[INFO] updating cached repository https://github.com/troiganto/aoc-2018
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b8682e88ef160f3fdef8c660ff27bebfd1254735
[INFO] documenting troiganto/aoc-2018 against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftroiganto%2Faoc-2018" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/troiganto/aoc-2018 on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/troiganto/aoc-2018
[INFO] finished tweaking git repo https://github.com/troiganto/aoc-2018
[INFO] tweaked toml for git repo https://github.com/troiganto/aoc-2018 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/troiganto/aoc-2018 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 077ab52f62d2c745add67977eef28b3e935d3729039cc37d17ca981b414113e2
[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" "077ab52f62d2c745add67977eef28b3e935d3729039cc37d17ca981b414113e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "077ab52f62d2c745add67977eef28b3e935d3729039cc37d17ca981b414113e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "077ab52f62d2c745add67977eef28b3e935d3729039cc37d17ca981b414113e2", kill_on_drop: false }`
[INFO] [stdout] 077ab52f62d2c745add67977eef28b3e935d3729039cc37d17ca981b414113e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f19ef6318c0341985cfbfd8646423e43012474a10df1e3ccc314d4c6fb1159f
[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" "0f19ef6318c0341985cfbfd8646423e43012474a10df1e3ccc314d4c6fb1159f", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]     Checking boolinator v2.4.0
[INFO] [stderr]     Checking intrusive-collections v0.7.8
[INFO] [stderr]     Checking arrayvec v0.4.8
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking deflate v0.7.19
[INFO] [stderr]     Checking inflate v0.4.3
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]     Checking nom v4.1.1
[INFO] [stderr]     Checking num-iter v0.1.37
[INFO] [stderr]     Checking num-rational v0.2.1
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]    Compiling num-derive v0.2.3
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking tiff v0.2.1
[INFO] [stderr]     Checking image v0.20.1
[INFO] [stderr]  Documenting aoc-2018 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: Could not document `aoc-2018`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name task39 src/bin/task39.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern boolinator=/opt/rustwide/target/debug/deps/libboolinator-dec57df724fdba8f.rmeta --extern image=/opt/rustwide/target/debug/deps/libimage-6436ffab037f4fe7.rmeta --extern intrusive_collections=/opt/rustwide/target/debug/deps/libintrusive_collections-b4f9cfbd7e44651f.rmeta --extern nom=/opt/rustwide/target/debug/deps/libnom-572a5d792c5b7580.rmeta --cap-lints=forbid` (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" "0f19ef6318c0341985cfbfd8646423e43012474a10df1e3ccc314d4c6fb1159f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f19ef6318c0341985cfbfd8646423e43012474a10df1e3ccc314d4c6fb1159f", kill_on_drop: false }`
[INFO] [stdout] 0f19ef6318c0341985cfbfd8646423e43012474a10df1e3ccc314d4c6fb1159f