Nov 01 23:07:47.536 INFO checking filters-0.3.0 against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Nov 01 23:07:47.536 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-7/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/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 +d7816399d50d407bbce1efe9dbadf8faaaf568fc-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 23:07:47.962 INFO blam! d682ca16167798cc020c463797974be9bc03ca52f0400d3189d172bfc58f0f75
Nov 01 23:07:47.963 INFO running `"docker" "start" "-a" "d682ca16167798cc020c463797974be9bc03ca52f0400d3189d172bfc58f0f75"`
Nov 01 23:07:49.340 INFO kablam! usermod: no changes
Nov 01 23:07:49.408 INFO kablam!     Checking filters v0.3.0 (/source)
Nov 01 23:07:50.980 INFO kablam! warning: unused variable: `r`
Nov 01 23:07:50.980 INFO kablam!    --> src/failable/filter.rs:358:18
Nov 01 23:07:50.980 INFO kablam!     |
Nov 01 23:07:50.980 INFO kablam! 358 |         let a = |r: &i32| -> Result<bool, StupError> { Ok(true) };
Nov 01 23:07:50.980 INFO kablam!     |                  ^ help: consider using `_r` instead
Nov 01 23:07:50.980 INFO kablam!     |
Nov 01 23:07:50.980 INFO kablam!     = note: #[warn(unused_variables)] on by default
Nov 01 23:07:50.980 INFO kablam! 
Nov 01 23:07:51.164 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.78s
Nov 01 23:07:51.164 INFO kablam! su: No module specific data is present
Nov 01 23:07:51.697 INFO running `"docker" "rm" "-f" "d682ca16167798cc020c463797974be9bc03ca52f0400d3189d172bfc58f0f75"`
Nov 01 23:07:51.952 INFO blam! d682ca16167798cc020c463797974be9bc03ca52f0400d3189d172bfc58f0f75