[INFO] fetching crate bitcode 0.5.0...
[INFO] documenting bitcode-0.5.0 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate bitcode 0.5.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate bitcode 0.5.0 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-5-tc1/source/.cargo/config.toml
[INFO] started tweaking crates.io crate bitcode 0.5.0
[INFO] finished tweaking crates.io crate bitcode 0.5.0
[INFO] tweaked toml for crates.io crate bitcode 0.5.0 written to /workspace/builds/worker-5-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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded residua-zigzag v0.1.0
[INFO] [stderr]   Downloaded simdutf8 v0.1.4
[INFO] [stderr]   Downloaded packagemerge v0.1.0
[INFO] [stderr]   Downloaded from_bytes_or_zeroed v0.1.0
[INFO] [stderr]   Downloaded bitcode_derive v0.5.0
[INFO] [stderr]   Downloaded bitintr v0.3.0
[INFO] [stderr]   Downloaded lz4_flex v0.10.0
[INFO] [stderr]   Downloaded itertools v0.4.19
[INFO] [stderr]   Downloaded musli-macros v0.0.42
[INFO] [stderr]   Downloaded musli v0.0.42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 43ec1c7cf0feeb31a982be52e01d916e725fd2d03638a309fcf26debb07d463a
[INFO] running `Command { std: "docker" "start" "-a" "43ec1c7cf0feeb31a982be52e01d916e725fd2d03638a309fcf26debb07d463a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43ec1c7cf0feeb31a982be52e01d916e725fd2d03638a309fcf26debb07d463a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43ec1c7cf0feeb31a982be52e01d916e725fd2d03638a309fcf26debb07d463a", kill_on_drop: false }`
[INFO] [stdout] 43ec1c7cf0feeb31a982be52e01d916e725fd2d03638a309fcf26debb07d463a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 71e4bc4d6e7a00d7ae8111e1d65eb25f2154e1d6d6a06d5e68fa64849470d91f
[INFO] running `Command { std: "docker" "start" "-a" "71e4bc4d6e7a00d7ae8111e1d65eb25f2154e1d6d6a06d5e68fa64849470d91f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling itertools v0.4.19
[INFO] [stderr]    Compiling bitintr v0.3.0
[INFO] [stderr]     Checking from_bytes_or_zeroed v0.1.0
[INFO] [stderr]     Checking residua-zigzag v0.1.0
[INFO] [stderr]     Checking simdutf8 v0.1.4
[INFO] [stderr]     Checking bytemuck v1.14.3
[INFO] [stderr]    Compiling packagemerge v0.1.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling bitcode_derive v0.5.0
[INFO] [stderr]  Documenting bitcode v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:18
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![cfg_attr(doc, feature(doc_cfg))]
[INFO] [stdout]   |                  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 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 document `bitcode`
[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 bitcode src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="bitcode_derive"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="simdutf8"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=a55281d351dd692e -L dependency=/opt/rustwide/target/debug/deps --extern bitcode_derive=/opt/rustwide/target/debug/deps/libbitcode_derive-a56918f725406e50.so --extern bitintr=/opt/rustwide/target/debug/deps/libbitintr-9fe6d106d43c96da.rmeta --extern bytemuck=/opt/rustwide/target/debug/deps/libbytemuck-76c695bb6938f217.rmeta --extern from_bytes_or_zeroed=/opt/rustwide/target/debug/deps/libfrom_bytes_or_zeroed-c45aa3938f990ce6.rmeta --extern zigzag=/opt/rustwide/target/debug/deps/libzigzag-66730ab4a1226150.rmeta --extern simdutf8=/opt/rustwide/target/debug/deps/libsimdutf8-6abb5554707c36ff.rmeta --cap-lints=warn --crate-version 0.5.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "71e4bc4d6e7a00d7ae8111e1d65eb25f2154e1d6d6a06d5e68fa64849470d91f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71e4bc4d6e7a00d7ae8111e1d65eb25f2154e1d6d6a06d5e68fa64849470d91f", kill_on_drop: false }`
[INFO] [stdout] 71e4bc4d6e7a00d7ae8111e1d65eb25f2154e1d6d6a06d5e68fa64849470d91f
