[INFO] crate tokio-simplified 0.2.1 is already in cache
[INFO] checking tokio-simplified-0.2.1 against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1
[INFO] extracting crate tokio-simplified 0.2.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate tokio-simplified 0.2.1 on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate tokio-simplified 0.2.1
[INFO] finished tweaking crates.io crate tokio-simplified 0.2.1
[INFO] tweaked toml for crates.io crate tokio-simplified 0.2.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a4bf8349678581eec6bfd3b16a079c6aede4fe2f6612cbf09b3f782cf733aef4
[INFO] running `"docker" "start" "-a" "a4bf8349678581eec6bfd3b16a079c6aede4fe2f6612cbf09b3f782cf733aef4"`
[INFO] [stderr]     Checking futures-promises v0.1.11
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking tokio-simplified v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/lib.rs:80:10
[INFO] [stderr]    |
[INFO] [stderr] 80 |       BF = (fn(
[INFO] [stderr]    |  __________^
[INFO] [stderr] 81 | |         <StreamType as Stream>::Item,
[INFO] [stderr] 82 | |         &mut IoWriter<<SinkType as Sink>::SinkItem>,
[INFO] [stderr] 83 | |     ) -> Option<<StreamType as Stream>::Item>),
[INFO] [stderr]    | |______________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 80 |     BF = fn(
[INFO] [stderr] 81 |         <StreamType as Stream>::Item,
[INFO] [stderr] 82 |         &mut IoWriter<<SinkType as Sink>::SinkItem>,
[INFO] [stderr] 83 |     ) -> Option<<StreamType as Stream>::Item>,
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/lib.rs:84:11
[INFO] [stderr]    |
[INFO] [stderr] 84 |     BEH = (fn(<StreamType as Stream>::Error)),
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:102:48
[INFO] [stderr]     |
[INFO] [stderr] 102 |   type DefaultFilterType<SinkType, StreamType> = (fn(
[INFO] [stderr]     |  ________________________________________________^
[INFO] [stderr] 103 | |     <StreamType as Stream>::Item,
[INFO] [stderr] 104 | |     &mut IoWriter<<SinkType as Sink>::SinkItem>,
[INFO] [stderr] 105 | | ) -> Option<<StreamType as Stream>::Item>);
[INFO] [stderr]     | |__________________________________________^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 102 | type DefaultFilterType<SinkType, StreamType> = fn(
[INFO] [stderr] 103 |     <StreamType as Stream>::Item,
[INFO] [stderr] 104 |     &mut IoWriter<<SinkType as Sink>::SinkItem>,
[INFO] [stderr] 105 | ) -> Option<<StreamType as Stream>::Item>;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:106:44
[INFO] [stderr]     |
[INFO] [stderr] 106 | type DefaultErrorHandlerType<StreamType> = (fn(<StreamType as Stream>::Error));
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/lib.rs:80:10
[INFO] [stderr]    |
[INFO] [stderr] 80 |       BF = (fn(
[INFO] [stderr]    |  __________^
[INFO] [stderr] 81 | |         <StreamType as Stream>::Item,
[INFO] [stderr] 82 | |         &mut IoWriter<<SinkType as Sink>::SinkItem>,
[INFO] [stderr] 83 | |     ) -> Option<<StreamType as Stream>::Item>),
[INFO] [stderr]    | |______________________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 80 |     BF = fn(
[INFO] [stderr] 81 |         <StreamType as Stream>::Item,
[INFO] [stderr] 82 |         &mut IoWriter<<SinkType as Sink>::SinkItem>,
[INFO] [stderr] 83 |     ) -> Option<<StreamType as Stream>::Item>,
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/lib.rs:84:11
[INFO] [stderr]    |
[INFO] [stderr] 84 |     BEH = (fn(<StreamType as Stream>::Error)),
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:102:48
[INFO] [stderr]     |
[INFO] [stderr] 102 |   type DefaultFilterType<SinkType, StreamType> = (fn(
[INFO] [stderr]     |  ________________________________________________^
[INFO] [stderr] 103 | |     <StreamType as Stream>::Item,
[INFO] [stderr] 104 | |     &mut IoWriter<<SinkType as Sink>::SinkItem>,
[INFO] [stderr] 105 | | ) -> Option<<StreamType as Stream>::Item>);
[INFO] [stderr]     | |__________________________________________^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 102 | type DefaultFilterType<SinkType, StreamType> = fn(
[INFO] [stderr] 103 |     <StreamType as Stream>::Item,
[INFO] [stderr] 104 |     &mut IoWriter<<SinkType as Sink>::SinkItem>,
[INFO] [stderr] 105 | ) -> Option<<StreamType as Stream>::Item>;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/lib.rs:106:44
[INFO] [stderr]     |
[INFO] [stderr] 106 | type DefaultErrorHandlerType<StreamType> = (fn(<StreamType as Stream>::Error));
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.03s
[INFO] running `"docker" "inspect" "a4bf8349678581eec6bfd3b16a079c6aede4fe2f6612cbf09b3f782cf733aef4"`
[INFO] running `"docker" "rm" "-f" "a4bf8349678581eec6bfd3b16a079c6aede4fe2f6612cbf09b3f782cf733aef4"`
[INFO] [stdout] a4bf8349678581eec6bfd3b16a079c6aede4fe2f6612cbf09b3f782cf733aef4