Dec 04 14:48:41.194 INFO checking m-g-dev/fbsep against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 14:48:41.194 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-3/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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"`
Dec 04 14:48:41.666 INFO [stdout] 09f909e2e546cec8a42dc439af0f8007fdd36849bd03b2e7d5b544a482b397cb
Dec 04 14:48:41.666 INFO running `"docker" "start" "-a" "09f909e2e546cec8a42dc439af0f8007fdd36849bd03b2e7d5b544a482b397cb"`
Dec 04 14:48:42.179 INFO [stderr] usermod: no changes
Dec 04 14:48:42.221 INFO [stderr]     Checking fbsep v0.1.0 (/source)
Dec 04 14:48:42.480 INFO [stderr] warning: unused variable: `greyscale`
Dec 04 14:48:42.480 INFO [stderr]  --> src/lib.rs:1:21
Dec 04 14:48:42.480 INFO [stderr]   |
Dec 04 14:48:42.480 INFO [stderr] 1 | pub fn binarization(greyscale: &[u8]) -> i32 {
Dec 04 14:48:42.480 INFO [stderr]   |                     ^^^^^^^^^ help: consider using `_greyscale` instead
Dec 04 14:48:42.513 INFO [stderr]   |
Dec 04 14:48:42.513 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 04 14:48:42.513 INFO [stderr] 
Dec 04 14:48:42.581 INFO [stderr] warning: unused variable: `greyscale`
Dec 04 14:48:42.581 INFO [stderr]  --> src/lib.rs:1:21
Dec 04 14:48:42.581 INFO [stderr]   |
Dec 04 14:48:42.581 INFO [stderr] 1 | pub fn binarization(greyscale: &[u8]) -> i32 {
Dec 04 14:48:42.581 INFO [stderr]   |                     ^^^^^^^^^ help: consider using `_greyscale` instead
Dec 04 14:48:42.581 INFO [stderr]   |
Dec 04 14:48:42.581 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 04 14:48:42.581 INFO [stderr] 
Dec 04 14:48:42.581 INFO [stderr] warning: function is never used: `a`
Dec 04 14:48:42.581 INFO [stderr]  --> src/lib.rs:9:5
Dec 04 14:48:42.581 INFO [stderr]   |
Dec 04 14:48:42.581 INFO [stderr] 9 |     fn a() {
Dec 04 14:48:42.581 INFO [stderr]   |     ^^^^^^
Dec 04 14:48:42.581 INFO [stderr]   |
Dec 04 14:48:42.581 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 04 14:48:42.581 INFO [stderr] 
Dec 04 14:48:42.623 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
Dec 04 14:48:42.625 INFO [stderr] su: No module specific data is present
Dec 04 14:48:43.522 INFO running `"docker" "inspect" "09f909e2e546cec8a42dc439af0f8007fdd36849bd03b2e7d5b544a482b397cb"`
Dec 04 14:48:43.631 INFO running `"docker" "rm" "-f" "09f909e2e546cec8a42dc439af0f8007fdd36849bd03b2e7d5b544a482b397cb"`
Dec 04 14:48:43.772 INFO [stdout] 09f909e2e546cec8a42dc439af0f8007fdd36849bd03b2e7d5b544a482b397cb