Sep 14 16:34:53.134 INFO checking filters-0.2.0 against master#90d36fb5905bbe5004f5b465ea14b53d10dae260 for pr-53578-1
Sep 14 16:34:53.134 INFO running: cargo +90d36fb5905bbe5004f5b465ea14b53d10dae260-alt check --frozen --all --all-targets
Sep 14 16:34:53.134 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-53578-1/master#90d36fb5905bbe5004f5b465ea14b53d10dae260:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578-1/worker-4/master#90d36fb5905bbe5004f5b465ea14b53d10dae260:/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 +90d36fb5905bbe5004f5b465ea14b53d10dae260-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 14 16:34:53.300 INFO blam! daaad630c9762fb5aed7a4d89128ea705d2a2aade89066fb33e26be7585c67f5
Sep 14 16:34:53.313 INFO running `"docker" "start" "-a" "daaad630c9762fb5aed7a4d89128ea705d2a2aade89066fb33e26be7585c67f5"`
Sep 14 16:34:54.767 INFO kablam! usermod: no changes
Sep 14 16:34:54.791 INFO kablam!     Checking filters v0.2.0 (file:///source)
Sep 14 16:34:55.272 INFO kablam! warning: unused variable: `r`
Sep 14 16:34:55.272 INFO kablam!    --> src/failable/filter.rs:352:18
Sep 14 16:34:55.272 INFO kablam!     |
Sep 14 16:34:55.272 INFO kablam! 352 |         let a = |r: &i32| -> Result<bool, StupError> { Ok(true) };
Sep 14 16:34:55.272 INFO kablam!     |                  ^ help: consider using `_r` instead
Sep 14 16:34:55.272 INFO kablam!     |
Sep 14 16:34:55.272 INFO kablam!     = note: #[warn(unused_variables)] on by default
Sep 14 16:34:55.272 INFO kablam! 
Sep 14 16:34:55.377 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
Sep 14 16:34:55.379 INFO kablam! su: No module specific data is present
Sep 14 16:34:56.011 INFO running `"docker" "rm" "-f" "daaad630c9762fb5aed7a4d89128ea705d2a2aade89066fb33e26be7585c67f5"`
Sep 14 16:34:56.083 INFO blam! daaad630c9762fb5aed7a4d89128ea705d2a2aade89066fb33e26be7585c67f5