[INFO] fetching crate static-events 0.1.3...
[INFO] documenting static-events-0.1.3 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate static-events 0.1.3 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate static-events 0.1.3 on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate static-events 0.1.3
[INFO] finished tweaking crates.io crate static-events 0.1.3
[INFO] tweaked toml for crates.io crate static-events 0.1.3 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c5d6dfccf47f65368464fca0b57f41ef45d90e38d3c87b9b1507d9327c2f3fe7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c5d6dfccf47f65368464fca0b57f41ef45d90e38d3c87b9b1507d9327c2f3fe7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5d6dfccf47f65368464fca0b57f41ef45d90e38d3c87b9b1507d9327c2f3fe7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5d6dfccf47f65368464fca0b57f41ef45d90e38d3c87b9b1507d9327c2f3fe7", kill_on_drop: false }`
[INFO] [stdout] c5d6dfccf47f65368464fca0b57f41ef45d90e38d3c87b9b1507d9327c2f3fe7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 481c7f4ab8d1a49d66e713550701b93b2ebe9540696fd6ff080c8e7a30bafd6b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "481c7f4ab8d1a49d66e713550701b93b2ebe9540696fd6ff080c8e7a30bafd6b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-hack v0.4.2
[INFO] [stderr]    Compiling unhygienic-impl v0.1.0
[INFO] [stderr]     Checking unhygienic v0.1.1
[INFO] [stderr]  Documenting static-events v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: allow_internal_unstable expects list of feature names
[INFO] [stdout]    --> src/lib.rs:200:1
[INFO] [stdout]     |
[INFO] [stdout] 200 | #[allow_internal_unstable]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: allow_internal_unstable expects list of feature names
[INFO] [stdout]    --> src/lib.rs:255:1
[INFO] [stdout]     |
[INFO] [stdout] 255 | #[allow_internal_unstable]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: allow_internal_unstable expects list of feature names
[INFO] [stdout]    --> src/lib.rs:315:1
[INFO] [stdout]     |
[INFO] [stdout] 315 | #[allow_internal_unstable]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: allow_internal_unstable expects list of feature names
[INFO] [stdout]    --> src/lib.rs:611:1
[INFO] [stdout]     |
[INFO] [stdout] 611 | #[allow_internal_unstable]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: allow_internal_unstable expects list of feature names
[INFO] [stdout]    --> src/lib.rs:653:1
[INFO] [stdout]     |
[INFO] [stdout] 653 | #[allow_internal_unstable]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: allow_internal_unstable expects list of feature names
[INFO] [stdout]    --> src/lib.rs:699:1
[INFO] [stdout]     |
[INFO] [stdout] 699 | #[allow_internal_unstable]
[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:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | / #![feature(specialization, macro_vis_matcher, macro_at_most_once_rep, allow_internal_unstable,
[INFO] [stdout] 3 | |            use_extern_macros)]
[INFO] [stdout]   | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 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 `static-events`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name static_events 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 unhygienic=/opt/rustwide/target/debug/deps/libunhygienic-8c739f4ca9a8f126.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "481c7f4ab8d1a49d66e713550701b93b2ebe9540696fd6ff080c8e7a30bafd6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "481c7f4ab8d1a49d66e713550701b93b2ebe9540696fd6ff080c8e7a30bafd6b", kill_on_drop: false }`
[INFO] [stdout] 481c7f4ab8d1a49d66e713550701b93b2ebe9540696fd6ff080c8e7a30bafd6b