[INFO] fetching crate palloc 0.1.3...
[INFO] documenting palloc-0.1.3 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate palloc 0.1.3 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate palloc 0.1.3 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0-tc1/source/rust-toolchain
[INFO] started tweaking crates.io crate palloc 0.1.3
[INFO] finished tweaking crates.io crate palloc 0.1.3
[INFO] tweaked toml for crates.io crate palloc 0.1.3 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 206682cfa76f3db11c6c6c9361157a28f66b93af09aa325f1b3a913101d79e02
[INFO] running `Command { std: "docker" "start" "-a" "206682cfa76f3db11c6c6c9361157a28f66b93af09aa325f1b3a913101d79e02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "206682cfa76f3db11c6c6c9361157a28f66b93af09aa325f1b3a913101d79e02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "206682cfa76f3db11c6c6c9361157a28f66b93af09aa325f1b3a913101d79e02", kill_on_drop: false }`
[INFO] [stdout] 206682cfa76f3db11c6c6c9361157a28f66b93af09aa325f1b3a913101d79e02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2144bd59063c88ba5c174b985955831efb17c50cb82d42f92a6c8b10d1182607
[INFO] running `Command { std: "docker" "start" "-a" "2144bd59063c88ba5c174b985955831efb17c50cb82d42f92a6c8b10d1182607", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]  Documenting palloc v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     feature(allocator_api, nonnull_slice_from_raw_parts)
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(trait_alias)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[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 `palloc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type lib --crate-name palloc src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="allocator_api"' --cfg 'feature="default"' --cfg 'feature="spin"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=3c0cf3cee5874e27 -L dependency=/opt/rustwide/target/debug/deps --extern spin=/opt/rustwide/target/debug/deps/libspin-5d7b127205843d5b.rmeta --cap-lints=warn --crate-version 0.1.3` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "2144bd59063c88ba5c174b985955831efb17c50cb82d42f92a6c8b10d1182607", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2144bd59063c88ba5c174b985955831efb17c50cb82d42f92a6c8b10d1182607", kill_on_drop: false }`
[INFO] [stdout] 2144bd59063c88ba5c174b985955831efb17c50cb82d42f92a6c8b10d1182607
