Dec 18 10:39:22.623 INFO checking superpixel-0.1.1 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 10:39:22.623 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/superpixel/0.1.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 10:39:22.896 INFO [stdout] e91ef51098f645088cc0f42cb5d52ff674401c285721c462011e0512677a51c1
Dec 18 10:39:22.898 INFO running `"docker" "start" "-a" "e91ef51098f645088cc0f42cb5d52ff674401c285721c462011e0512677a51c1"`
Dec 18 10:39:23.636 INFO [stderr]     Checking superpixel v0.1.1 (/opt/crater/workdir)
Dec 18 10:39:24.555 INFO [stderr] warning: unused variable: `idx`
Dec 18 10:39:24.555 INFO [stderr]    --> src/lib.rs:451:17
Dec 18 10:39:24.555 INFO [stderr]     |
Dec 18 10:39:24.555 INFO [stderr] 451 |             let idx = y * width + x;
Dec 18 10:39:24.555 INFO [stderr]     |                 ^^^ help: consider using `_idx` instead
Dec 18 10:39:24.555 INFO [stderr]     |
Dec 18 10:39:24.555 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 18 10:39:24.555 INFO [stderr] 
Dec 18 10:39:24.564 INFO [stderr] warning: unused variable: `klabels`
Dec 18 10:39:24.564 INFO [stderr]    --> src/lib.rs:438:5
Dec 18 10:39:24.564 INFO [stderr]     |
Dec 18 10:39:24.564 INFO [stderr] 438 |     klabels: &Vec<i32>,
Dec 18 10:39:24.564 INFO [stderr]     |     ^^^^^^^ help: consider using `_klabels` instead
Dec 18 10:39:24.564 INFO [stderr] 
Dec 18 10:39:24.564 INFO [stderr] warning: unused variable: `outline_color`
Dec 18 10:39:24.564 INFO [stderr]    --> src/lib.rs:440:5
Dec 18 10:39:24.564 INFO [stderr]     |
Dec 18 10:39:24.564 INFO [stderr] 440 |     outline_color: &image::Rgb<u8>
Dec 18 10:39:24.564 INFO [stderr]     |     ^^^^^^^^^^^^^ help: consider using `_outline_color` instead
Dec 18 10:39:24.564 INFO [stderr] 
Dec 18 10:39:24.640 INFO [stderr] warning: unused variable: `idx`
Dec 18 10:39:24.640 INFO [stderr]    --> src/lib.rs:451:17
Dec 18 10:39:24.640 INFO [stderr]     |
Dec 18 10:39:24.640 INFO [stderr] 451 |             let idx = y * width + x;
Dec 18 10:39:24.640 INFO [stderr]     |                 ^^^ help: consider using `_idx` instead
Dec 18 10:39:24.640 INFO [stderr]     |
Dec 18 10:39:24.640 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 18 10:39:24.640 INFO [stderr] 
Dec 18 10:39:24.640 INFO [stderr] warning: unused variable: `klabels`
Dec 18 10:39:24.640 INFO [stderr]    --> src/lib.rs:438:5
Dec 18 10:39:24.640 INFO [stderr]     |
Dec 18 10:39:24.640 INFO [stderr] 438 |     klabels: &Vec<i32>,
Dec 18 10:39:24.640 INFO [stderr]     |     ^^^^^^^ help: consider using `_klabels` instead
Dec 18 10:39:24.640 INFO [stderr] 
Dec 18 10:39:24.640 INFO [stderr] warning: unused variable: `outline_color`
Dec 18 10:39:24.640 INFO [stderr]    --> src/lib.rs:440:5
Dec 18 10:39:24.640 INFO [stderr]     |
Dec 18 10:39:24.640 INFO [stderr] 440 |     outline_color: &image::Rgb<u8>
Dec 18 10:39:24.640 INFO [stderr]     |     ^^^^^^^^^^^^^ help: consider using `_outline_color` instead
Dec 18 10:39:24.640 INFO [stderr] 
Dec 18 10:39:24.713 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
Dec 18 10:39:25.130 INFO running `"docker" "inspect" "e91ef51098f645088cc0f42cb5d52ff674401c285721c462011e0512677a51c1"`
Dec 18 10:39:25.316 INFO running `"docker" "rm" "-f" "e91ef51098f645088cc0f42cb5d52ff674401c285721c462011e0512677a51c1"`
Dec 18 10:39:25.592 INFO [stdout] e91ef51098f645088cc0f42cb5d52ff674401c285721c462011e0512677a51c1