[INFO] cloning repository https://github.com/tc21/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/tc21/advent-of-code-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftc21%2Fadvent-of-code-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftc21%2Fadvent-of-code-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dff6eca26073943674a4bb25b51debac7b133524
[INFO] documenting tc21/advent-of-code-2020 against 1.64.0 for beta-1.65-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftc21%2Fadvent-of-code-2020" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tc21/advent-of-code-2020 on toolchain 1.64.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.64.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tc21/advent-of-code-2020
[INFO] finished tweaking git repo https://github.com/tc21/advent-of-code-2020
[INFO] tweaked toml for git repo https://github.com/tc21/advent-of-code-2020 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/tc21/advent-of-code-2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.64.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+1.64.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b35d9aeca8ce1463a5c107dbc404fe6c2786a89ad6dd12ccda8f9633c6f2172
[INFO] running `Command { std: "docker" "start" "-a" "0b35d9aeca8ce1463a5c107dbc404fe6c2786a89ad6dd12ccda8f9633c6f2172", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b35d9aeca8ce1463a5c107dbc404fe6c2786a89ad6dd12ccda8f9633c6f2172", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b35d9aeca8ce1463a5c107dbc404fe6c2786a89ad6dd12ccda8f9633c6f2172", kill_on_drop: false }`
[INFO] [stdout] 0b35d9aeca8ce1463a5c107dbc404fe6c2786a89ad6dd12ccda8f9633c6f2172
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+1.64.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b49cc786527c52da37ebc50f3b9301f2480b1f41a9cc8d54d922b9dab1b13795
[INFO] running `Command { std: "docker" "start" "-a" "b49cc786527c52da37ebc50f3b9301f2480b1f41a9cc8d54d922b9dab1b13795", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking regex v1.4.2
[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 4_password_processing src/bin/4-password-processing/main.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=4bd7acfa613cfb7b -L dependency=/opt/rustwide/target/debug/deps --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-e3d47af013355851.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-3e2fcc0c55ebf374.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] [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 11_seating_system src/bin/11-seating-system/main.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=1b784800cf42c3ae -L dependency=/opt/rustwide/target/debug/deps --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-e3d47af013355851.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-3e2fcc0c55ebf374.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "b49cc786527c52da37ebc50f3b9301f2480b1f41a9cc8d54d922b9dab1b13795", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b49cc786527c52da37ebc50f3b9301f2480b1f41a9cc8d54d922b9dab1b13795", kill_on_drop: false }`
[INFO] [stdout] b49cc786527c52da37ebc50f3b9301f2480b1f41a9cc8d54d922b9dab1b13795