[INFO] cloning repository https://github.com/brian-dawn/advent-of-code-2019
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/brian-dawn/advent-of-code-2019" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrian-dawn%2Fadvent-of-code-2019", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrian-dawn%2Fadvent-of-code-2019'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d5349a66c4e1572140aedec9903d50e614c8b45f
[INFO] documenting brian-dawn/advent-of-code-2019 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrian-dawn%2Fadvent-of-code-2019" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/brian-dawn/advent-of-code-2019 on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/brian-dawn/advent-of-code-2019
[INFO] finished tweaking git repo https://github.com/brian-dawn/advent-of-code-2019
[INFO] tweaked toml for git repo https://github.com/brian-dawn/advent-of-code-2019 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/brian-dawn/advent-of-code-2019 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d5b6d87fd6cae7d0d494b8f2349a6062f6daea5c60014c69f91ce2bc991be1f5
[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" "d5b6d87fd6cae7d0d494b8f2349a6062f6daea5c60014c69f91ce2bc991be1f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5b6d87fd6cae7d0d494b8f2349a6062f6daea5c60014c69f91ce2bc991be1f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5b6d87fd6cae7d0d494b8f2349a6062f6daea5c60014c69f91ce2bc991be1f5", kill_on_drop: false }`
[INFO] [stdout] d5b6d87fd6cae7d0d494b8f2349a6062f6daea5c60014c69f91ce2bc991be1f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 765a912f7f8fd4647eb7e6402c579c61f35f4d4cc7b0e9bd5a9c7012f582c5fa
[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" "765a912f7f8fd4647eb7e6402c579c61f35f4d4cc7b0e9bd5a9c7012f582c5fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]     Checking permutohedron v0.2.4
[INFO] [stderr]     Checking nom v5.0.1
[INFO] [stderr]    Compiling derive_more v0.99.2
[INFO] [stderr]  Documenting advent-of-code-2019 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: Could not document `advent-of-code-2019`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name day7 src/bin/day7.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-7e53a649ae75024f.rmeta --extern derive_more=/opt/rustwide/target/debug/deps/libderive_more-fb9e64c82816cd91.so --extern itertools=/opt/rustwide/target/debug/deps/libitertools-5ad68357c26dda65.rmeta --extern nom=/opt/rustwide/target/debug/deps/libnom-7181878a933611e1.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-37bfa6c80311b388.rmeta --extern permutohedron=/opt/rustwide/target/debug/deps/libpermutohedron-476c7da6e7614d21.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-68e53095d8962eec.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-ef03d8c34c9cc7a6.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-4e5f3e360e0c732b.rmeta --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "765a912f7f8fd4647eb7e6402c579c61f35f4d4cc7b0e9bd5a9c7012f582c5fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "765a912f7f8fd4647eb7e6402c579c61f35f4d4cc7b0e9bd5a9c7012f582c5fa", kill_on_drop: false }`
[INFO] [stdout] 765a912f7f8fd4647eb7e6402c579c61f35f4d4cc7b0e9bd5a9c7012f582c5fa