Sep 04 17:46:32.546 INFO checking filters-0.2.0 against master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c for pr-53893
Sep 04 17:46:32.546 INFO running: cargo +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets
Sep 04 17:46:32.546 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53893/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-0/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 17:46:32.693 INFO blam! f4732e28510cc41cc91c1c74e5f1222ea8e2183f746ec71dbc2ab6f5ae967db7
Sep 04 17:46:32.695 INFO running `"docker" "start" "-a" "f4732e28510cc41cc91c1c74e5f1222ea8e2183f746ec71dbc2ab6f5ae967db7"`
Sep 04 17:46:33.335 INFO kablam!     Checking filters v0.2.0 (file:///source)
Sep 04 17:46:34.650 INFO kablam! warning: unused variable: `r`
Sep 04 17:46:34.650 INFO kablam!    --> src/failable/filter.rs:352:18
Sep 04 17:46:34.650 INFO kablam!     |
Sep 04 17:46:34.650 INFO kablam! 352 |         let a = |r: &i32| -> Result<bool, StupError> { Ok(true) };
Sep 04 17:46:34.650 INFO kablam!     |                  ^ help: consider using `_r` instead
Sep 04 17:46:34.650 INFO kablam!     |
Sep 04 17:46:34.650 INFO kablam!     = note: #[warn(unused_variables)] on by default
Sep 04 17:46:34.650 INFO kablam! 
Sep 04 17:46:34.845 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.52s
Sep 04 17:46:34.848 INFO kablam! su: No module specific data is present
Sep 04 17:46:35.174 INFO running `"docker" "rm" "-f" "f4732e28510cc41cc91c1c74e5f1222ea8e2183f746ec71dbc2ab6f5ae967db7"`
Sep 04 17:46:35.289 INFO blam! f4732e28510cc41cc91c1c74e5f1222ea8e2183f746ec71dbc2ab6f5ae967db7