[INFO] fetching crate abe 0.3.0-rc1...
[INFO] documenting abe-0.3.0-rc1 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate abe 0.3.0-rc1 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate abe 0.3.0-rc1 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] started tweaking crates.io crate abe 0.3.0-rc1
[INFO] finished tweaking crates.io crate abe 0.3.0-rc1
[INFO] tweaked toml for crates.io crate abe 0.3.0-rc1 written to /workspace/builds/worker-7-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 arrayvec v0.7.2
[INFO] [stderr]   Downloaded thiserror-impl v1.0.40
[INFO] [stderr]   Downloaded serde_derive v1.0.160
[INFO] [stderr]   Downloaded thiserror v1.0.40
[INFO] [stderr]   Downloaded anyhow v1.0.71
[INFO] [stderr]   Downloaded bstr v1.9.0
[INFO] [stderr]   Downloaded serde v1.0.160
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] df22ed87e6ce4a7336d626969757c22019dcb362e25290895f314ed9617e0f53
[INFO] running `Command { std: "docker" "start" "-a" "df22ed87e6ce4a7336d626969757c22019dcb362e25290895f314ed9617e0f53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df22ed87e6ce4a7336d626969757c22019dcb362e25290895f314ed9617e0f53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df22ed87e6ce4a7336d626969757c22019dcb362e25290895f314ed9617e0f53", kill_on_drop: false }`
[INFO] [stdout] df22ed87e6ce4a7336d626969757c22019dcb362e25290895f314ed9617e0f53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] ef94b0a24bf8f7f7ac53bf262418bf83d91c16c5e0c7b87c373c3f91aa88a17a
[INFO] running `Command { std: "docker" "start" "-a" "ef94b0a24bf8f7f7ac53bf262418bf83d91c16c5e0c7b87c373c3f91aa88a17a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling serde_derive v1.0.160
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling anyhow v1.0.71
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]     Checking base64 v0.21.7
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking bstr v1.9.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]  Documenting abe v0.3.0-rc1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:6:1
[INFO] [stdout]    |
[INFO] [stdout] 6  | / #![feature(
[INFO] [stdout] 7  | |     slice_as_chunks,
[INFO] [stdout] 8  | |     split_as_slice,
[INFO] [stdout] 9  | |     split_array,
[INFO] [stdout] ...  |
[INFO] [stdout] 15 | |     bigint_helper_methods
[INFO] [stdout] 16 | | )]
[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 `abe`
[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 abe src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=747cb5b92721783c -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-8f726a71570e27c2.rmeta --extern arrayvec=/opt/rustwide/target/debug/deps/libarrayvec-4fbcf527f748961d.rmeta --extern base64=/opt/rustwide/target/debug/deps/libbase64-ab5978f82f0243f6.rmeta --extern bstr=/opt/rustwide/target/debug/deps/libbstr-090b559bc6f5f7f9.rmeta --extern hex=/opt/rustwide/target/debug/deps/libhex-a89e095190f56c37.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-29a619cdee7b6411.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-e635e0c471fe3db8.rmeta --cap-lints=warn --crate-version 0.3.0-rc1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "ef94b0a24bf8f7f7ac53bf262418bf83d91c16c5e0c7b87c373c3f91aa88a17a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef94b0a24bf8f7f7ac53bf262418bf83d91c16c5e0c7b87c373c3f91aa88a17a", kill_on_drop: false }`
[INFO] [stdout] ef94b0a24bf8f7f7ac53bf262418bf83d91c16c5e0c7b87c373c3f91aa88a17a
