Dec 19 17:01:22.917 INFO checking firefox7025/ImageSorter against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 17:01:22.917 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-4/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/firefox7025/ImageSorter:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 17:01:23.212 INFO [stdout] 943f7c7c40c60c0ad1e4aeee5e9d01ae1b9c6df5417f5f56679cff3c94a6efaa
Dec 19 17:01:23.214 INFO running `"docker" "start" "-a" "943f7c7c40c60c0ad1e4aeee5e9d01ae1b9c6df5417f5f56679cff3c94a6efaa"`
Dec 19 17:01:24.316 INFO [stderr]     Checking rayon-core v1.4.1
Dec 19 17:01:24.316 INFO [stderr]     Checking pretty_env_logger v0.2.4
Dec 19 17:01:25.332 INFO [stderr]     Checking rayon v1.0.2
Dec 19 17:01:28.865 INFO [stderr]     Checking jpeg-decoder v0.1.15
Dec 19 17:01:30.356 INFO [stderr]     Checking image v0.19.0
Dec 19 17:01:35.320 INFO [stderr]     Checking img_hash v2.1.0
Dec 19 17:01:36.386 INFO [stderr]     Checking image_sorter v0.1.0 (/opt/crater/workdir)
Dec 19 17:01:37.209 INFO [stderr] warning: unused variable: `x`
Dec 19 17:01:37.209 INFO [stderr]    --> src/main.rs:109:27
Dec 19 17:01:37.209 INFO [stderr]     |
Dec 19 17:01:37.209 INFO [stderr] 109 |             .min_by_key(|(x, y)| hashimages::image_diff(val, y)).unwrap();
Dec 19 17:01:37.209 INFO [stderr]     |                           ^ help: consider using `_x` instead
Dec 19 17:01:37.209 INFO [stderr]     |
Dec 19 17:01:37.209 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 19 17:01:37.209 INFO [stderr] 
Dec 19 17:01:37.209 INFO [stderr] warning: unused variable: `dist_ratio`
Dec 19 17:01:37.209 INFO [stderr]   --> src/main.rs:55:9
Dec 19 17:01:37.209 INFO [stderr]    |
Dec 19 17:01:37.209 INFO [stderr] 55 |     let dist_ratio = matches.value_of("Similarity").unwrap_or("20");
Dec 19 17:01:37.209 INFO [stderr]    |         ^^^^^^^^^^ help: consider using `_dist_ratio` instead
Dec 19 17:01:37.209 INFO [stderr] 
Dec 19 17:01:37.209 INFO [stderr] warning: variable `output_directory` is assigned to, but never used
Dec 19 17:01:37.209 INFO [stderr]   --> src/main.rs:61:9
Dec 19 17:01:37.209 INFO [stderr]    |
Dec 19 17:01:37.209 INFO [stderr] 61 |     let output_directory;
Dec 19 17:01:37.209 INFO [stderr]    |         ^^^^^^^^^^^^^^^^
Dec 19 17:01:37.209 INFO [stderr]    |
Dec 19 17:01:37.209 INFO [stderr]    = note: consider using `_output_directory` instead
Dec 19 17:01:37.210 INFO [stderr] 
Dec 19 17:01:37.210 INFO [stderr] warning: value assigned to `output_directory` is never read
Dec 19 17:01:37.210 INFO [stderr]   --> src/main.rs:87:13
Dec 19 17:01:37.210 INFO [stderr]    |
Dec 19 17:01:37.210 INFO [stderr] 87 |             output_directory = path;
Dec 19 17:01:37.210 INFO [stderr]    |             ^^^^^^^^^^^^^^^^
Dec 19 17:01:37.210 INFO [stderr]    |
Dec 19 17:01:37.210 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 19 17:01:37.210 INFO [stderr]    = help: maybe it is overwritten before being read?
Dec 19 17:01:37.210 INFO [stderr] 
Dec 19 17:01:37.212 INFO [stderr] warning: unused variable: `x`
Dec 19 17:01:37.212 INFO [stderr]    --> src/main.rs:109:27
Dec 19 17:01:37.213 INFO [stderr]     |
Dec 19 17:01:37.213 INFO [stderr] 109 |             .min_by_key(|(x, y)| hashimages::image_diff(val, y)).unwrap();
Dec 19 17:01:37.216 INFO [stderr]     |                           ^ help: consider using `_x` instead
Dec 19 17:01:37.216 INFO [stderr]     |
Dec 19 17:01:37.216 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 19 17:01:37.216 INFO [stderr] 
Dec 19 17:01:37.216 INFO [stderr] warning: unused variable: `dist_ratio`
Dec 19 17:01:37.216 INFO [stderr]   --> src/main.rs:55:9
Dec 19 17:01:37.216 INFO [stderr]    |
Dec 19 17:01:37.216 INFO [stderr] 55 |     let dist_ratio = matches.value_of("Similarity").unwrap_or("20");
Dec 19 17:01:37.216 INFO [stderr]    |         ^^^^^^^^^^ help: consider using `_dist_ratio` instead
Dec 19 17:01:37.216 INFO [stderr] 
Dec 19 17:01:37.216 INFO [stderr] warning: variable `output_directory` is assigned to, but never used
Dec 19 17:01:37.216 INFO [stderr]   --> src/main.rs:61:9
Dec 19 17:01:37.216 INFO [stderr]    |
Dec 19 17:01:37.216 INFO [stderr] 61 |     let output_directory;
Dec 19 17:01:37.216 INFO [stderr]    |         ^^^^^^^^^^^^^^^^
Dec 19 17:01:37.216 INFO [stderr]    |
Dec 19 17:01:37.216 INFO [stderr]    = note: consider using `_output_directory` instead
Dec 19 17:01:37.216 INFO [stderr] 
Dec 19 17:01:37.216 INFO [stderr] warning: value assigned to `output_directory` is never read
Dec 19 17:01:37.216 INFO [stderr]   --> src/main.rs:87:13
Dec 19 17:01:37.216 INFO [stderr]    |
Dec 19 17:01:37.216 INFO [stderr] 87 |             output_directory = path;
Dec 19 17:01:37.216 INFO [stderr]    |             ^^^^^^^^^^^^^^^^
Dec 19 17:01:37.216 INFO [stderr]    |
Dec 19 17:01:37.216 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 19 17:01:37.216 INFO [stderr]    = help: maybe it is overwritten before being read?
Dec 19 17:01:37.216 INFO [stderr] 
Dec 19 17:01:37.308 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.18s
Dec 19 17:01:38.028 INFO running `"docker" "inspect" "943f7c7c40c60c0ad1e4aeee5e9d01ae1b9c6df5417f5f56679cff3c94a6efaa"`
Dec 19 17:01:38.192 INFO running `"docker" "rm" "-f" "943f7c7c40c60c0ad1e4aeee5e9d01ae1b9c6df5417f5f56679cff3c94a6efaa"`
Dec 19 17:01:38.456 INFO [stdout] 943f7c7c40c60c0ad1e4aeee5e9d01ae1b9c6df5417f5f56679cff3c94a6efaa