Sep 01 22:14:06.320 INFO checking stream-combinators-0.1.0 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53851
Sep 01 22:14:06.320 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 01 22:14:06.320 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53851/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-2/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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 +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 22:14:06.567 INFO blam! 2e85bd63b1796668046ddaae83d670c8cae41c678a1c19a711618acfe0c2a0aa
Sep 01 22:14:06.570 INFO running `"docker" "start" "-a" "2e85bd63b1796668046ddaae83d670c8cae41c678a1c19a711618acfe0c2a0aa"`
Sep 01 22:14:07.226 INFO kablam!     Checking stream-combinators v0.1.0 (file:///source)
Sep 01 22:14:07.226 INFO kablam!     Checking tokio-stdin v0.1.1
Sep 01 22:14:08.373 INFO kablam! warning: unnecessary parentheses around function argument
Sep 01 22:14:08.373 INFO kablam!  --> examples/into_pairs.rs:9:41
Sep 01 22:14:08.373 INFO kablam!   |
Sep 01 22:14:08.373 INFO kablam! 9 |     let number_stream = iter_ok::<_,()>((0..6));
Sep 01 22:14:08.373 INFO kablam!   |                                         ^^^^^^ help: remove these parentheses
Sep 01 22:14:08.373 INFO kablam!   |
Sep 01 22:14:08.373 INFO kablam!   = note: #[warn(unused_parens)] on by default
Sep 01 22:14:08.373 INFO kablam! 
Sep 01 22:14:10.156 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 3.03s
Sep 01 22:14:10.165 INFO kablam! su: No module specific data is present
Sep 01 22:14:10.533 INFO running `"docker" "rm" "-f" "2e85bd63b1796668046ddaae83d670c8cae41c678a1c19a711618acfe0c2a0aa"`
Sep 01 22:14:10.630 INFO blam! 2e85bd63b1796668046ddaae83d670c8cae41c678a1c19a711618acfe0c2a0aa