[INFO] cloning repository https://github.com/J4m3s00/skat
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/J4m3s00/skat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJ4m3s00%2Fskat", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJ4m3s00%2Fskat'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5bc746fdacfc6bb89ed354f34ba2d2ffcb9dadaa
[INFO] documenting J4m3s00/skat against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJ4m3s00%2Fskat" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/J4m3s00/skat on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/J4m3s00/skat
[INFO] finished tweaking git repo https://github.com/J4m3s00/skat
[INFO] tweaked toml for git repo https://github.com/J4m3s00/skat written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/J4m3s00/skat already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bae2f739d78f6e3fcd9760f209d60802a701de1fd2f1e66a7df09466b613c336
[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" "bae2f739d78f6e3fcd9760f209d60802a701de1fd2f1e66a7df09466b613c336", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bae2f739d78f6e3fcd9760f209d60802a701de1fd2f1e66a7df09466b613c336", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bae2f739d78f6e3fcd9760f209d60802a701de1fd2f1e66a7df09466b613c336", kill_on_drop: false }`
[INFO] [stdout] bae2f739d78f6e3fcd9760f209d60802a701de1fd2f1e66a7df09466b613c336
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "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] ffb52261426818bbc0b8a09d6dea654d7724da7dca1460cef4be87f6d644237e
[INFO] running `Command { std: "docker" "start" "-a" "ffb52261426818bbc0b8a09d6dea654d7724da7dca1460cef4be87f6d644237e", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]  Documenting Skat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected type, found keyword `mut`
[INFO] [stdout]   --> src/main.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 54 |     cards: mut Vec<Card>
[INFO] [stdout]    |            ^^^ expected type
[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] [stderr] error: Could not document `Skat`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name Skat src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern rand=/opt/rustwide/target/debug/deps/librand-d15b9a670d076d79.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "ffb52261426818bbc0b8a09d6dea654d7724da7dca1460cef4be87f6d644237e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffb52261426818bbc0b8a09d6dea654d7724da7dca1460cef4be87f6d644237e", kill_on_drop: false }`
[INFO] [stdout] ffb52261426818bbc0b8a09d6dea654d7724da7dca1460cef4be87f6d644237e