Dec 19 17:55:21.399 INFO checking djmitche/rust-chat against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 17:55:21.400 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/djmitche/rust-chat:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 17:55:21.888 INFO [stdout] 8bcd759a4542bd93ea4f2a2e376940617f0aea25c917197d6e21d2b1d11d6602
Dec 19 17:55:21.919 INFO running `"docker" "start" "-a" "8bcd759a4542bd93ea4f2a2e376940617f0aea25c917197d6e21d2b1d11d6602"`
Dec 19 17:55:22.744 INFO [stderr]     Checking chat v0.1.0 (/opt/crater/workdir)
Dec 19 17:55:23.064 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 19 17:55:23.064 INFO [stderr]    --> src/main.rs:103:64
Dec 19 17:55:23.064 INFO [stderr]     |
Dec 19 17:55:23.064 INFO [stderr] 103 |             Box::new(writer_fut.select(reader_fut).then(|_| Ok((()))).map(
Dec 19 17:55:23.064 INFO [stderr]     |                                                                ^^^^ help: remove these parentheses
Dec 19 17:55:23.064 INFO [stderr]     |
Dec 19 17:55:23.064 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Dec 19 17:55:23.064 INFO [stderr] 
Dec 19 17:55:23.073 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 19 17:55:23.073 INFO [stderr]    --> src/main.rs:103:64
Dec 19 17:55:23.073 INFO [stderr]     |
Dec 19 17:55:23.073 INFO [stderr] 103 |             Box::new(writer_fut.select(reader_fut).then(|_| Ok((()))).map(
Dec 19 17:55:23.073 INFO [stderr]     |                                                                ^^^^ help: remove these parentheses
Dec 19 17:55:23.073 INFO [stderr]     |
Dec 19 17:55:23.073 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Dec 19 17:55:23.073 INFO [stderr] 
Dec 19 17:55:23.255 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
Dec 19 17:55:23.716 INFO running `"docker" "inspect" "8bcd759a4542bd93ea4f2a2e376940617f0aea25c917197d6e21d2b1d11d6602"`
Dec 19 17:55:23.895 INFO running `"docker" "rm" "-f" "8bcd759a4542bd93ea4f2a2e376940617f0aea25c917197d6e21d2b1d11d6602"`
Dec 19 17:55:24.024 INFO [stdout] 8bcd759a4542bd93ea4f2a2e376940617f0aea25c917197d6e21d2b1d11d6602