[INFO] cloning repository https://github.com/timwee/adventofcode2021_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/timwee/adventofcode2021_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimwee%2Fadventofcode2021_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimwee%2Fadventofcode2021_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 60eb5fb62cdaabd0a84266fbf23ef55ab390cd51
[INFO] documenting timwee/adventofcode2021_rust 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%2Ftimwee%2Fadventofcode2021_rust" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/timwee/adventofcode2021_rust 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/timwee/adventofcode2021_rust
[INFO] finished tweaking git repo https://github.com/timwee/adventofcode2021_rust
[INFO] tweaked toml for git repo https://github.com/timwee/adventofcode2021_rust written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/timwee/adventofcode2021_rust 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]  Downloading crates ...
[INFO] [stderr]   Downloaded itertools-num v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] dc7508ee174b5872d4525df676fc1221f5dfd325ae8d39bd6dfc672cb1b19fc1
[INFO] running `Command { std: "docker" "start" "-a" "dc7508ee174b5872d4525df676fc1221f5dfd325ae8d39bd6dfc672cb1b19fc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc7508ee174b5872d4525df676fc1221f5dfd325ae8d39bd6dfc672cb1b19fc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc7508ee174b5872d4525df676fc1221f5dfd325ae8d39bd6dfc672cb1b19fc1", kill_on_drop: false }`
[INFO] [stdout] dc7508ee174b5872d4525df676fc1221f5dfd325ae8d39bd6dfc672cb1b19fc1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 4b9af324e138f1e1a05f005fb90d995caf63cbc5101e24b22b629cc3b6a6f610
[INFO] running `Command { std: "docker" "start" "-a" "4b9af324e138f1e1a05f005fb90d995caf63cbc5101e24b22b629cc3b6a6f610", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]    Compiling circular-queue v0.2.6
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking itertools-num v0.1.3
[INFO] [stderr]     Checking ndarray v0.15.4
[INFO] [stderr]     Checking adventofcode2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting adventofcode2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not document `adventofcode2021`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name day4 src/bin/day4.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=f381100c00c95d9f -L dependency=/opt/rustwide/target/debug/deps --extern adventofcode2021=/opt/rustwide/target/debug/deps/libadventofcode2021-5800d3473af38f4c.rmeta --extern circular_queue=/opt/rustwide/target/debug/deps/libcircular_queue-945ae646d35b002f.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-768244cffa2ddad5.rmeta --extern itertools_num=/opt/rustwide/target/debug/deps/libitertools_num-db8016c3db156e0e.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-1479f2b7adeaa2b6.rmeta --extern ndarray=/opt/rustwide/target/debug/deps/libndarray-26f5dec4a096cb32.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-01d9c5dc0d72cf1f.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" "4b9af324e138f1e1a05f005fb90d995caf63cbc5101e24b22b629cc3b6a6f610", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b9af324e138f1e1a05f005fb90d995caf63cbc5101e24b22b629cc3b6a6f610", kill_on_drop: false }`
[INFO] [stdout] 4b9af324e138f1e1a05f005fb90d995caf63cbc5101e24b22b629cc3b6a6f610