Sep 04 17:46:27.108 INFO checking filters-0.3.0 against master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c for pr-53893
Sep 04 17:46:27.108 INFO running: cargo +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets
Sep 04 17:46:27.108 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53893/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-3/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/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 +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 17:46:27.281 INFO blam! 6a2dd99bcf40c9db3174a8889154bd1296ae9e45932ad2844bd3d7e95757a5d2
Sep 04 17:46:27.283 INFO running `"docker" "start" "-a" "6a2dd99bcf40c9db3174a8889154bd1296ae9e45932ad2844bd3d7e95757a5d2"`
Sep 04 17:46:27.932 INFO kablam!     Checking filters v0.3.0 (file:///source)
Sep 04 17:46:29.315 INFO kablam! warning: unused variable: `r`
Sep 04 17:46:29.315 INFO kablam!    --> src/failable/filter.rs:358:18
Sep 04 17:46:29.315 INFO kablam!     |
Sep 04 17:46:29.315 INFO kablam! 358 |         let a = |r: &i32| -> Result<bool, StupError> { Ok(true) };
Sep 04 17:46:29.315 INFO kablam!     |                  ^ help: consider using `_r` instead
Sep 04 17:46:29.315 INFO kablam!     |
Sep 04 17:46:29.315 INFO kablam!     = note: #[warn(unused_variables)] on by default
Sep 04 17:46:29.315 INFO kablam! 
Sep 04 17:46:29.560 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.64s
Sep 04 17:46:29.563 INFO kablam! su: No module specific data is present
Sep 04 17:46:30.035 INFO running `"docker" "rm" "-f" "6a2dd99bcf40c9db3174a8889154bd1296ae9e45932ad2844bd3d7e95757a5d2"`
Sep 04 17:46:30.141 INFO blam! 6a2dd99bcf40c9db3174a8889154bd1296ae9e45932ad2844bd3d7e95757a5d2