[INFO] cloning repository firefox7025/ImageSorter
[INFO] running `"git" "clone" "--bare" "git://github.com/firefox7025/ImageSorter.git" "work/cache/sources/gh/firefox7025/ImageSorter"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/firefox7025/ImageSorter'...
[INFO] running `"git" "clone" "work/cache/sources/gh/firefox7025/ImageSorter" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/firefox7025/ImageSorter"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/firefox7025/ImageSorter'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/firefox7025/ImageSorter" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/firefox7025/ImageSorter"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/firefox7025/ImageSorter'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d551cd493613fd0acedda144da83bb53127af8e9
[INFO] sha for GitHub repo firefox7025/ImageSorter: d551cd493613fd0acedda144da83bb53127af8e9
[INFO] validating manifest of firefox7025/ImageSorter on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of firefox7025/ImageSorter on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing firefox7025/ImageSorter
[INFO] finished frobbing firefox7025/ImageSorter
[INFO] frobbed toml for firefox7025/ImageSorter written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/firefox7025/ImageSorter/Cargo.toml
[INFO] started frobbing firefox7025/ImageSorter
[INFO] finished frobbing firefox7025/ImageSorter
[INFO] frobbed toml for firefox7025/ImageSorter written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/firefox7025/ImageSorter/Cargo.toml
[INFO] crate firefox7025/ImageSorter already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking firefox7025/ImageSorter against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-3/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/firefox7025/ImageSorter:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] fd62596040859f05d976760560d357c81ab2741a140a55378fe422925bb6edd5
[INFO] running `"docker" "start" "-a" "fd62596040859f05d976760560d357c81ab2741a140a55378fe422925bb6edd5"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]     Checking pretty_env_logger v0.2.4
[INFO] [stderr]     Checking rayon v1.0.2
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking image v0.19.0
[INFO] [stderr]     Checking img_hash v2.1.0
[INFO] [stderr]     Checking image_sorter v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/main.rs:109:27
[INFO] [stderr]     |
[INFO] [stderr] 109 |             .min_by_key(|(x, y)| hashimages::image_diff(val, y)).unwrap();
[INFO] [stderr]     |                           ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dist_ratio`
[INFO] [stderr]   --> src/main.rs:55:9
[INFO] [stderr]    |
[INFO] [stderr] 55 |     let dist_ratio = matches.value_of("Similarity").unwrap_or("20");
[INFO] [stderr]    |         ^^^^^^^^^^ help: consider prefixing with an underscore: `_dist_ratio`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `output_directory` is assigned to, but never used
[INFO] [stderr]   --> src/main.rs:61:9
[INFO] [stderr]    |
[INFO] [stderr] 61 |     let output_directory;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_output_directory` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `output_directory` is never read
[INFO] [stderr]   --> src/main.rs:87:13
[INFO] [stderr]    |
[INFO] [stderr] 87 |             output_directory = path;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/main.rs:109:27
[INFO] [stderr]     |
[INFO] [stderr] 109 |             .min_by_key(|(x, y)| hashimages::image_diff(val, y)).unwrap();
[INFO] [stderr]     |                           ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dist_ratio`
[INFO] [stderr]   --> src/main.rs:55:9
[INFO] [stderr]    |
[INFO] [stderr] 55 |     let dist_ratio = matches.value_of("Similarity").unwrap_or("20");
[INFO] [stderr]    |         ^^^^^^^^^^ help: consider prefixing with an underscore: `_dist_ratio`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `output_directory` is assigned to, but never used
[INFO] [stderr]   --> src/main.rs:61:9
[INFO] [stderr]    |
[INFO] [stderr] 61 |     let output_directory;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_output_directory` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `output_directory` is never read
[INFO] [stderr]   --> src/main.rs:87:13
[INFO] [stderr]    |
[INFO] [stderr] 87 |             output_directory = path;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.94s
[INFO] running `"docker" "inspect" "fd62596040859f05d976760560d357c81ab2741a140a55378fe422925bb6edd5"`
[INFO] running `"docker" "rm" "-f" "fd62596040859f05d976760560d357c81ab2741a140a55378fe422925bb6edd5"`
[INFO] [stdout] fd62596040859f05d976760560d357c81ab2741a140a55378fe422925bb6edd5