[INFO] cloning repository https://github.com/Starlight-JS/starlight-gc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Starlight-JS/starlight-gc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStarlight-JS%2Fstarlight-gc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStarlight-JS%2Fstarlight-gc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] de8f06c8c7ee9c9efe879ee9fb998ff17ea5f09c
[INFO] documenting Starlight-JS/starlight-gc 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%2FStarlight-JS%2Fstarlight-gc" "/workspace/builds/worker-91/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-91/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Starlight-JS/starlight-gc 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/Starlight-JS/starlight-gc
[INFO] finished tweaking git repo https://github.com/Starlight-JS/starlight-gc
[INFO] tweaked toml for git repo https://github.com/Starlight-JS/starlight-gc written to /workspace/builds/worker-91/source/Cargo.toml
[INFO] crate git repo https://github.com/Starlight-JS/starlight-gc 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]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded modular-bitfield-impl v0.11.2
[INFO] [stderr]   Downloaded instant v0.1.10
[INFO] [stderr]   Downloaded memmap2 v0.3.0
[INFO] [stderr]   Downloaded backtrace v0.3.61
[INFO] [stderr]   Downloaded addr2line v0.16.0
[INFO] [stderr]   Downloaded gimli v0.25.0
[INFO] [stderr]   Downloaded modular-bitfield v0.11.2
[INFO] [stderr]   Downloaded generic_static v0.2.0
[INFO] [stderr]   Downloaded object v0.26.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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] 3c836a8aa0ceb430a7df6ffe4e995262421ed2f49fd82ddb4f2e9727abe872e4
[INFO] running `Command { std: "docker" "start" "-a" "3c836a8aa0ceb430a7df6ffe4e995262421ed2f49fd82ddb4f2e9727abe872e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c836a8aa0ceb430a7df6ffe4e995262421ed2f49fd82ddb4f2e9727abe872e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c836a8aa0ceb430a7df6ffe4e995262421ed2f49fd82ddb4f2e9727abe872e4", kill_on_drop: false }`
[INFO] [stdout] 3c836a8aa0ceb430a7df6ffe4e995262421ed2f49fd82ddb4f2e9727abe872e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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] 492df4fc716ef60de333b295fad6829d9c231c8d1cb61561cad74d2fc43e1b50
[INFO] running `Command { std: "docker" "start" "-a" "492df4fc716ef60de333b295fad6829d9c231c8d1cb61561cad74d2fc43e1b50", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling atomic v0.5.0
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]     Checking memmap2 v0.3.0
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking generic_static v0.2.0
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking object v0.26.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking backtrace v0.3.61
[INFO] [stderr]    Compiling modular-bitfield-impl v0.11.2
[INFO] [stderr]     Checking modular-bitfield v0.11.2
[INFO] [stderr]  Documenting comet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_type_id)]
[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 `comet`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name comet 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 atomic=/opt/rustwide/target/debug/deps/libatomic-5fe12bdd7230bc1c.rmeta --extern backtrace=/opt/rustwide/target/debug/deps/libbacktrace-9db052fea505cf6b.rmeta --extern crossbeam_utils=/opt/rustwide/target/debug/deps/libcrossbeam_utils-1fa8f62856b38398.rmeta --extern generic_static=/opt/rustwide/target/debug/deps/libgeneric_static-a1236248e22b78d0.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-d38c567ce4ccc50e.rmeta --extern memmap2=/opt/rustwide/target/debug/deps/libmemmap2-2572a2c01e4a0429.rmeta --extern modular_bitfield=/opt/rustwide/target/debug/deps/libmodular_bitfield-523cc9b94ca9471e.rmeta --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-07537f67e3fa3d99.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "492df4fc716ef60de333b295fad6829d9c231c8d1cb61561cad74d2fc43e1b50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "492df4fc716ef60de333b295fad6829d9c231c8d1cb61561cad74d2fc43e1b50", kill_on_drop: false }`
[INFO] [stdout] 492df4fc716ef60de333b295fad6829d9c231c8d1cb61561cad74d2fc43e1b50
