[INFO] cloning repository https://github.com/helloooooo/book_algorithm_solutions
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/helloooooo/book_algorithm_solutions" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhelloooooo%2Fbook_algorithm_solutions", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhelloooooo%2Fbook_algorithm_solutions'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a1bf0f675c5a113d761929c7fc3224cf8ee359b3
[INFO] documenting helloooooo/book_algorithm_solutions against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhelloooooo%2Fbook_algorithm_solutions" "/workspace/builds/worker-30/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-30/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/helloooooo/book_algorithm_solutions on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/helloooooo/book_algorithm_solutions
[INFO] finished tweaking git repo https://github.com/helloooooo/book_algorithm_solutions
[INFO] tweaked toml for git repo https://github.com/helloooooo/book_algorithm_solutions written to /workspace/builds/worker-30/source/Cargo.toml
[INFO] crate git repo https://github.com/helloooooo/book_algorithm_solutions already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proconio v0.4.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47f2fc94a61eb8879848b828ec5875ec4333d5d6932315fb1d2aca24b1e0165c
[INFO] running `Command { std: "docker" "start" "-a" "47f2fc94a61eb8879848b828ec5875ec4333d5d6932315fb1d2aca24b1e0165c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47f2fc94a61eb8879848b828ec5875ec4333d5d6932315fb1d2aca24b1e0165c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47f2fc94a61eb8879848b828ec5875ec4333d5d6932315fb1d2aca24b1e0165c", kill_on_drop: false }`
[INFO] [stdout] 47f2fc94a61eb8879848b828ec5875ec4333d5d6932315fb1d2aca24b1e0165c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c2be53ed5349f00b83ad80b247a47e6213419e4220c2a9cbf1d7ba3c0786f5ec
[INFO] running `Command { std: "docker" "start" "-a" "c2be53ed5349f00b83ad80b247a47e6213419e4220c2a9cbf1d7ba3c0786f5ec", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking proconio v0.4.3
[INFO] [stderr]  Documenting book_algorithm_solutions v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not document `book_algorithm_solutions`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name 3_6 src/chapter-3/6.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=7595f0699d91f2f7 -L dependency=/opt/rustwide/target/debug/deps --extern proconio=/opt/rustwide/target/debug/deps/libproconio-9eb963011fc52028.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] running `Command { std: "docker" "inspect" "c2be53ed5349f00b83ad80b247a47e6213419e4220c2a9cbf1d7ba3c0786f5ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2be53ed5349f00b83ad80b247a47e6213419e4220c2a9cbf1d7ba3c0786f5ec", kill_on_drop: false }`
[INFO] [stdout] c2be53ed5349f00b83ad80b247a47e6213419e4220c2a9cbf1d7ba3c0786f5ec