[INFO] updating cached repository firefox7025/DataCleaner
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/firefox7025/DataCleaner
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/firefox7025/DataCleaner" "work/ex/beta-1.38-1/sources/1.37.0/gh/firefox7025/DataCleaner"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/firefox7025/DataCleaner'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/firefox7025/DataCleaner" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/firefox7025/DataCleaner"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/firefox7025/DataCleaner'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b551cbcb2ed88c3db87bbeb050157c58f2940027
[INFO] sha for GitHub repo firefox7025/DataCleaner: b551cbcb2ed88c3db87bbeb050157c58f2940027
[INFO] validating manifest of firefox7025/DataCleaner on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of firefox7025/DataCleaner on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing firefox7025/DataCleaner
[INFO] finished frobbing firefox7025/DataCleaner
[INFO] frobbed toml for firefox7025/DataCleaner written to work/ex/beta-1.38-1/sources/1.37.0/gh/firefox7025/DataCleaner/Cargo.toml
[INFO] started frobbing firefox7025/DataCleaner
[INFO] finished frobbing firefox7025/DataCleaner
[INFO] frobbed toml for firefox7025/DataCleaner written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/firefox7025/DataCleaner/Cargo.toml
[INFO] crate firefox7025/DataCleaner already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing firefox7025/DataCleaner against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/firefox7025/DataCleaner:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] caa5f35f6a51ddc922806546f77ce63e04b98cbf92f8ba46d1fad68ad2b7cc5a
[INFO] running `"docker" "start" "-a" "caa5f35f6a51ddc922806546f77ce63e04b98cbf92f8ba46d1fad68ad2b7cc5a"`
[INFO] [stderr]    Compiling failure_derive v0.1.4
[INFO] [stderr]    Compiling serde_json v1.0.34
[INFO] [stderr]    Compiling simplelog v0.5.3
[INFO] [stderr]    Compiling image v0.19.0
[INFO] [stderr]    Compiling failure v0.1.4
[INFO] [stderr]    Compiling rustfix v0.4.4
[INFO] [stderr]    Compiling img_hash v2.1.0
[INFO] [stderr]    Compiling image_sorter v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `image_hash_combos`
[INFO] [stderr]   --> src/main.rs:63:9
[INFO] [stderr]    |
[INFO] [stderr] 63 |     let image_hash_combos: Vec<_> = images.par_iter()
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_image_hash_combos`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `diff`
[INFO] [stderr]   --> src/hasher.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn diff(hash1: ImageHash, hash2: ImageHash) -> f32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `hash`
[INFO] [stderr]   --> src/main.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     hash: img_hash::ImageHash,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `path`
[INFO] [stderr]   --> src/main.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     path: PathBuf,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.85s
[INFO] running `"docker" "inspect" "caa5f35f6a51ddc922806546f77ce63e04b98cbf92f8ba46d1fad68ad2b7cc5a"`
[INFO] running `"docker" "rm" "-f" "caa5f35f6a51ddc922806546f77ce63e04b98cbf92f8ba46d1fad68ad2b7cc5a"`
[INFO] [stdout] caa5f35f6a51ddc922806546f77ce63e04b98cbf92f8ba46d1fad68ad2b7cc5a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/firefox7025/DataCleaner:/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=warn" "-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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9fef2593ec27b07de1c7edb6f2e4191ae711217bf89d55d177a1b32ff9a2ca58
[INFO] running `"docker" "start" "-a" "9fef2593ec27b07de1c7edb6f2e4191ae711217bf89d55d177a1b32ff9a2ca58"`
[INFO] [stderr]    Compiling image_sorter v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `image_hash_combos`
[INFO] [stderr]   --> src/main.rs:63:9
[INFO] [stderr]    |
[INFO] [stderr] 63 |     let image_hash_combos: Vec<_> = images.par_iter()
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_image_hash_combos`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `diff`
[INFO] [stderr]   --> src/hasher.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub fn diff(hash1: ImageHash, hash2: ImageHash) -> f32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `hash`
[INFO] [stderr]   --> src/main.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     hash: img_hash::ImageHash,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `path`
[INFO] [stderr]   --> src/main.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     path: PathBuf,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.53s
[INFO] running `"docker" "inspect" "9fef2593ec27b07de1c7edb6f2e4191ae711217bf89d55d177a1b32ff9a2ca58"`
[INFO] running `"docker" "rm" "-f" "9fef2593ec27b07de1c7edb6f2e4191ae711217bf89d55d177a1b32ff9a2ca58"`
[INFO] [stdout] 9fef2593ec27b07de1c7edb6f2e4191ae711217bf89d55d177a1b32ff9a2ca58
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/firefox7025/DataCleaner:/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=warn" "-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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] fc2b7f3272303d8fdfb35f44ef19bb51562fd5143dc28eb4fac465e0ad8cfb44
[INFO] running `"docker" "start" "-a" "fc2b7f3272303d8fdfb35f44ef19bb51562fd5143dc28eb4fac465e0ad8cfb44"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/image_sorter-40d3aa9a68e563f3
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "fc2b7f3272303d8fdfb35f44ef19bb51562fd5143dc28eb4fac465e0ad8cfb44"`
[INFO] running `"docker" "rm" "-f" "fc2b7f3272303d8fdfb35f44ef19bb51562fd5143dc28eb4fac465e0ad8cfb44"`
[INFO] [stdout] fc2b7f3272303d8fdfb35f44ef19bb51562fd5143dc28eb4fac465e0ad8cfb44