[INFO] cloning repository https://github.com/ackxolotl/game-of-life-avx
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ackxolotl/game-of-life-avx" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fackxolotl%2Fgame-of-life-avx", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fackxolotl%2Fgame-of-life-avx'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 879c77382972dda001545cbebebb8fd6359ab88f
[INFO] documenting ackxolotl/game-of-life-avx against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fackxolotl%2Fgame-of-life-avx" "/workspace/builds/worker-68/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-68/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ackxolotl/game-of-life-avx on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ackxolotl/game-of-life-avx
[INFO] finished tweaking git repo https://github.com/ackxolotl/game-of-life-avx
[INFO] tweaked toml for git repo https://github.com/ackxolotl/game-of-life-avx written to /workspace/builds/worker-68/source/Cargo.toml
[INFO] crate git repo https://github.com/ackxolotl/game-of-life-avx already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 583a2a056e0792762c9db6b2c6b8818c8b3adf4d8129b1f02477b08bbb927bc7
[INFO] running `Command { std: "docker" "start" "-a" "583a2a056e0792762c9db6b2c6b8818c8b3adf4d8129b1f02477b08bbb927bc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "583a2a056e0792762c9db6b2c6b8818c8b3adf4d8129b1f02477b08bbb927bc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "583a2a056e0792762c9db6b2c6b8818c8b3adf4d8129b1f02477b08bbb927bc7", kill_on_drop: false }`
[INFO] [stdout] 583a2a056e0792762c9db6b2c6b8818c8b3adf4d8129b1f02477b08bbb927bc7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-68/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a620c8e8209f02b353f976f02bdcc49fe8db067dff884000537755f3ae77c453
[INFO] running `Command { std: "docker" "start" "-a" "a620c8e8209f02b353f976f02bdcc49fe8db067dff884000537755f3ae77c453", kill_on_drop: false }`
[INFO] [stderr]  Documenting game-of-life-avx 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(stdsimd)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `game-of-life-avx`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name game_of_life_avx src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "a620c8e8209f02b353f976f02bdcc49fe8db067dff884000537755f3ae77c453", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a620c8e8209f02b353f976f02bdcc49fe8db067dff884000537755f3ae77c453", kill_on_drop: false }`
[INFO] [stdout] a620c8e8209f02b353f976f02bdcc49fe8db067dff884000537755f3ae77c453
