Sep 10 19:04:42.252 INFO checking filters-0.3.0 against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 19:04:42.252 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 19:04:42.252 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-6/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/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 +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 19:04:42.434 INFO blam! 9ee653a20f38f3331729cf4405a2e4dbc087d687599f1abcc612074755f19838
Sep 10 19:04:42.436 INFO running `"docker" "start" "-a" "9ee653a20f38f3331729cf4405a2e4dbc087d687599f1abcc612074755f19838"`
Sep 10 19:04:43.625 INFO kablam! usermod: no changes
Sep 10 19:04:43.655 INFO kablam!     Checking filters v0.3.0 (file:///source)
Sep 10 19:04:44.258 INFO kablam! warning: unused variable: `r`
Sep 10 19:04:44.258 INFO kablam!    --> src/failable/filter.rs:358:18
Sep 10 19:04:44.258 INFO kablam!     |
Sep 10 19:04:44.258 INFO kablam! 358 |         let a = |r: &i32| -> Result<bool, StupError> { Ok(true) };
Sep 10 19:04:44.258 INFO kablam!     |                  ^ help: consider using `_r` instead
Sep 10 19:04:44.258 INFO kablam!     |
Sep 10 19:04:44.258 INFO kablam!     = note: #[warn(unused_variables)] on by default
Sep 10 19:04:44.258 INFO kablam! 
Sep 10 19:04:44.400 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
Sep 10 19:04:44.402 INFO kablam! su: No module specific data is present
Sep 10 19:04:45.272 INFO running `"docker" "rm" "-f" "9ee653a20f38f3331729cf4405a2e4dbc087d687599f1abcc612074755f19838"`
Sep 10 19:04:45.333 INFO blam! 9ee653a20f38f3331729cf4405a2e4dbc087d687599f1abcc612074755f19838