[INFO] cloning repository https://github.com/SergeevPavel/adventofcode2019
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SergeevPavel/adventofcode2019" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSergeevPavel%2Fadventofcode2019", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSergeevPavel%2Fadventofcode2019'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 99cb7272c905ef65576518a99f5bcfdb116e6792
[INFO] documenting SergeevPavel/adventofcode2019 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSergeevPavel%2Fadventofcode2019" "/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/SergeevPavel/adventofcode2019 on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SergeevPavel/adventofcode2019
[INFO] finished tweaking git repo https://github.com/SergeevPavel/adventofcode2019
[INFO] tweaked toml for git repo https://github.com/SergeevPavel/adventofcode2019 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/SergeevPavel/adventofcode2019 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "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" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 30e0c3077e2af5fed98769d549789b2a9253a3c01c2b1750bae0f23e4136ebf2
[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" "30e0c3077e2af5fed98769d549789b2a9253a3c01c2b1750bae0f23e4136ebf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30e0c3077e2af5fed98769d549789b2a9253a3c01c2b1750bae0f23e4136ebf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30e0c3077e2af5fed98769d549789b2a9253a3c01c2b1750bae0f23e4136ebf2", kill_on_drop: false }`
[INFO] [stdout] 30e0c3077e2af5fed98769d549789b2a9253a3c01c2b1750bae0f23e4136ebf2
[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" "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" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4a038be1e7dd5ae1a86ddfdd3e852d1ae6a17f15aca6eac9a33b38ea042a3478
[INFO] running `Command { std: "docker" "start" "-a" "4a038be1e7dd5ae1a86ddfdd3e852d1ae6a17f15aca6eac9a33b38ea042a3478", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking termion v1.5.4
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]  Documenting adventofcode2019 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/day16.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 |                 (acc + v)
[INFO] [stdout]    |                 ^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `adventofcode2019`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name day2b src/day2b.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern regex=/opt/rustwide/target/debug/deps/libregex-357c088fd08b6cb2.rmeta --extern termion=/opt/rustwide/target/debug/deps/libtermion-028c548494363e96.rmeta --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "4a038be1e7dd5ae1a86ddfdd3e852d1ae6a17f15aca6eac9a33b38ea042a3478", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a038be1e7dd5ae1a86ddfdd3e852d1ae6a17f15aca6eac9a33b38ea042a3478", kill_on_drop: false }`
[INFO] [stdout] 4a038be1e7dd5ae1a86ddfdd3e852d1ae6a17f15aca6eac9a33b38ea042a3478