[INFO] fetching crate heph-inbox 0.2.1...
[INFO] documenting heph-inbox-0.2.1 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate heph-inbox 0.2.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate heph-inbox 0.2.1 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 crates.io crate heph-inbox 0.2.1
[INFO] finished tweaking crates.io crate heph-inbox 0.2.1
[INFO] tweaked toml for crates.io crate heph-inbox 0.2.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 0c8f52b2aea2f69999bb799a8798de56e8f4f777429e8aa4a17d26ecb5af845e
[INFO] running `Command { std: "docker" "start" "-a" "0c8f52b2aea2f69999bb799a8798de56e8f4f777429e8aa4a17d26ecb5af845e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c8f52b2aea2f69999bb799a8798de56e8f4f777429e8aa4a17d26ecb5af845e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c8f52b2aea2f69999bb799a8798de56e8f4f777429e8aa4a17d26ecb5af845e", kill_on_drop: false }`
[INFO] [stdout] 0c8f52b2aea2f69999bb799a8798de56e8f4f777429e8aa4a17d26ecb5af845e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 57035a3f7b2a03853b7c7cfa19f0b6ff79a942a90eee61b5c4b5aad22a242a50
[INFO] running `Command { std: "docker" "start" "-a" "57035a3f7b2a03853b7c7cfa19f0b6ff79a942a90eee61b5c4b5aad22a242a50", kill_on_drop: false }`
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]  Documenting heph-inbox v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:57:1
[INFO] [stdout]    |
[INFO] [stdout] 57 | #![feature(cfg_sanitize, maybe_uninit_extra, maybe_uninit_ref)]
[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 `heph-inbox`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name heph_inbox src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-c5bfc4224c7a1712.rmeta --cap-lints=warn --crate-version 0.2.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "57035a3f7b2a03853b7c7cfa19f0b6ff79a942a90eee61b5c4b5aad22a242a50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57035a3f7b2a03853b7c7cfa19f0b6ff79a942a90eee61b5c4b5aad22a242a50", kill_on_drop: false }`
[INFO] [stdout] 57035a3f7b2a03853b7c7cfa19f0b6ff79a942a90eee61b5c4b5aad22a242a50
