Aug 31 12:04:21.444 INFO checking stream-combinators-0.1.0 against master#d0d81b7fc1421859ba0218e8a437af29ae3b0967 for pr-53578
Aug 31 12:04:21.444 INFO running: cargo +d0d81b7fc1421859ba0218e8a437af29ae3b0967-alt check --frozen --all --all-targets
Aug 31 12:04:21.444 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53578/master#d0d81b7fc1421859ba0218e8a437af29ae3b0967:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578/worker-1/master#d0d81b7fc1421859ba0218e8a437af29ae3b0967:/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 +d0d81b7fc1421859ba0218e8a437af29ae3b0967-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 31 12:04:21.686 INFO blam! 1d312dbe2e30df6a9aa74de1202edded41a65a9084c7561dada9974630cf3bca
Aug 31 12:04:21.689 INFO running `"docker" "start" "-a" "1d312dbe2e30df6a9aa74de1202edded41a65a9084c7561dada9974630cf3bca"`
Aug 31 12:04:22.455 INFO kablam!     Checking tokio-stdin v0.1.1
Aug 31 12:04:22.455 INFO kablam!     Checking stream-combinators v0.1.0 (file:///source)
Aug 31 12:04:23.734 INFO kablam! warning: unnecessary parentheses around function argument
Aug 31 12:04:23.734 INFO kablam!  --> examples/into_pairs.rs:9:41
Aug 31 12:04:23.734 INFO kablam!   |
Aug 31 12:04:23.734 INFO kablam! 9 |     let number_stream = iter_ok::<_,()>((0..6));
Aug 31 12:04:23.734 INFO kablam!   |                                         ^^^^^^ help: remove these parentheses
Aug 31 12:04:23.734 INFO kablam!   |
Aug 31 12:04:23.734 INFO kablam!   = note: #[warn(unused_parens)] on by default
Aug 31 12:04:23.734 INFO kablam! 
Aug 31 12:04:25.179 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.83s
Aug 31 12:04:25.185 INFO kablam! su: No module specific data is present
Aug 31 12:04:25.557 INFO running `"docker" "rm" "-f" "1d312dbe2e30df6a9aa74de1202edded41a65a9084c7561dada9974630cf3bca"`
Aug 31 12:04:25.671 INFO blam! 1d312dbe2e30df6a9aa74de1202edded41a65a9084c7561dada9974630cf3bca