Nov 01 23:07:48.811 INFO checking filters-0.3.0 against master#05812fa8c588473f03e3fa7cf59cd84f4f37c715 for pr-55538
Nov 01 23:07:48.811 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-5/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-55538/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/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 +05812fa8c588473f03e3fa7cf59cd84f4f37c715-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"`
Nov 01 23:07:49.230 INFO blam! 286df6b211091a79e6710e5e8db48337adb591c12caea00e28bf15b95922ecf7
Nov 01 23:07:49.236 INFO running `"docker" "start" "-a" "286df6b211091a79e6710e5e8db48337adb591c12caea00e28bf15b95922ecf7"`
Nov 01 23:07:50.360 INFO kablam! usermod: no changes
Nov 01 23:07:50.433 INFO kablam!     Checking filters v0.3.0 (/source)
Nov 01 23:07:51.578 INFO kablam! warning: unused variable: `r`
Nov 01 23:07:51.578 INFO kablam!    --> src/failable/filter.rs:358:18
Nov 01 23:07:51.578 INFO kablam!     |
Nov 01 23:07:51.578 INFO kablam! 358 |         let a = |r: &i32| -> Result<bool, StupError> { Ok(true) };
Nov 01 23:07:51.579 INFO kablam!     |                  ^ help: consider using `_r` instead
Nov 01 23:07:51.579 INFO kablam!     |
Nov 01 23:07:51.579 INFO kablam!     = note: #[warn(unused_variables)] on by default
Nov 01 23:07:51.579 INFO kablam! 
Nov 01 23:07:51.764 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.36s
Nov 01 23:07:51.769 INFO kablam! su: No module specific data is present
Nov 01 23:07:52.301 INFO running `"docker" "rm" "-f" "286df6b211091a79e6710e5e8db48337adb591c12caea00e28bf15b95922ecf7"`
Nov 01 23:07:52.628 INFO blam! 286df6b211091a79e6710e5e8db48337adb591c12caea00e28bf15b95922ecf7