Aug 01 21:14:32.784 INFO checking stream-combinators-0.1.0 against 1.27.2+tmplazy for lazy_static-1
Aug 01 21:14:32.784 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 21:14:32.784 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 21:14:32.785 INFO running `"docker" "create" "-v" "/tmp/crater.5O8ra909lTSq:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-1/1.27.2+tmplazy:/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" "-v" "/home/ec2-user/crater/./work/local/cargo-home/git:/cargo-home/git:rw,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +1.27.2 check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Aug 01 21:14:33.024 INFO blam! f74fa194be81a2bce39201539403b5d18ee1c89cbc3fcae1ddf8ef8cc1e08971
Aug 01 21:14:33.026 INFO running `"docker" "start" "-a" "f74fa194be81a2bce39201539403b5d18ee1c89cbc3fcae1ddf8ef8cc1e08971"`
Aug 01 21:14:34.595 INFO kablam!     Checking tokio-stdin v0.1.1
Aug 01 21:14:34.598 INFO kablam!     Checking stream-combinators v0.1.0 (file:///source)
Aug 01 21:14:36.612 INFO kablam! warning: unnecessary parentheses around function argument
Aug 01 21:14:36.612 INFO kablam!  --> examples/into_pairs.rs:9:41
Aug 01 21:14:36.612 INFO kablam!   |
Aug 01 21:14:36.612 INFO kablam! 9 |     let number_stream = iter_ok::<_,()>((0..6));
Aug 01 21:14:36.612 INFO kablam!   |                                         ^^^^^^ help: remove these parentheses
Aug 01 21:14:36.616 INFO kablam!   |
Aug 01 21:14:36.617 INFO kablam!   = note: #[warn(unused_parens)] on by default
Aug 01 21:14:36.617 INFO kablam! 
Aug 01 21:14:37.550 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 3.23s
Aug 01 21:14:37.556 INFO kablam! su: No module specific data is present
Aug 01 21:14:38.108 INFO running `"docker" "rm" "-f" "f74fa194be81a2bce39201539403b5d18ee1c89cbc3fcae1ddf8ef8cc1e08971"`
Aug 01 21:14:38.299 INFO blam! f74fa194be81a2bce39201539403b5d18ee1c89cbc3fcae1ddf8ef8cc1e08971