Oct 22 03:15:31.837 INFO checking filters-0.3.0 against master#155510e377ae2a8d8ee0dad1a5f809c9062a5526 for pr-55192
Oct 22 03:15:31.838 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192/worker-4/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-4/pr-55192/master#155510e377ae2a8d8ee0dad1a5f809c9062a5526:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +155510e377ae2a8d8ee0dad1a5f809c9062a5526-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Oct 22 03:15:32.365 INFO blam! 545e75a3a6725b7df590418d86378e6774374398f4d1046d0260006f61bdb146
Oct 22 03:15:32.367 INFO running `"docker" "start" "-a" "545e75a3a6725b7df590418d86378e6774374398f4d1046d0260006f61bdb146"`
Oct 22 03:15:33.506 INFO kablam! usermod: no changes
Oct 22 03:15:33.548 INFO kablam!     Checking filters v0.3.0 (/source)
Oct 22 03:15:34.629 INFO kablam! warning: unused variable: `r`
Oct 22 03:15:34.629 INFO kablam!    --> src/failable/filter.rs:358:18
Oct 22 03:15:34.630 INFO kablam!     |
Oct 22 03:15:34.630 INFO kablam! 358 |         let a = |r: &i32| -> Result<bool, StupError> { Ok(true) };
Oct 22 03:15:34.630 INFO kablam!     |                  ^ help: consider using `_r` instead
Oct 22 03:15:34.631 INFO kablam!     |
Oct 22 03:15:34.631 INFO kablam!     = note: #[warn(unused_variables)] on by default
Oct 22 03:15:34.631 INFO kablam! 
Oct 22 03:15:34.784 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.25s
Oct 22 03:15:34.784 INFO kablam! su: No module specific data is present
Oct 22 03:15:35.272 INFO running `"docker" "rm" "-f" "545e75a3a6725b7df590418d86378e6774374398f4d1046d0260006f61bdb146"`
Oct 22 03:15:35.545 INFO blam! 545e75a3a6725b7df590418d86378e6774374398f4d1046d0260006f61bdb146