Sep 01 20:49:55.180 INFO checking filters-0.3.0 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53831
Sep 01 20:49:55.180 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 01 20:49:55.180 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53831/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-2/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 20:49:55.403 INFO blam! 8bf76995a046051a2ede76891bc2ac12dec69cda878e640b4db005ad22b203cc
Sep 01 20:49:55.405 INFO running `"docker" "start" "-a" "8bf76995a046051a2ede76891bc2ac12dec69cda878e640b4db005ad22b203cc"`
Sep 01 20:49:56.246 INFO kablam!     Checking filters v0.3.0 (file:///source)
Sep 01 20:49:57.311 INFO kablam! warning: unused variable: `r`
Sep 01 20:49:57.311 INFO kablam!    --> src/failable/filter.rs:358:18
Sep 01 20:49:57.311 INFO kablam!     |
Sep 01 20:49:57.311 INFO kablam! 358 |         let a = |r: &i32| -> Result<bool, StupError> { Ok(true) };
Sep 01 20:49:57.311 INFO kablam!     |                  ^ help: consider using `_r` instead
Sep 01 20:49:57.311 INFO kablam!     |
Sep 01 20:49:57.311 INFO kablam!     = note: #[warn(unused_variables)] on by default
Sep 01 20:49:57.311 INFO kablam! 
Sep 01 20:49:57.508 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.28s
Sep 01 20:49:57.511 INFO kablam! su: No module specific data is present
Sep 01 20:49:58.031 INFO running `"docker" "rm" "-f" "8bf76995a046051a2ede76891bc2ac12dec69cda878e640b4db005ad22b203cc"`
Sep 01 20:49:58.114 INFO blam! 8bf76995a046051a2ede76891bc2ac12dec69cda878e640b4db005ad22b203cc