[INFO] cloning repository https://github.com/xu-cheng/aoc19
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xu-cheng/aoc19" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxu-cheng%2Faoc19", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxu-cheng%2Faoc19'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b55cdb344682ec680a216c6529c6087dc445591e
[INFO] documenting xu-cheng/aoc19 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%2Fxu-cheng%2Faoc19" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xu-cheng/aoc19 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/xu-cheng/aoc19
[INFO] finished tweaking git repo https://github.com/xu-cheng/aoc19
[INFO] tweaked toml for git repo https://github.com/xu-cheng/aoc19 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/xu-cheng/aoc19 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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 4c350fa3b5c09880912adef9ff5f37396fd857c1b661dac6ddbfed263843e677
[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" "4c350fa3b5c09880912adef9ff5f37396fd857c1b661dac6ddbfed263843e677", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c350fa3b5c09880912adef9ff5f37396fd857c1b661dac6ddbfed263843e677", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c350fa3b5c09880912adef9ff5f37396fd857c1b661dac6ddbfed263843e677", kill_on_drop: false }`
[INFO] [stdout] 4c350fa3b5c09880912adef9ff5f37396fd857c1b661dac6ddbfed263843e677
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 28c43b0630abef1a13dea1f59ae573375b95fe577c4d75be32444e111e1c05d9
[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" "28c43b0630abef1a13dea1f59ae573375b95fe577c4d75be32444e111e1c05d9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling anyhow v1.0.25
[INFO] [stderr]     Checking indexmap v0.4.1
[INFO] [stderr]     Checking bytecount v0.6.0
[INFO] [stderr]     Checking priority-queue v0.6.0
[INFO] [stderr]     Checking aoc2019 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting aoc2019 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: Could not document `aoc2019`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name day15 src/bin/day15.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 aoc2019=/opt/rustwide/target/debug/deps/libaoc2019-dbf6878415d24a19.rmeta --extern bytecount=/opt/rustwide/target/debug/deps/libbytecount-ed1968cf209e9e5a.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-5ad68357c26dda65.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-57a7edc7f441d44c.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-43f1eea2ef5bec7f.rmeta --extern petgraph=/opt/rustwide/target/debug/deps/libpetgraph-2849dc170b4d8716.rmeta --extern priority_queue=/opt/rustwide/target/debug/deps/libpriority_queue-a889dea5489b9e15.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-ef03d8c34c9cc7a6.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" "28c43b0630abef1a13dea1f59ae573375b95fe577c4d75be32444e111e1c05d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28c43b0630abef1a13dea1f59ae573375b95fe577c4d75be32444e111e1c05d9", kill_on_drop: false }`
[INFO] [stdout] 28c43b0630abef1a13dea1f59ae573375b95fe577c4d75be32444e111e1c05d9