[INFO] fetching crate argminmax 0.6.1...
[INFO] documenting argminmax-0.6.1 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate argminmax 0.6.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate argminmax 0.6.1 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-6-tc1/source/rust-toolchain
[INFO] started tweaking crates.io crate argminmax 0.6.1
[INFO] finished tweaking crates.io crate argminmax 0.6.1
[INFO] tweaked toml for crates.io crate argminmax 0.6.1 written to /workspace/builds/worker-6-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 plotters-backend v0.3.5
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[INFO] [stderr]   Downloaded ethnum v1.5.0
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] bee3b84f9d91db14a084755153cb59268a25ab65701371a875913e657340e54c
[INFO] running `Command { std: "docker" "start" "-a" "bee3b84f9d91db14a084755153cb59268a25ab65701371a875913e657340e54c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bee3b84f9d91db14a084755153cb59268a25ab65701371a875913e657340e54c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bee3b84f9d91db14a084755153cb59268a25ab65701371a875913e657340e54c", kill_on_drop: false }`
[INFO] [stdout] bee3b84f9d91db14a084755153cb59268a25ab65701371a875913e657340e54c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] d7f5db26dd8e3809a463fd6088b75f2feb3964130154bfe1fd7588032f2f2b4d
[INFO] running `Command { std: "docker" "start" "-a" "d7f5db26dd8e3809a463fd6088b75f2feb3964130154bfe1fd7588032f2f2b4d", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]  Documenting argminmax v0.6.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:72:39
[INFO] [stdout]    |
[INFO] [stdout] 72 | #![cfg_attr(feature = "nightly_simd", feature(stdsimd))]
[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:73:39
[INFO] [stdout]    |
[INFO] [stdout] 73 | #![cfg_attr(feature = "nightly_simd", feature(avx512_target_feature))]
[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:74:39
[INFO] [stdout]    |
[INFO] [stdout] 74 | #![cfg_attr(feature = "nightly_simd", feature(arm_target_feature))]
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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 `argminmax`
[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 argminmax src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="float"' --cfg 'feature="nightly_simd"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=14e46cfcee580a8d -L dependency=/opt/rustwide/target/debug/deps --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-dbe094dd22ea9e5e.rmeta --cap-lints=warn --crate-version 0.6.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "d7f5db26dd8e3809a463fd6088b75f2feb3964130154bfe1fd7588032f2f2b4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7f5db26dd8e3809a463fd6088b75f2feb3964130154bfe1fd7588032f2f2b4d", kill_on_drop: false }`
[INFO] [stdout] d7f5db26dd8e3809a463fd6088b75f2feb3964130154bfe1fd7588032f2f2b4d
