Dec 05 06:02:14.793 INFO checking stream-combinators-0.1.0 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 06:02:14.793 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-7/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1df97983eb2057dc6a8f7eb364e263b51ae23230-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 05 06:02:15.292 INFO [stdout] a3c4d78393bd80674295f23bf272c1074669d8c59bd8c5d626e7778c0ee6b34e
Dec 05 06:02:15.294 INFO running `"docker" "start" "-a" "a3c4d78393bd80674295f23bf272c1074669d8c59bd8c5d626e7778c0ee6b34e"`
Dec 05 06:02:16.513 INFO [stderr] usermod: no changes
Dec 05 06:02:16.716 INFO [stderr]     Checking tokio-stdin v0.1.1
Dec 05 06:02:16.716 INFO [stderr]     Checking stream-combinators v0.1.0 (/source)
Dec 05 06:02:18.256 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 05 06:02:18.256 INFO [stderr]  --> examples/into_pairs.rs:9:41
Dec 05 06:02:18.256 INFO [stderr]   |
Dec 05 06:02:18.256 INFO [stderr] 9 |     let number_stream = iter_ok::<_,()>((0..6));
Dec 05 06:02:18.257 INFO [stderr]   |                                         ^^^^^^ help: remove these parentheses
Dec 05 06:02:18.257 INFO [stderr]   |
Dec 05 06:02:18.257 INFO [stderr]   = note: #[warn(unused_parens)] on by default
Dec 05 06:02:18.257 INFO [stderr] 
Dec 05 06:02:21.675 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.12s
Dec 05 06:02:21.679 INFO [stderr] su: No module specific data is present
Dec 05 06:02:22.150 INFO running `"docker" "inspect" "a3c4d78393bd80674295f23bf272c1074669d8c59bd8c5d626e7778c0ee6b34e"`
Dec 05 06:02:22.311 INFO running `"docker" "rm" "-f" "a3c4d78393bd80674295f23bf272c1074669d8c59bd8c5d626e7778c0ee6b34e"`
Dec 05 06:02:22.440 INFO [stdout] a3c4d78393bd80674295f23bf272c1074669d8c59bd8c5d626e7778c0ee6b34e