Sep 01 20:50:00.860 INFO checking filters-0.2.0 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53831
Sep 01 20:50:00.860 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 01 20:50:00.860 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53831/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-0/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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 +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 20:50:01.090 INFO blam! 08165ad502e1b6afa0cb0a5c37b7a3cfdc3342b7bc44dfb13d1b03a1e6e2624b
Sep 01 20:50:01.092 INFO running `"docker" "start" "-a" "08165ad502e1b6afa0cb0a5c37b7a3cfdc3342b7bc44dfb13d1b03a1e6e2624b"`
Sep 01 20:50:02.099 INFO kablam!     Checking filters v0.2.0 (file:///source)
Sep 01 20:50:03.132 INFO kablam! warning: unused variable: `r`
Sep 01 20:50:03.132 INFO kablam!    --> src/failable/filter.rs:352:18
Sep 01 20:50:03.132 INFO kablam!     |
Sep 01 20:50:03.132 INFO kablam! 352 |         let a = |r: &i32| -> Result<bool, StupError> { Ok(true) };
Sep 01 20:50:03.132 INFO kablam!     |                  ^ help: consider using `_r` instead
Sep 01 20:50:03.133 INFO kablam!     |
Sep 01 20:50:03.133 INFO kablam!     = note: #[warn(unused_variables)] on by default
Sep 01 20:50:03.133 INFO kablam! 
Sep 01 20:50:03.291 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
Sep 01 20:50:03.294 INFO kablam! su: No module specific data is present
Sep 01 20:50:03.802 INFO running `"docker" "rm" "-f" "08165ad502e1b6afa0cb0a5c37b7a3cfdc3342b7bc44dfb13d1b03a1e6e2624b"`
Sep 01 20:50:03.897 INFO blam! 08165ad502e1b6afa0cb0a5c37b7a3cfdc3342b7bc44dfb13d1b03a1e6e2624b