[INFO] cloning repository https://github.com/thomas-hugon/rust-advent-of-code-2021
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thomas-hugon/rust-advent-of-code-2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomas-hugon%2Frust-advent-of-code-2021", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomas-hugon%2Frust-advent-of-code-2021'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5269117999c8b056a8fa844b00423872742576c0
[INFO] documenting thomas-hugon/rust-advent-of-code-2021 against 1.66.0 for beta-1.67-rustdoc-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomas-hugon%2Frust-advent-of-code-2021" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thomas-hugon/rust-advent-of-code-2021 on toolchain 1.66.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.66.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/thomas-hugon/rust-advent-of-code-2021
[INFO] finished tweaking git repo https://github.com/thomas-hugon/rust-advent-of-code-2021
[INFO] tweaked toml for git repo https://github.com/thomas-hugon/rust-advent-of-code-2021 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/thomas-hugon/rust-advent-of-code-2021 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" "+1.66.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pathfinding v3.0.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:9042d5c95763f71f7b0904716b98ccadf9fc47b0f382ee962aaaed2ac70c9b8d" "/opt/rustwide/cargo-home/bin/cargo" "+1.66.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ba13ea53d7a184376a27f81eaf214f7dbb8d6f7304bf3181e6742c9924f8ce2e
[INFO] running `Command { std: "docker" "start" "-a" "ba13ea53d7a184376a27f81eaf214f7dbb8d6f7304bf3181e6742c9924f8ce2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ba13ea53d7a184376a27f81eaf214f7dbb8d6f7304bf3181e6742c9924f8ce2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba13ea53d7a184376a27f81eaf214f7dbb8d6f7304bf3181e6742c9924f8ce2e", kill_on_drop: false }`
[INFO] [stdout] ba13ea53d7a184376a27f81eaf214f7dbb8d6f7304bf3181e6742c9924f8ce2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-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@sha256:9042d5c95763f71f7b0904716b98ccadf9fc47b0f382ee962aaaed2ac70c9b8d" "/opt/rustwide/cargo-home/bin/cargo" "+1.66.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e31e221c356136edc0e5b04842016830e7b3b14df83e104e29a8f2cf852776c
[INFO] running `Command { std: "docker" "start" "-a" "8e31e221c356136edc0e5b04842016830e7b3b14df83e104e29a8f2cf852776c", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking fixedbitset v0.4.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking nom v7.1.2
[INFO] [stderr]     Checking integer-sqrt v0.1.5
[INFO] [stderr]     Checking pathfinding v3.0.5
[INFO] [stderr]  Documenting rust-advent-of-code-2021 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not document `rust-advent-of-code-2021`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name day4 src/day4/bin.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=519d33014fd5af57 -L dependency=/opt/rustwide/target/debug/deps --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-2c9c9908553ee7c5.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-f9fb165a3945a826.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-d449b0eb080f20c1.rmeta --extern nom=/opt/rustwide/target/debug/deps/libnom-22181c0271e0ab0a.rmeta --extern pathfinding=/opt/rustwide/target/debug/deps/libpathfinding-647307e061c3eea2.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-e4aa1871bec98b05.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" "8e31e221c356136edc0e5b04842016830e7b3b14df83e104e29a8f2cf852776c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e31e221c356136edc0e5b04842016830e7b3b14df83e104e29a8f2cf852776c", kill_on_drop: false }`
[INFO] [stdout] 8e31e221c356136edc0e5b04842016830e7b3b14df83e104e29a8f2cf852776c