[INFO] fetching crate components-arena 3.5.1...
[INFO] documenting components-arena-3.5.1 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate components-arena 3.5.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate components-arena 3.5.1 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate components-arena 3.5.1
[INFO] finished tweaking crates.io crate components-arena 3.5.1
[INFO] tweaked toml for crates.io crate components-arena 3.5.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate components-arena 3.5.1 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" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded educe v0.4.21
[INFO] [stderr]   Downloaded document-features v0.2.7
[INFO] [stderr]   Downloaded generics v0.4.4
[INFO] [stderr]   Downloaded composable-allocators v0.2.6
[INFO] [stderr]   Downloaded components-arena-traits v1.1.0
[INFO] [stderr]   Downloaded phantom-type v0.4.2
[INFO] [stderr]   Downloaded macro-attr-2018 v2.1.2
[INFO] [stderr]   Downloaded enum-ordinalize v3.1.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 23cf8bbe6d957c576029d6ee2d0ec4447e314dc644bad5c0d6861ef2be1a221f
[INFO] running `Command { std: "docker" "start" "-a" "23cf8bbe6d957c576029d6ee2d0ec4447e314dc644bad5c0d6861ef2be1a221f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23cf8bbe6d957c576029d6ee2d0ec4447e314dc644bad5c0d6861ef2be1a221f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23cf8bbe6d957c576029d6ee2d0ec4447e314dc644bad5c0d6861ef2be1a221f", kill_on_drop: false }`
[INFO] [stdout] 23cf8bbe6d957c576029d6ee2d0ec4447e314dc644bad5c0d6861ef2be1a221f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5eb56bbab03b67854726198f164b30a6a04f0e50dead3aa70199f104ca9b823b
[INFO] running `Command { std: "docker" "start" "-a" "5eb56bbab03b67854726198f164b30a6a04f0e50dead3aa70199f104ca9b823b", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling litrs v0.2.3
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking components-arena-traits v1.1.0
[INFO] [stderr]     Checking generics v0.4.4
[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/components-arena-traits-1.1.0/src/lib.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(feature="nightly", feature(const_trait_impl))]
[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 `components-arena-traits` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5eb56bbab03b67854726198f164b30a6a04f0e50dead3aa70199f104ca9b823b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5eb56bbab03b67854726198f164b30a6a04f0e50dead3aa70199f104ca9b823b", kill_on_drop: false }`
[INFO] [stdout] 5eb56bbab03b67854726198f164b30a6a04f0e50dead3aa70199f104ca9b823b
