Dec 17 19:06:42.284 INFO checking mwalczyk/gray_code_rs against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 19:06:42.284 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/mwalczyk/gray_code_rs:/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 17 19:06:42.696 INFO [stdout] 524c1b1589887e21b14a5a08110b6206d90e3bd429cf83bb25cd715ce6de86eb
Dec 17 19:06:42.702 INFO running `"docker" "start" "-a" "524c1b1589887e21b14a5a08110b6206d90e3bd429cf83bb25cd715ce6de86eb"`
Dec 17 19:06:44.261 INFO [stderr]     Checking either v1.3.0
Dec 17 19:06:44.261 INFO [stderr]     Checking bitflags v1.0.0
Dec 17 19:06:44.261 INFO [stderr]     Checking num_cpus v1.7.0
Dec 17 19:06:44.264 INFO [stderr]     Checking num-bigint v0.1.40
Dec 17 19:06:44.908 INFO [stderr]     Checking png v0.11.0
Dec 17 19:06:45.380 INFO [stderr]     Checking coco v0.1.1
Dec 17 19:06:46.104 INFO [stderr]     Checking rayon-core v1.2.1
Dec 17 19:06:47.249 INFO [stderr]     Checking rayon v0.8.2
Dec 17 19:06:47.883 INFO [stderr]     Checking num-rational v0.1.39
Dec 17 19:06:48.888 INFO [stderr]     Checking num v0.1.40
Dec 17 19:06:50.720 INFO [stderr]     Checking jpeg-decoder v0.1.13
Dec 17 19:06:51.780 INFO [stderr]     Checking image v0.17.0
Dec 17 19:06:56.168 INFO [stderr]     Checking rust-test v0.1.0 (/opt/crater/workdir)
Dec 17 19:06:56.604 INFO [stderr] warning: unused variable: `orientation`
Dec 17 19:06:56.604 INFO [stderr]   --> src/main.rs:31:9
Dec 17 19:06:56.604 INFO [stderr]    |
Dec 17 19:06:56.604 INFO [stderr] 31 |     let orientation = length;
Dec 17 19:06:56.604 INFO [stderr]    |         ^^^^^^^^^^^ help: consider using `_orientation` instead
Dec 17 19:06:56.604 INFO [stderr]    |
Dec 17 19:06:56.604 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 19:06:56.604 INFO [stderr] 
Dec 17 19:06:56.604 INFO [stderr] warning: unused variable: `y`
Dec 17 19:06:56.604 INFO [stderr]   --> src/main.rs:41:17
Dec 17 19:06:56.604 INFO [stderr]    |
Dec 17 19:06:56.604 INFO [stderr] 41 |         for (x, y, pixel) in image_buffer.enumerate_pixels_mut() {
Dec 17 19:06:56.604 INFO [stderr]    |                 ^ help: consider using `_y` instead
Dec 17 19:06:56.604 INFO [stderr] 
Dec 17 19:06:56.612 INFO [stderr] warning: variant is never constructed: `HORIZONTAL`
Dec 17 19:06:56.612 INFO [stderr]  --> src/main.rs:8:5
Dec 17 19:06:56.612 INFO [stderr]   |
Dec 17 19:06:56.612 INFO [stderr] 8 |     HORIZONTAL
Dec 17 19:06:56.612 INFO [stderr]   |     ^^^^^^^^^^
Dec 17 19:06:56.612 INFO [stderr]   |
Dec 17 19:06:56.612 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 19:06:56.612 INFO [stderr] 
Dec 17 19:06:56.892 INFO [stderr] warning: unused variable: `orientation`
Dec 17 19:06:56.892 INFO [stderr]   --> src/main.rs:31:9
Dec 17 19:06:56.892 INFO [stderr]    |
Dec 17 19:06:56.892 INFO [stderr] 31 |     let orientation = length;
Dec 17 19:06:56.892 INFO [stderr]    |         ^^^^^^^^^^^ help: consider using `_orientation` instead
Dec 17 19:06:56.892 INFO [stderr]    |
Dec 17 19:06:56.892 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 19:06:56.892 INFO [stderr] 
Dec 17 19:06:56.892 INFO [stderr] warning: unused variable: `y`
Dec 17 19:06:56.892 INFO [stderr]   --> src/main.rs:41:17
Dec 17 19:06:56.892 INFO [stderr]    |
Dec 17 19:06:56.892 INFO [stderr] 41 |         for (x, y, pixel) in image_buffer.enumerate_pixels_mut() {
Dec 17 19:06:56.892 INFO [stderr]    |                 ^ help: consider using `_y` instead
Dec 17 19:06:56.892 INFO [stderr] 
Dec 17 19:06:56.895 INFO [stderr] warning: variant is never constructed: `HORIZONTAL`
Dec 17 19:06:56.895 INFO [stderr]  --> src/main.rs:8:5
Dec 17 19:06:56.895 INFO [stderr]   |
Dec 17 19:06:56.895 INFO [stderr] 8 |     HORIZONTAL
Dec 17 19:06:56.895 INFO [stderr]   |     ^^^^^^^^^^
Dec 17 19:06:56.895 INFO [stderr]   |
Dec 17 19:06:56.895 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 19:06:56.895 INFO [stderr] 
Dec 17 19:06:56.956 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.81s
Dec 17 19:06:57.910 INFO running `"docker" "inspect" "524c1b1589887e21b14a5a08110b6206d90e3bd429cf83bb25cd715ce6de86eb"`
Dec 17 19:06:58.163 INFO running `"docker" "rm" "-f" "524c1b1589887e21b14a5a08110b6206d90e3bd429cf83bb25cd715ce6de86eb"`
Dec 17 19:06:58.456 INFO [stdout] 524c1b1589887e21b14a5a08110b6206d90e3bd429cf83bb25cd715ce6de86eb