[INFO] fetching crate yaiouom 0.1.3...
[INFO] documenting yaiouom-0.1.3 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate yaiouom 0.1.3 into /workspace/builds/worker-31/source
[INFO] validating manifest of crates.io crate yaiouom 0.1.3 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate yaiouom 0.1.3
[INFO] finished tweaking crates.io crate yaiouom 0.1.3
[INFO] tweaked toml for crates.io crate yaiouom 0.1.3 written to /workspace/builds/worker-31/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 496f3dc1bccb8c973f0382cdd391809813785d4137b08af4cbb8236c33be5e45
[INFO] running `Command { std: "docker" "start" "-a" "496f3dc1bccb8c973f0382cdd391809813785d4137b08af4cbb8236c33be5e45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "496f3dc1bccb8c973f0382cdd391809813785d4137b08af4cbb8236c33be5e45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "496f3dc1bccb8c973f0382cdd391809813785d4137b08af4cbb8236c33be5e45", kill_on_drop: false }`
[INFO] [stdout] 496f3dc1bccb8c973f0382cdd391809813785d4137b08af4cbb8236c33be5e45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92d6a0174937436e47af3796a9a9cacfc34cf25752bbf07271f1bb0d75aa1ba1
[INFO] running `Command { std: "docker" "start" "-a" "92d6a0174937436e47af3796a9a9cacfc34cf25752bbf07271f1bb0d75aa1ba1", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]  Documenting yaiouom v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: attributes starting with `rustc` are reserved for use by the `rustc` compiler
[INFO] [stdout]   --> src/unit.rs:65:3
[INFO] [stdout]    |
[INFO] [stdout] 65 | #[rustc_yaiouom_check_unify_measure]
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: attributes starting with `rustc` are reserved for use by the `rustc` compiler
[INFO] [stdout]    --> src/unit.rs:156:7
[INFO] [stdout]     |
[INFO] [stdout] 156 |     #[rustc_yaiouom_check_unify]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: attributes starting with `rustc` are reserved for use by the `rustc` compiler
[INFO] [stdout]    --> src/unit.rs:518:3
[INFO] [stdout]     |
[INFO] [stdout] 518 | #[rustc_yaiouom_combinator_dimensionless]
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: attributes starting with `rustc` are reserved for use by the `rustc` compiler
[INFO] [stdout]    --> src/unit.rs:548:3
[INFO] [stdout]     |
[INFO] [stdout] 548 | #[rustc_yaiouom_combinator_mul]
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: attributes starting with `rustc` are reserved for use by the `rustc` compiler
[INFO] [stdout]    --> src/unit.rs:569:3
[INFO] [stdout]     |
[INFO] [stdout] 569 | #[rustc_yaiouom_combinator_inv]
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `rustc_yaiouom_check_unify_measure` in this scope
[INFO] [stdout]   --> src/unit.rs:65:3
[INFO] [stdout]    |
[INFO] [stdout] 65 | #[rustc_yaiouom_check_unify_measure]
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `rustc_yaiouom_check_unify` in this scope
[INFO] [stdout]    --> src/unit.rs:156:7
[INFO] [stdout]     |
[INFO] [stdout] 156 |     #[rustc_yaiouom_check_unify]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `rustc_yaiouom_combinator_dimensionless` in this scope
[INFO] [stdout]    --> src/unit.rs:518:3
[INFO] [stdout]     |
[INFO] [stdout] 518 | #[rustc_yaiouom_combinator_dimensionless]
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `rustc_yaiouom_combinator_mul` in this scope
[INFO] [stdout]    --> src/unit.rs:548:3
[INFO] [stdout]     |
[INFO] [stdout] 548 | #[rustc_yaiouom_combinator_mul]
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `rustc_yaiouom_combinator_inv` in this scope
[INFO] [stdout]    --> src/unit.rs:569:3
[INFO] [stdout]     |
[INFO] [stdout] 569 | #[rustc_yaiouom_combinator_inv]
[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:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(rustc_attrs)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 12 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 `yaiouom`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name yaiouom src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=2755516b21faf450 -L dependency=/opt/rustwide/target/debug/deps --extern itertools=/opt/rustwide/target/debug/deps/libitertools-237e07c83799a2ab.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-9d0fb7f65d2860a4.rmeta --cap-lints=warn --crate-version 0.1.3` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "92d6a0174937436e47af3796a9a9cacfc34cf25752bbf07271f1bb0d75aa1ba1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92d6a0174937436e47af3796a9a9cacfc34cf25752bbf07271f1bb0d75aa1ba1", kill_on_drop: false }`
[INFO] [stdout] 92d6a0174937436e47af3796a9a9cacfc34cf25752bbf07271f1bb0d75aa1ba1