[INFO] cloning repository https://github.com/nextlevelprogrammer/project_euler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nextlevelprogrammer/project_euler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnextlevelprogrammer%2Fproject_euler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnextlevelprogrammer%2Fproject_euler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 47369f5df05c759b4145af92c96e3574a21a5968
[INFO] documenting nextlevelprogrammer/project_euler 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%2Fnextlevelprogrammer%2Fproject_euler" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nextlevelprogrammer/project_euler 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/nextlevelprogrammer/project_euler
[INFO] finished tweaking git repo https://github.com/nextlevelprogrammer/project_euler
[INFO] tweaked toml for git repo https://github.com/nextlevelprogrammer/project_euler written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/nextlevelprogrammer/project_euler 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] df19cbbfb5ad7a2f927d562f3c69137274c7e418e634004f43c4e4de10926cd3
[INFO] running `Command { std: "docker" "start" "-a" "df19cbbfb5ad7a2f927d562f3c69137274c7e418e634004f43c4e4de10926cd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df19cbbfb5ad7a2f927d562f3c69137274c7e418e634004f43c4e4de10926cd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df19cbbfb5ad7a2f927d562f3c69137274c7e418e634004f43c4e4de10926cd3", kill_on_drop: false }`
[INFO] [stdout] df19cbbfb5ad7a2f927d562f3c69137274c7e418e634004f43c4e4de10926cd3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 0edbe224a63bcb73572a500011f709da305b2fd2423c1f8ff4e76e25ed18d0a3
[INFO] running `Command { std: "docker" "start" "-a" "0edbe224a63bcb73572a500011f709da305b2fd2423c1f8ff4e76e25ed18d0a3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking numbers v0.1.0 (/opt/rustwide/workdir/dep/numbers)
[INFO] [stderr]     Checking prime v0.1.0 (/opt/rustwide/workdir/dep/prime)
[INFO] [stderr]  Documenting project_euler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking project_euler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `numbers::is_perfect_square`
[INFO] [stdout]  --> src/bin/p09.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use numbers::is_perfect_square;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^ no `is_perfect_square` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `project_euler`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name p09 src/bin/p09.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=39ed69002bc93a2a -L dependency=/opt/rustwide/target/debug/deps --extern numbers=/opt/rustwide/target/debug/deps/libnumbers-9b2b8cedf6634a6b.rmeta --extern prime=/opt/rustwide/target/debug/deps/libprime-fd7a4e45d764e693.rmeta --extern res=/opt/rustwide/target/debug/deps/libres-671b82c58a28f6c5.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "0edbe224a63bcb73572a500011f709da305b2fd2423c1f8ff4e76e25ed18d0a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0edbe224a63bcb73572a500011f709da305b2fd2423c1f8ff4e76e25ed18d0a3", kill_on_drop: false }`
[INFO] [stdout] 0edbe224a63bcb73572a500011f709da305b2fd2423c1f8ff4e76e25ed18d0a3