[INFO] cloning repository https://github.com/lecoqjacob/rougelike_rust_specs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lecoqjacob/rougelike_rust_specs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flecoqjacob%2Frougelike_rust_specs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flecoqjacob%2Frougelike_rust_specs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 17566595f7885fc300e6ef3c85d455bd2024b229
[INFO] documenting lecoqjacob/rougelike_rust_specs/17566595f7885fc300e6ef3c85d455bd2024b229 against 1.86.0 for beta-1.87-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flecoqjacob%2Frougelike_rust_specs" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lecoqjacob/rougelike_rust_specs on toolchain 1.86.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.86.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lecoqjacob/rougelike_rust_specs
[INFO] finished tweaking git repo https://github.com/lecoqjacob/rougelike_rust_specs
[INFO] tweaked toml for git repo https://github.com/lecoqjacob/rougelike_rust_specs written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/lecoqjacob/rougelike_rust_specs 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" "+1.86.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded shred v0.12.0
[INFO] [stderr]   Downloaded extend v1.1.2
[INFO] [stderr]   Downloaded specs v0.17.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a9a7bd55709b714ce4c2c6808c26dc3de061e546f833f9f56ac4a317e5205a7c
[INFO] running `Command { std: "docker" "start" "-a" "a9a7bd55709b714ce4c2c6808c26dc3de061e546f833f9f56ac4a317e5205a7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9a7bd55709b714ce4c2c6808c26dc3de061e546f833f9f56ac4a317e5205a7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9a7bd55709b714ce4c2c6808c26dc3de061e546f833f9f56ac4a317e5205a7c", kill_on_drop: false }`
[INFO] [stdout] a9a7bd55709b714ce4c2c6808c26dc3de061e546f833f9f56ac4a317e5205a7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0378ce40c124e75e23332a6395e85726ab886024b3fb296a5403801aa415f652
[INFO] running `Command { std: "docker" "start" "-a" "0378ce40c124e75e23332a6395e85726ab886024b3fb296a5403801aa415f652", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.119
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[INFO] [stderr]     Checking wayland-commons v0.28.6
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[INFO] [stderr]     Checking hibitset v0.6.3
[INFO] [stderr]     Checking wayland-cursor v0.28.6
[INFO] [stderr]     Checking wayland-egl v0.28.6
[INFO] [stderr]    Compiling specs-derive v0.4.1
[INFO] [stderr]    Compiling extend v1.1.2
[INFO] [stderr]     Checking bracket-geometry v0.8.3
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking bracket-color v0.8.2
[INFO] [stderr]     Checking specs v0.17.0
[INFO] [stderr]     Checking bracket-random v0.8.2
[INFO] [stderr]     Checking bracket-noise v0.8.2
[INFO] [stderr]     Checking bracket-algorithm-traits v0.8.2
[INFO] [stderr]     Checking bracket-pathfinding v0.8.4
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[INFO] [stderr]     Checking bracket-lib v0.8.1
[INFO] [stderr]     Checking rltk v0.8.1
[INFO] [stderr]  Documenting rouge_like_game 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:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(stmt_expr_attributes)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(let_chains)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `rouge_like_game`
[INFO] running `Command { std: "docker" "inspect" "0378ce40c124e75e23332a6395e85726ab886024b3fb296a5403801aa415f652", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0378ce40c124e75e23332a6395e85726ab886024b3fb296a5403801aa415f652", kill_on_drop: false }`
[INFO] [stdout] 0378ce40c124e75e23332a6395e85726ab886024b3fb296a5403801aa415f652