[INFO] cloning repository https://github.com/Tomboyo/mastermind-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Tomboyo/mastermind-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTomboyo%2Fmastermind-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTomboyo%2Fmastermind-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 661e9094d94f411f7a48668425128f79ab36dd74
[INFO] documenting Tomboyo/mastermind-rust against 1.75.0 for beta-1.76-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTomboyo%2Fmastermind-rust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Tomboyo/mastermind-rust on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Tomboyo/mastermind-rust
[INFO] finished tweaking git repo https://github.com/Tomboyo/mastermind-rust
[INFO] tweaked toml for git repo https://github.com/Tomboyo/mastermind-rust written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Tomboyo/mastermind-rust 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fe2624ec1d2b140bd966a904f1ebc92f1e4a1a50684da53fe39abfd43fe02ffd
[INFO] running `Command { std: "docker" "start" "-a" "fe2624ec1d2b140bd966a904f1ebc92f1e4a1a50684da53fe39abfd43fe02ffd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fe2624ec1d2b140bd966a904f1ebc92f1e4a1a50684da53fe39abfd43fe02ffd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe2624ec1d2b140bd966a904f1ebc92f1e4a1a50684da53fe39abfd43fe02ffd", kill_on_drop: false }`
[INFO] [stdout] fe2624ec1d2b140bd966a904f1ebc92f1e4a1a50684da53fe39abfd43fe02ffd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 314a727260dca076810144c5821c653886b36919a50b66c89900050ee270529f
[INFO] running `Command { std: "docker" "start" "-a" "314a727260dca076810144c5821c653886b36919a50b66c89900050ee270529f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]  Documenting mastermind 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:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![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 `mastermind`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2018 --crate-type bin --crate-name mastermind 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=3866d0cf2efbb874 -L dependency=/opt/rustwide/target/debug/deps --extern clap=/opt/rustwide/target/debug/deps/libclap-5f1cd5d8d748912a.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-5450847586d9fab0.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-2371ecb4bd2c66f2.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "314a727260dca076810144c5821c653886b36919a50b66c89900050ee270529f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "314a727260dca076810144c5821c653886b36919a50b66c89900050ee270529f", kill_on_drop: false }`
[INFO] [stdout] 314a727260dca076810144c5821c653886b36919a50b66c89900050ee270529f
[INFO] documenting Tomboyo/mastermind-rust against beta-2023-12-22 for beta-1.76-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTomboyo%2Fmastermind-rust" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Tomboyo/mastermind-rust on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Tomboyo/mastermind-rust
[INFO] finished tweaking git repo https://github.com/Tomboyo/mastermind-rust
[INFO] tweaked toml for git repo https://github.com/Tomboyo/mastermind-rust written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Tomboyo/mastermind-rust 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" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e14a8779c7383d7766676e09283ff530c8646926c85dd02c55f88bc0ec5686a3
[INFO] running `Command { std: "docker" "start" "-a" "e14a8779c7383d7766676e09283ff530c8646926c85dd02c55f88bc0ec5686a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e14a8779c7383d7766676e09283ff530c8646926c85dd02c55f88bc0ec5686a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e14a8779c7383d7766676e09283ff530c8646926c85dd02c55f88bc0ec5686a3", kill_on_drop: false }`
[INFO] [stdout] e14a8779c7383d7766676e09283ff530c8646926c85dd02c55f88bc0ec5686a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7719b6a0a32f2922e941155e145409551b8814953a16db8042dec2b1037bdec
[INFO] running `Command { std: "docker" "start" "-a" "a7719b6a0a32f2922e941155e145409551b8814953a16db8042dec2b1037bdec", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]  Documenting mastermind v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 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 `mastermind`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2018 --crate-type bin --crate-name mastermind 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=ac5acc122a41daec -L dependency=/opt/rustwide/target/debug/deps --extern clap=/opt/rustwide/target/debug/deps/libclap-56678d9f42502613.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-653ae78d534264ba.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-a60712c1d5604e64.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "a7719b6a0a32f2922e941155e145409551b8814953a16db8042dec2b1037bdec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7719b6a0a32f2922e941155e145409551b8814953a16db8042dec2b1037bdec", kill_on_drop: false }`
[INFO] [stdout] a7719b6a0a32f2922e941155e145409551b8814953a16db8042dec2b1037bdec
