Sep 06 07:03:35.455 INFO checking filters-0.2.0 against master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6 for pr-53854
Sep 06 07:03:35.455 INFO running: cargo +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets
Sep 06 07:03:35.455 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53854/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-0/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/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 +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 07:03:35.584 INFO blam! 0322dbe238cde632a26dd0922428c7741b8d01ff4502677d510a1aa0997c2406
Sep 06 07:03:35.585 INFO running `"docker" "start" "-a" "0322dbe238cde632a26dd0922428c7741b8d01ff4502677d510a1aa0997c2406"`
Sep 06 07:03:36.393 INFO kablam! usermod: no changes
Sep 06 07:03:36.434 INFO kablam!     Checking filters v0.2.0 (file:///source)
Sep 06 07:03:36.863 INFO kablam! warning: unused variable: `r`
Sep 06 07:03:36.863 INFO kablam!    --> src/failable/filter.rs:352:18
Sep 06 07:03:36.863 INFO kablam!     |
Sep 06 07:03:36.863 INFO kablam! 352 |         let a = |r: &i32| -> Result<bool, StupError> { Ok(true) };
Sep 06 07:03:36.863 INFO kablam!     |                  ^ help: consider using `_r` instead
Sep 06 07:03:36.863 INFO kablam!     |
Sep 06 07:03:36.863 INFO kablam!     = note: #[warn(unused_variables)] on by default
Sep 06 07:03:36.863 INFO kablam! 
Sep 06 07:03:36.937 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
Sep 06 07:03:36.938 INFO kablam! su: No module specific data is present
Sep 06 07:03:37.510 INFO running `"docker" "rm" "-f" "0322dbe238cde632a26dd0922428c7741b8d01ff4502677d510a1aa0997c2406"`
Sep 06 07:03:37.604 INFO blam! 0322dbe238cde632a26dd0922428c7741b8d01ff4502677d510a1aa0997c2406