[INFO] cloning repository https://github.com/edosrecki/chip8-interpreter-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/edosrecki/chip8-interpreter-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fedosrecki%2Fchip8-interpreter-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fedosrecki%2Fchip8-interpreter-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9ba29a6ac25e57a38eff1a014c73b3c971c17b61
[INFO] documenting edosrecki/chip8-interpreter-rust 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%2Fedosrecki%2Fchip8-interpreter-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/edosrecki/chip8-interpreter-rust 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/edosrecki/chip8-interpreter-rust
[INFO] finished tweaking git repo https://github.com/edosrecki/chip8-interpreter-rust
[INFO] tweaked toml for git repo https://github.com/edosrecki/chip8-interpreter-rust written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/edosrecki/chip8-interpreter-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" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sdl2 v0.34.3
[INFO] [stderr]   Downloaded fps_clock v2.0.0
[INFO] [stderr]   Downloaded speculate v0.1.2
[INFO] [stderr]   Downloaded env_logger v0.8.1
[INFO] [stderr]   Downloaded sdl2-sys v0.34.3
[INFO] [stderr]   Downloaded c_vec v1.3.3
[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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a2d8dea4af087fe030b1a64ee6d9d818a07d39c456a79c63667852baf8c6bab
[INFO] running `Command { std: "docker" "start" "-a" "4a2d8dea4af087fe030b1a64ee6d9d818a07d39c456a79c63667852baf8c6bab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a2d8dea4af087fe030b1a64ee6d9d818a07d39c456a79c63667852baf8c6bab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a2d8dea4af087fe030b1a64ee6d9d818a07d39c456a79c63667852baf8c6bab", kill_on_drop: false }`
[INFO] [stdout] 4a2d8dea4af087fe030b1a64ee6d9d818a07d39c456a79c63667852baf8c6bab
[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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/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] 3f0ea821c4805d6a900fec5773847dc2f8c97545cb4b294fc2da9c1b04b39a37
[INFO] running `Command { std: "docker" "start" "-a" "3f0ea821c4805d6a900fec5773847dc2f8c97545cb4b294fc2da9c1b04b39a37", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling version-compare v0.0.10
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking regex-syntax v0.6.20
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling sdl2 v0.34.3
[INFO] [stderr]     Checking c_vec v1.3.3
[INFO] [stderr]     Checking humantime v2.0.1
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking fps_clock v2.0.0
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking aho-corasick v0.7.14
[INFO] [stderr]    Compiling sdl2-sys v0.34.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking regex v1.4.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking env_logger v0.8.1
[INFO] [stderr]  Documenting chip8-interpreter-rust 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(map_first_last)]
[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 `chip8-interpreter-rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name chip8_interpreter_rust 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=5b46c5794b9926fa -L dependency=/opt/rustwide/target/debug/deps --extern clap=/opt/rustwide/target/debug/deps/libclap-b3b42fd9a3bb4940.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-db546f06b5c8380c.rmeta --extern fps_clock=/opt/rustwide/target/debug/deps/libfps_clock-d0c26d1de177ae5e.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-9c7d51f549cf58b7.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-380e63647726915e.rmeta --extern maplit=/opt/rustwide/target/debug/deps/libmaplit-62b69cc89278a314.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-7924bfc8d60e87b9.rmeta --extern sdl2=/opt/rustwide/target/debug/deps/libsdl2-16db0b150e755965.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "3f0ea821c4805d6a900fec5773847dc2f8c97545cb4b294fc2da9c1b04b39a37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f0ea821c4805d6a900fec5773847dc2f8c97545cb4b294fc2da9c1b04b39a37", kill_on_drop: false }`
[INFO] [stdout] 3f0ea821c4805d6a900fec5773847dc2f8c97545cb4b294fc2da9c1b04b39a37
