[INFO] fetching crate rustrict 0.7.16...
[INFO] documenting rustrict-0.7.16 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate rustrict 0.7.16 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate rustrict 0.7.16 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustrict 0.7.16
[INFO] finished tweaking crates.io crate rustrict 0.7.16
[INFO] tweaked toml for crates.io crate rustrict 0.7.16 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate rustrict 0.7.16 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rulinalg v0.4.2
[INFO] [stderr]   Downloaded censor v0.3.0
[INFO] [stderr]   Downloaded ab_glyph_rasterizer v0.1.5
[INFO] [stderr]   Downloaded indicatif v0.17.0-beta.1
[INFO] [stderr]   Downloaded bytemuck v1.8.0
[INFO] [stderr]   Downloaded rustrict v0.7.12
[INFO] [stderr]   Downloaded imageproc v0.22.0
[INFO] [stderr]   Downloaded libc v0.2.101
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4885072e0452182787ef57bf4f1f18cf9a7481d7de4c13025f5090c2b30e52e6
[INFO] running `Command { std: "docker" "start" "-a" "4885072e0452182787ef57bf4f1f18cf9a7481d7de4c13025f5090c2b30e52e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4885072e0452182787ef57bf4f1f18cf9a7481d7de4c13025f5090c2b30e52e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4885072e0452182787ef57bf4f1f18cf9a7481d7de4c13025f5090c2b30e52e6", kill_on_drop: false }`
[INFO] [stdout] 4885072e0452182787ef57bf4f1f18cf9a7481d7de4c13025f5090c2b30e52e6
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c73309d3b3c3e06201e217540f5f2cb801f4e1b0dc4df56a678332db05f6219
[INFO] running `Command { std: "docker" "start" "-a" "2c73309d3b3c3e06201e217540f5f2cb801f4e1b0dc4df56a678332db05f6219", kill_on_drop: false }`
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking tinyvec v1.3.1
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking finl_unicode v1.2.0
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]  Documenting rustrict v0.7.16 (/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 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 `rustrict`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type lib --crate-name rustrict src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="arrayvec"' --cfg 'feature="bitflags"' --cfg 'feature="censor"' --cfg 'feature="context"' --cfg 'feature="default"' --cfg 'feature="itertools"' --cfg 'feature="lazy_static"' --cfg 'feature="rustc-hash"' --cfg 'feature="strsim"' --cfg 'feature="unicode-normalization"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=2841a0bfebc2b7e3 -L dependency=/opt/rustwide/target/debug/deps --extern arrayvec=/opt/rustwide/target/debug/deps/libarrayvec-601c416dd35a7fcc.rmeta --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-c0bd97bdb7c1fbd1.rmeta --extern doc_comment=/opt/rustwide/target/debug/deps/libdoc_comment-b6cf2fe70be9e2b3.rmeta --extern finl_unicode=/opt/rustwide/target/debug/deps/libfinl_unicode-ad5ccfa0a4d61f4d.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-46496f8164fa850b.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-e7445b4e8703c20b.rmeta --extern rustc_hash=/opt/rustwide/target/debug/deps/librustc_hash-97a1b2d1b6045209.rmeta --extern strsim=/opt/rustwide/target/debug/deps/libstrsim-73ecffc3fe918e8b.rmeta --extern unicode_normalization=/opt/rustwide/target/debug/deps/libunicode_normalization-bffca37f11fbe1bc.rmeta --cap-lints=warn --crate-version 0.7.16` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "2c73309d3b3c3e06201e217540f5f2cb801f4e1b0dc4df56a678332db05f6219", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c73309d3b3c3e06201e217540f5f2cb801f4e1b0dc4df56a678332db05f6219", kill_on_drop: false }`
[INFO] [stdout] 2c73309d3b3c3e06201e217540f5f2cb801f4e1b0dc4df56a678332db05f6219
