[INFO] cloning repository https://github.com/sonerich/connect-4
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sonerich/connect-4" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsonerich%2Fconnect-4", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsonerich%2Fconnect-4'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 009e73997f5d8fa9d19cfe09766ff56a699af53d
[INFO] documenting sonerich/connect-4 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsonerich%2Fconnect-4" "/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/sonerich/connect-4 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sonerich/connect-4
[INFO] finished tweaking git repo https://github.com/sonerich/connect-4
[INFO] tweaked toml for git repo https://github.com/sonerich/connect-4 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/sonerich/connect-4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "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-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" "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" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d6aaa1e71ca48ea30fbc8a6ccaf2cccf95a01a2ab776545cdb81fa001f2ca013
[INFO] running `Command { std: "docker" "start" "-a" "d6aaa1e71ca48ea30fbc8a6ccaf2cccf95a01a2ab776545cdb81fa001f2ca013", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6aaa1e71ca48ea30fbc8a6ccaf2cccf95a01a2ab776545cdb81fa001f2ca013", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6aaa1e71ca48ea30fbc8a6ccaf2cccf95a01a2ab776545cdb81fa001f2ca013", kill_on_drop: false }`
[INFO] [stdout] d6aaa1e71ca48ea30fbc8a6ccaf2cccf95a01a2ab776545cdb81fa001f2ca013
[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" "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" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f3afb1eb7ce06c74f2a088aa312b7f0ab811593811fc3ed4a3e5fb2a178029f
[INFO] running `Command { std: "docker" "start" "-a" "0f3afb1eb7ce06c74f2a088aa312b7f0ab811593811fc3ed4a3e5fb2a178029f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling anyhow v1.0.52
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking signal-hook v0.1.17
[INFO] [stderr]     Checking crossterm v0.17.7
[INFO] [stderr]  Documenting connect-4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking connect-4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `is_empty`
[INFO] [stdout]   --> src/array_board.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn is_empty(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't read src/bin/main.rs: No such file or directory (os error 2)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `connect-4`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name con4 src/bin/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=ce15ab7812afd795 -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-073e83245c6ea490.rmeta --extern connect4=/opt/rustwide/target/debug/deps/libconnect4-80bdabd527acc806.rmeta --extern crossterm=/opt/rustwide/target/debug/deps/libcrossterm-d4939ae44fa8574e.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "0f3afb1eb7ce06c74f2a088aa312b7f0ab811593811fc3ed4a3e5fb2a178029f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f3afb1eb7ce06c74f2a088aa312b7f0ab811593811fc3ed4a3e5fb2a178029f", kill_on_drop: false }`
[INFO] [stdout] 0f3afb1eb7ce06c74f2a088aa312b7f0ab811593811fc3ed4a3e5fb2a178029f