[INFO] cloning repository https://github.com/HooniusDev/lokathor_rl_tutorial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HooniusDev/lokathor_rl_tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHooniusDev%2Flokathor_rl_tutorial", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHooniusDev%2Flokathor_rl_tutorial'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 736371ebf60a5fd1dbc1b7d35abf603705441a08
[INFO] documenting HooniusDev/lokathor_rl_tutorial against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHooniusDev%2Flokathor_rl_tutorial" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/HooniusDev/lokathor_rl_tutorial on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/HooniusDev/lokathor_rl_tutorial
[INFO] finished tweaking git repo https://github.com/HooniusDev/lokathor_rl_tutorial
[INFO] tweaked toml for git repo https://github.com/HooniusDev/lokathor_rl_tutorial written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/HooniusDev/lokathor_rl_tutorial already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cgl v0.2.2
[INFO] [stderr]   Downloaded winit v0.13.1
[INFO] [stderr]   Downloaded x11-dl v2.18.0
[INFO] [stderr]   Downloaded gleam v0.5.1
[INFO] [stderr]   Downloaded glutin v0.15.0
[INFO] [stderr]   Downloaded retro-pixel v0.3.0
[INFO] [stderr]   Downloaded dwarf-term v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e165bd096a2a30c4050992e6dff4cb05813801143e41108dbaf774a9abe52d7e
[INFO] running `Command { std: "docker" "start" "-a" "e165bd096a2a30c4050992e6dff4cb05813801143e41108dbaf774a9abe52d7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e165bd096a2a30c4050992e6dff4cb05813801143e41108dbaf774a9abe52d7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e165bd096a2a30c4050992e6dff4cb05813801143e41108dbaf774a9abe52d7e", kill_on_drop: false }`
[INFO] [stdout] e165bd096a2a30c4050992e6dff4cb05813801143e41108dbaf774a9abe52d7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f3d7019d2f0e42f4a09b8eeccb7b7a8b6c21e3ca638fa4cb6fbe18980f7a514
[INFO] running `Command { std: "docker" "start" "-a" "6f3d7019d2f0e42f4a09b8eeccb7b7a8b6c21e3ca638fa4cb6fbe18980f7a514", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.0.3
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]    Compiling cc v1.0.17
[INFO] [stderr]     Checking lazy_static v1.0.1
[INFO] [stderr]    Compiling khronos_api v2.2.0
[INFO] [stderr]    Compiling cfg-if v0.1.3
[INFO] [stderr]     Checking token_store v0.1.2
[INFO] [stderr]    Compiling pkg-config v0.3.11
[INFO] [stderr]     Checking remove_dir_all v0.5.1
[INFO] [stderr]     Checking retro-pixel v0.3.0
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling log v0.4.2
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/retro-pixel-0.3.0/src/lib.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | #![feature(stdsimd)]
[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 compile `retro-pixel` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "6f3d7019d2f0e42f4a09b8eeccb7b7a8b6c21e3ca638fa4cb6fbe18980f7a514", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f3d7019d2f0e42f4a09b8eeccb7b7a8b6c21e3ca638fa4cb6fbe18980f7a514", kill_on_drop: false }`
[INFO] [stdout] 6f3d7019d2f0e42f4a09b8eeccb7b7a8b6c21e3ca638fa4cb6fbe18980f7a514