Sep 04 01:31:07.010 INFO checking stream-combinators-0.1.0 against master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c for pr-53893
Sep 04 01:31:07.010 INFO running: cargo +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets
Sep 04 01:31:07.011 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53893/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-3/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 01:31:07.260 INFO blam! 85b6059b7a6bff272eb3294c0062554eedbec547d838f18fbc78e25d4c18bef9
Sep 04 01:31:07.260 INFO running `"docker" "start" "-a" "85b6059b7a6bff272eb3294c0062554eedbec547d838f18fbc78e25d4c18bef9"`
Sep 04 01:31:08.102 INFO kablam!     Checking tokio-stdin v0.1.1
Sep 04 01:31:08.102 INFO kablam!     Checking stream-combinators v0.1.0 (file:///source)
Sep 04 01:31:09.215 INFO kablam! warning: unnecessary parentheses around function argument
Sep 04 01:31:09.215 INFO kablam!  --> examples/into_pairs.rs:9:41
Sep 04 01:31:09.215 INFO kablam!   |
Sep 04 01:31:09.215 INFO kablam! 9 |     let number_stream = iter_ok::<_,()>((0..6));
Sep 04 01:31:09.215 INFO kablam!   |                                         ^^^^^^ help: remove these parentheses
Sep 04 01:31:09.215 INFO kablam!   |
Sep 04 01:31:09.215 INFO kablam!   = note: #[warn(unused_parens)] on by default
Sep 04 01:31:09.215 INFO kablam! 
Sep 04 01:31:10.796 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.83s
Sep 04 01:31:10.803 INFO kablam! su: No module specific data is present
Sep 04 01:31:11.290 INFO running `"docker" "rm" "-f" "85b6059b7a6bff272eb3294c0062554eedbec547d838f18fbc78e25d4c18bef9"`
Sep 04 01:31:11.385 INFO blam! 85b6059b7a6bff272eb3294c0062554eedbec547d838f18fbc78e25d4c18bef9