Sep 10 13:09:57.027 INFO checking peepable-0.1.1 against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 13:09:57.027 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 13:09:57.027 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-6/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/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 +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 13:09:57.240 INFO blam! 3c58e0cd3c951666c74ea917aac3937b4bc76ec10f2a602e9b33b1b10ae34eb4
Sep 10 13:09:57.242 INFO running `"docker" "start" "-a" "3c58e0cd3c951666c74ea917aac3937b4bc76ec10f2a602e9b33b1b10ae34eb4"`
Sep 10 13:09:58.309 INFO kablam! usermod: no changes
Sep 10 13:09:58.374 INFO kablam!     Checking peepable v0.1.1 (file:///source)
Sep 10 13:09:58.818 INFO kablam! warning: unnecessary parentheses around function argument
Sep 10 13:09:58.818 INFO kablam!    --> src/lib.rs:149:34
Sep 10 13:09:58.818 INFO kablam!     |
Sep 10 13:09:58.818 INFO kablam! 149 |         let iter = Peepable::new((0..4));
Sep 10 13:09:58.818 INFO kablam!     |                                  ^^^^^^ help: remove these parentheses
Sep 10 13:09:58.818 INFO kablam!     |
Sep 10 13:09:58.818 INFO kablam!     = note: #[warn(unused_parens)] on by default
Sep 10 13:09:58.818 INFO kablam! 
Sep 10 13:09:59.187 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
Sep 10 13:09:59.189 INFO kablam! su: No module specific data is present
Sep 10 13:09:59.885 INFO running `"docker" "rm" "-f" "3c58e0cd3c951666c74ea917aac3937b4bc76ec10f2a602e9b33b1b10ae34eb4"`
Sep 10 13:10:00.014 INFO blam! 3c58e0cd3c951666c74ea917aac3937b4bc76ec10f2a602e9b33b1b10ae34eb4