Sep 04 04:50:59.651 INFO checking stream-combinators-0.1.0 against try#5fe695a3844714c70e8f7731a553f7947987a68a for pr-53913
Sep 04 04:50:59.651 INFO running: cargo +5fe695a3844714c70e8f7731a553f7947987a68a-alt check --frozen --all --all-targets
Sep 04 04:50:59.651 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53913/try#5fe695a3844714c70e8f7731a553f7947987a68a:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53913/worker-0/try#5fe695a3844714c70e8f7731a553f7947987a68a:/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 +5fe695a3844714c70e8f7731a553f7947987a68a-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 04:50:59.794 INFO blam! f6bcb86e0765ccefb0744da17d6e7694990db4315b9af4b78a65ccc74fb54faf
Sep 04 04:50:59.796 INFO running `"docker" "start" "-a" "f6bcb86e0765ccefb0744da17d6e7694990db4315b9af4b78a65ccc74fb54faf"`
Sep 04 04:51:01.048 INFO kablam!     Checking tokio-stdin v0.1.1
Sep 04 04:51:01.051 INFO kablam!     Checking stream-combinators v0.1.0 (file:///source)
Sep 04 04:51:02.196 INFO kablam! warning: unnecessary parentheses around function argument
Sep 04 04:51:02.196 INFO kablam!  --> examples/into_pairs.rs:9:41
Sep 04 04:51:02.196 INFO kablam!   |
Sep 04 04:51:02.196 INFO kablam! 9 |     let number_stream = iter_ok::<_,()>((0..6));
Sep 04 04:51:02.196 INFO kablam!   |                                         ^^^^^^ help: remove these parentheses
Sep 04 04:51:02.212 INFO kablam!   |
Sep 04 04:51:02.212 INFO kablam!   = note: #[warn(unused_parens)] on by default
Sep 04 04:51:02.212 INFO kablam! 
Sep 04 04:51:03.854 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.90s
Sep 04 04:51:03.861 INFO kablam! su: No module specific data is present
Sep 04 04:51:04.382 INFO running `"docker" "rm" "-f" "f6bcb86e0765ccefb0744da17d6e7694990db4315b9af4b78a65ccc74fb54faf"`
Sep 04 04:51:04.493 INFO blam! f6bcb86e0765ccefb0744da17d6e7694990db4315b9af4b78a65ccc74fb54faf