[INFO] fetching crate brush_lang_codegen 1.8.0...
[INFO] documenting brush_lang_codegen-1.8.0 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate brush_lang_codegen 1.8.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate brush_lang_codegen 1.8.0 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] started tweaking crates.io crate brush_lang_codegen 1.8.0
[INFO] finished tweaking crates.io crate brush_lang_codegen 1.8.0
[INFO] tweaked toml for crates.io crate brush_lang_codegen 1.8.0 written to /workspace/builds/worker-3-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 blake2 v0.9.2
[INFO] [stderr]   Downloaded cargo_metadata v0.13.1
[INFO] [stderr]   Downloaded ink_lang_ir v3.4.0
[INFO] [stderr]   Downloaded unwrap v1.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] f8f74b3a509d80c38851402c8d0b90804cae0dd9be275087cd5e1de56140b72e
[INFO] running `Command { std: "docker" "start" "-a" "f8f74b3a509d80c38851402c8d0b90804cae0dd9be275087cd5e1de56140b72e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8f74b3a509d80c38851402c8d0b90804cae0dd9be275087cd5e1de56140b72e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8f74b3a509d80c38851402c8d0b90804cae0dd9be275087cd5e1de56140b72e", kill_on_drop: false }`
[INFO] [stdout] f8f74b3a509d80c38851402c8d0b90804cae0dd9be275087cd5e1de56140b72e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 8743aaab60458aa8505ce6da638a0dd7cbd5c14f4779684e578da3343fba11c9
[INFO] running `Command { std: "docker" "start" "-a" "8743aaab60458aa8505ce6da638a0dd7cbd5c14f4779684e578da3343fba11c9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]    Compiling thiserror v1.0.57
[INFO] [stderr]     Checking ucd-trie v0.1.6
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde_json v1.0.113
[INFO] [stderr]    Compiling camino v1.1.6
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking blake2 v0.10.6
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking unicode-segmentation v1.11.0
[INFO] [stderr]     Checking blake2 v0.9.2
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking unwrap v1.2.1
[INFO] [stderr]     Checking quote v1.0.35
[INFO] [stderr]     Checking heck v0.3.3
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]     Checking ink_lang_ir v3.4.0
[INFO] [stderr]     Checking synstructure v0.12.6
[INFO] [stderr]     Checking pest v2.7.7
[INFO] [stderr]     Checking semver-parser v0.10.2
[INFO] [stderr]     Checking serde v1.0.196
[INFO] [stderr]     Checking semver v0.11.0
[INFO] [stderr]     Checking cargo-platform v0.1.7
[INFO] [stderr]     Checking cargo_metadata v0.13.1
[INFO] [stderr]  Documenting brush_lang_codegen v1.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | #![feature(drain_filter)]
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `drain_filter`
[INFO] [stdout]   --> src/lib.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | #![feature(drain_filter)]
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `brush_lang_codegen`
[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 rlib --crate-name brush_lang_codegen src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="std"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=41b9db6efa5892bf -L dependency=/opt/rustwide/target/debug/deps --extern blake2=/opt/rustwide/target/debug/deps/libblake2-2fcd69bb3848f1d0.rmeta --extern cargo_metadata=/opt/rustwide/target/debug/deps/libcargo_metadata-c162f525efacaa2d.rmeta --extern fs2=/opt/rustwide/target/debug/deps/libfs2-1fd20dca3ac4aed0.rmeta --extern heck=/opt/rustwide/target/debug/deps/libheck-008b4e8b6a672e0a.rmeta --extern ink_lang_ir=/opt/rustwide/target/debug/deps/libink_lang_ir-0d1635f82f2b1db9.rmeta --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-625488f9056fbf70.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-e14489f88c70212e.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-09787799c1c50729.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-87558bc0cd760107.rmeta --extern syn=/opt/rustwide/target/debug/deps/libsyn-1bd8f40605939396.rmeta --extern synstructure=/opt/rustwide/target/debug/deps/libsynstructure-ed649b2a6a27c160.rmeta --extern unwrap=/opt/rustwide/target/debug/deps/libunwrap-7e125e3bf2aeac89.rmeta --cap-lints=warn --crate-version 1.8.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "8743aaab60458aa8505ce6da638a0dd7cbd5c14f4779684e578da3343fba11c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8743aaab60458aa8505ce6da638a0dd7cbd5c14f4779684e578da3343fba11c9", kill_on_drop: false }`
[INFO] [stdout] 8743aaab60458aa8505ce6da638a0dd7cbd5c14f4779684e578da3343fba11c9
