Sep 06 06:50:01.369 INFO checking futures-0.1.23 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 06 06:50:01.369 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 06 06:50:01.370 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-0/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/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=1000" "-e" "CMD=cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 06:50:01.579 INFO blam! 40956424480c36c698236af480f0bf216f90c883e9adb2b895a3af51c7f6c97c
Sep 06 06:50:01.580 INFO running `"docker" "start" "-a" "40956424480c36c698236af480f0bf216f90c883e9adb2b895a3af51c7f6c97c"`
Sep 06 06:50:02.273 INFO kablam! usermod: no changes
Sep 06 06:50:02.341 INFO kablam!     Checking futures v0.1.23 (file:///source)
Sep 06 06:50:10.026 INFO kablam! warning: unnecessary parentheses around function argument
Sep 06 06:50:10.026 INFO kablam!   --> tests/bilock.rs:62:38
Sep 06 06:50:10.026 INFO kablam!    |
Sep 06 06:50:10.026 INFO kablam! 62 |     let b = stream::iter_ok::<_, ()>((0..N)).fold(b, |b, _n| {
Sep 06 06:50:10.026 INFO kablam!    |                                      ^^^^^^ help: remove these parentheses
Sep 06 06:50:10.026 INFO kablam!    |
Sep 06 06:50:10.026 INFO kablam!    = note: #[warn(unused_parens)] on by default
Sep 06 06:50:10.026 INFO kablam! 
Sep 06 06:50:12.746 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 10.46s
Sep 06 06:50:12.764 INFO kablam! su: No module specific data is present
Sep 06 06:50:14.339 INFO running `"docker" "rm" "-f" "40956424480c36c698236af480f0bf216f90c883e9adb2b895a3af51c7f6c97c"`
Sep 06 06:50:14.455 INFO blam! 40956424480c36c698236af480f0bf216f90c883e9adb2b895a3af51c7f6c97c