Sep 01 04:59:01.779 INFO checking stream-combinators-0.1.0 against try#aa245a5862056b681d2ccdb178f58891108cd3a6 for pr-53831
Sep 01 04:59:01.779 INFO running: cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets
Sep 01 04:59:01.780 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53831/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-1/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/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 +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 04:59:01.979 INFO blam! b751bf6f7fcba5e49fc143e39816e986efe1ce3a50927067428be84d1aa01caf
Sep 01 04:59:01.981 INFO running `"docker" "start" "-a" "b751bf6f7fcba5e49fc143e39816e986efe1ce3a50927067428be84d1aa01caf"`
Sep 01 04:59:02.905 INFO kablam!     Checking tokio-stdin v0.1.1
Sep 01 04:59:02.905 INFO kablam!     Checking stream-combinators v0.1.0 (file:///source)
Sep 01 04:59:03.928 INFO kablam! warning: unnecessary parentheses around function argument
Sep 01 04:59:03.928 INFO kablam!  --> examples/into_pairs.rs:9:41
Sep 01 04:59:03.928 INFO kablam!   |
Sep 01 04:59:03.928 INFO kablam! 9 |     let number_stream = iter_ok::<_,()>((0..6));
Sep 01 04:59:03.928 INFO kablam!   |                                         ^^^^^^ help: remove these parentheses
Sep 01 04:59:03.928 INFO kablam!   |
Sep 01 04:59:03.928 INFO kablam!   = note: #[warn(unused_parens)] on by default
Sep 01 04:59:03.929 INFO kablam! 
Sep 01 04:59:05.658 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.89s
Sep 01 04:59:05.663 INFO kablam! su: No module specific data is present
Sep 01 04:59:06.132 INFO running `"docker" "rm" "-f" "b751bf6f7fcba5e49fc143e39816e986efe1ce3a50927067428be84d1aa01caf"`
Sep 01 04:59:06.215 INFO blam! b751bf6f7fcba5e49fc143e39816e986efe1ce3a50927067428be84d1aa01caf