[INFO] cloning repository https://github.com/OwenTuz/advent-of-code-2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/OwenTuz/advent-of-code-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOwenTuz%2Fadvent-of-code-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOwenTuz%2Fadvent-of-code-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c17957964f99458c2a5084d2fa615f1ab87b9925
[INFO] documenting OwenTuz/advent-of-code-2020 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOwenTuz%2Fadvent-of-code-2020" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/OwenTuz/advent-of-code-2020 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/OwenTuz/advent-of-code-2020
[INFO] finished tweaking git repo https://github.com/OwenTuz/advent-of-code-2020
[INFO] tweaked toml for git repo https://github.com/OwenTuz/advent-of-code-2020 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/OwenTuz/advent-of-code-2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded simple-error v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 91c87bb58f74275257f17d069eb060e4a0e92f061c86187918c9161c92d7b980
[INFO] running `Command { std: "docker" "start" "-a" "91c87bb58f74275257f17d069eb060e4a0e92f061c86187918c9161c92d7b980", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91c87bb58f74275257f17d069eb060e4a0e92f061c86187918c9161c92d7b980", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91c87bb58f74275257f17d069eb060e4a0e92f061c86187918c9161c92d7b980", kill_on_drop: false }`
[INFO] [stdout] 91c87bb58f74275257f17d069eb060e4a0e92f061c86187918c9161c92d7b980
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "RUSTDOCFLAGS=--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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f0445257b8df01328431d7b1d27d664f2538e02f47891270260907d2de387fa7
[INFO] running `Command { std: "docker" "start" "-a" "f0445257b8df01328431d7b1d27d664f2538e02f47891270260907d2de387fa7", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking simple-error v0.2.2
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking advent-of-code-2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting advent-of-code-2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not document `advent-of-code-2020`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name day12 src/bin/day12/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=45d3a09a181872a7 -L dependency=/opt/rustwide/target/debug/deps --extern util=/opt/rustwide/target/debug/deps/libutil-0d653a5c3eaf7e45.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-31732f101c7334d9.rmeta --extern simple_error=/opt/rustwide/target/debug/deps/libsimple_error-72a954289cf12ba2.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f0445257b8df01328431d7b1d27d664f2538e02f47891270260907d2de387fa7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0445257b8df01328431d7b1d27d664f2538e02f47891270260907d2de387fa7", kill_on_drop: false }`
[INFO] [stdout] f0445257b8df01328431d7b1d27d664f2538e02f47891270260907d2de387fa7