25b8d9b69f110eb9b7dc9ba3286f12a2a3f
[INFO] checking js2xxx/ferroc against master#b44e14f762fd4062faeba97f8f2bc470298ec1ac for pr-135331
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjs2xxx%2Fferroc" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/js2xxx/ferroc on toolchain b44e14f762fd4062faeba97f8f2bc470298ec1ac
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b44e14f762fd4062faeba97f8f2bc470298ec1ac" "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-6-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" "+b44e14f762fd4062faeba97f8f2bc470298ec1ac" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crabgrind v0.1.11
[INFO] [stderr]   Downloaded array-macro v2.1.8
[INFO] [stderr]   Downloaded cbindgen v0.27.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+b44e14f762fd4062faeba97f8f2bc470298ec1ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 27e9e31b0682ebb2809d4df44cdb15f193e26acd101722100eeb6a4d64ab4c54
[INFO] running `Command { std: "docker" "start" "-a" "27e9e31b0682ebb2809d4df44cdb15f193e26acd101722100eeb6a4d64ab4c54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27e9e31b0682ebb2809d4df44cdb15f193e26acd101722100eeb6a4d64ab4c54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27e9e31b0682ebb2809d4df44cdb15f193e26acd101722100eeb6a4d64ab4c54", kill_on_drop: false }`
[INFO] [stdout] 27e9e31b0682ebb2809d4df44cdb15f193e26acd101722100eeb6a4d64ab4c54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+b44e14f762fd4062faeba97f8f2bc470298ec1ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7160dcf091b1380c3636ca8a5a8e83f5dfb34dd1a971f5fd30d89e34851f043e
[INFO] running `Command { std: "docker" "start" "-a" "7160dcf091b1380c3636ca8a5a8e83f5dfb34dd1a971f5fd30d89e34851f043e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling ferroc v1.0.0-pre.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking array-macro v2.1.8
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]     Checking fastrand v2.3.0
[INFO] [stderr]     Checking scoped-tls v1.0.1
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling jobserver v0.1.32
[INFO] [stderr]     Checking memmap2 v0.9.5
[INFO] [stderr]     Checking errno v0.3.10
[INFO] [stderr]    Compiling syn v2.0.95
[INFO] [stderr]    Compiling cc v1.2.7
[INFO] [stderr]    Compiling libfuzzer-sys v0.4.8
[INFO] [stderr]    Compiling ctor v0.2.9
[INFO] [stderr]    Compiling derive_arbitrary v1.4.1
[INFO] [stderr]     Checking arbitrary v1.4.1
[INFO] [stderr]     Checking ferroc-fuzz v0.0.0 (/opt/rustwide/workdir/fuzz)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.60s
[INFO] running `Command { std: "docker" "inspect" "7160dcf091b1380c3636ca8a5a8e83f5dfb34dd1a971f5fd30d89e34851f043e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7160dcf091b1380c3636ca8a5a8e83f5dfb34dd1a971f5fd30d89e34851f043e", kill_on_drop: false }`
[INFO] [stdout] 7160dcf091b1380c3636ca8a5a8e83f5dfb34dd1a971f5fd30d89e34851f043e