[INFO] cloning repository https://github.com/CableSynth/aoc_2020_fourth_day
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CableSynth/aoc_2020_fourth_day" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCableSynth%2Faoc_2020_fourth_day", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCableSynth%2Faoc_2020_fourth_day'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ff63a27268fe8292de8b66c0abf23d44a833771f
[INFO] checking CableSynth/aoc_2020_fourth_day against try#b0d0ea232bdae12fa8da8491a91ae1db029990ef for pr-84037
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCableSynth%2Faoc_2020_fourth_day" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CableSynth/aoc_2020_fourth_day on toolchain b0d0ea232bdae12fa8da8491a91ae1db029990ef
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CableSynth/aoc_2020_fourth_day
[INFO] finished tweaking git repo https://github.com/CableSynth/aoc_2020_fourth_day
[INFO] tweaked toml for git repo https://github.com/CableSynth/aoc_2020_fourth_day written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/CableSynth/aoc_2020_fourth_day already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47896d94488f2a972dc793507a26af1f3389c3266dc6fe05317ea1db2b2bc57a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "47896d94488f2a972dc793507a26af1f3389c3266dc6fe05317ea1db2b2bc57a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47896d94488f2a972dc793507a26af1f3389c3266dc6fe05317ea1db2b2bc57a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47896d94488f2a972dc793507a26af1f3389c3266dc6fe05317ea1db2b2bc57a", kill_on_drop: false }`
[INFO] [stdout] 47896d94488f2a972dc793507a26af1f3389c3266dc6fe05317ea1db2b2bc57a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] de3c7f4342c9eb579fe639880629ed77699af3791f4443b71d598d7bae19357a
[INFO] running `Command { std: "docker" "start" "-a" "de3c7f4342c9eb579fe639880629ed77699af3791f4443b71d598d7bae19357a", kill_on_drop: false }`
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking fourth_day v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.91s
[INFO] running `Command { std: "docker" "inspect" "de3c7f4342c9eb579fe639880629ed77699af3791f4443b71d598d7bae19357a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de3c7f4342c9eb579fe639880629ed77699af3791f4443b71d598d7bae19357a", kill_on_drop: false }`
[INFO] [stdout] de3c7f4342c9eb579fe639880629ed77699af3791f4443b71d598d7bae19357a