[INFO] cloning repository https://github.com/nkoppel/OptimalWordleSolver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nkoppel/OptimalWordleSolver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnkoppel%2FOptimalWordleSolver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnkoppel%2FOptimalWordleSolver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4a135519e7b128df3774c40bc69fe3fab43b21bc
[INFO] documenting nkoppel/OptimalWordleSolver against 1.69.0 for beta-1.70-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnkoppel%2FOptimalWordleSolver" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nkoppel/OptimalWordleSolver on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nkoppel/OptimalWordleSolver
[INFO] finished tweaking git repo https://github.com/nkoppel/OptimalWordleSolver
[INFO] tweaked toml for git repo https://github.com/nkoppel/OptimalWordleSolver written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/nkoppel/OptimalWordleSolver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 76c689e7f31d5908656c7df9f8af0565fb817f5861b019fc8ca40a72f5eaf671
[INFO] running `Command { std: "docker" "start" "-a" "76c689e7f31d5908656c7df9f8af0565fb817f5861b019fc8ca40a72f5eaf671", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76c689e7f31d5908656c7df9f8af0565fb817f5861b019fc8ca40a72f5eaf671", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76c689e7f31d5908656c7df9f8af0565fb817f5861b019fc8ca40a72f5eaf671", kill_on_drop: false }`
[INFO] [stdout] 76c689e7f31d5908656c7df9f8af0565fb817f5861b019fc8ca40a72f5eaf671
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 245ec73b2eb908479d907c31b87e0dd737259c6825cc564dd655eb0efe0a072c
[INFO] running `Command { std: "docker" "start" "-a" "245ec73b2eb908479d907c31b87e0dd737259c6825cc564dd655eb0efe0a072c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]  Documenting wordle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(test)]
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `wordle`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name wordle src/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=f5f9bdeb1c0d7aca -L dependency=/opt/rustwide/target/debug/deps --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-9c7d51f549cf58b7.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-f96639a131613547.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-bb799cd218d5c5e9.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "245ec73b2eb908479d907c31b87e0dd737259c6825cc564dd655eb0efe0a072c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "245ec73b2eb908479d907c31b87e0dd737259c6825cc564dd655eb0efe0a072c", kill_on_drop: false }`
[INFO] [stdout] 245ec73b2eb908479d907c31b87e0dd737259c6825cc564dd655eb0efe0a072c
