[INFO] fetching crate astral 0.3.1...
[INFO] documenting astral-0.3.1 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate astral 0.3.1 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate astral 0.3.1 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate astral 0.3.1
[INFO] finished tweaking crates.io crate astral 0.3.1
[INFO] tweaked toml for crates.io crate astral 0.3.1 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a754e6041d429312cc687ee50a6387125f0c0ab0fcad7cba8931bbdfcced6025
[INFO] running `Command { std: "docker" "start" "-a" "a754e6041d429312cc687ee50a6387125f0c0ab0fcad7cba8931bbdfcced6025", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a754e6041d429312cc687ee50a6387125f0c0ab0fcad7cba8931bbdfcced6025", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a754e6041d429312cc687ee50a6387125f0c0ab0fcad7cba8931bbdfcced6025", kill_on_drop: false }`
[INFO] [stdout] a754e6041d429312cc687ee50a6387125f0c0ab0fcad7cba8931bbdfcced6025
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c79b963c64af056a430c4b3c58cbba309eb14d14cb4c6ac85bd31cae5b12400
[INFO] running `Command { std: "docker" "start" "-a" "3c79b963c64af056a430c4b3c58cbba309eb14d14cb4c6ac85bd31cae5b12400", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking vsop87 v2.1.0
[INFO] [stderr]     Checking astro v2.0.0
[INFO] [stderr]     Checking assert_approx_eq v1.1.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]  Documenting astral v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(use_extern_macros)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `use_extern_macros` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 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 `astral`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name astral src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern assert_approx_eq=/opt/rustwide/target/debug/deps/libassert_approx_eq-692583cb1dcb1f33.rmeta --extern astro=/opt/rustwide/target/debug/deps/libastro-12f38601a23252cd.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-df28f6d2940d850c.rmeta --extern csv=/opt/rustwide/target/debug/deps/libcsv-d28e80a808f3c42d.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-5678c1422d6b64cb.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-05e319b971c8ec6f.so --extern vsop87=/opt/rustwide/target/debug/deps/libvsop87-1b2e5906bd790aee.rmeta --cap-lints=warn --crate-version 0.3.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "3c79b963c64af056a430c4b3c58cbba309eb14d14cb4c6ac85bd31cae5b12400", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c79b963c64af056a430c4b3c58cbba309eb14d14cb4c6ac85bd31cae5b12400", kill_on_drop: false }`
[INFO] [stdout] 3c79b963c64af056a430c4b3c58cbba309eb14d14cb4c6ac85bd31cae5b12400
