[INFO] updating cached repository verdie-g/photo-mosaic
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/verdie-g/photo-mosaic
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/verdie-g/photo-mosaic" "work/ex/beta-1.37-6/sources/1.36.0/gh/verdie-g/photo-mosaic"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/verdie-g/photo-mosaic'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/verdie-g/photo-mosaic" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/verdie-g/photo-mosaic"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/verdie-g/photo-mosaic'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b2ae2469829f52ed686c0737aa0789a4c191b2db
[INFO] sha for GitHub repo verdie-g/photo-mosaic: b2ae2469829f52ed686c0737aa0789a4c191b2db
[INFO] validating manifest of verdie-g/photo-mosaic on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of verdie-g/photo-mosaic on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing verdie-g/photo-mosaic
[INFO] finished frobbing verdie-g/photo-mosaic
[INFO] frobbed toml for verdie-g/photo-mosaic written to work/ex/beta-1.37-6/sources/1.36.0/gh/verdie-g/photo-mosaic/Cargo.toml
[INFO] started frobbing verdie-g/photo-mosaic
[INFO] finished frobbing verdie-g/photo-mosaic
[INFO] frobbed toml for verdie-g/photo-mosaic written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/verdie-g/photo-mosaic/Cargo.toml
[INFO] crate verdie-g/photo-mosaic already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing verdie-g/photo-mosaic against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/verdie-g/photo-mosaic:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] b948ef6259cd8c331719197b75b78be1ba7998baf8e0cb4f01f697a1ae839024
[INFO] running `"docker" "start" "-a" "b948ef6259cd8c331719197b75b78be1ba7998baf8e0cb4f01f697a1ae839024"`
[INFO] [stderr]    Compiling syn v0.15.30
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling num v0.2.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling num-derive v0.2.4
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]    Compiling tiff v0.2.2
[INFO] [stderr]    Compiling image v0.21.0
[INFO] [stderr]    Compiling mosaic v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `w`
[INFO] [stderr]    --> src/main.rs:236:10
[INFO] [stderr]     |
[INFO] [stderr] 236 |     let (w, h) = model.dimensions();
[INFO] [stderr]     |          ^ help: consider prefixing with an underscore: `_w`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `h`
[INFO] [stderr]    --> src/main.rs:236:13
[INFO] [stderr]     |
[INFO] [stderr] 236 |     let (w, h) = model.dimensions();
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_h`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 59.25s
[INFO] running `"docker" "inspect" "b948ef6259cd8c331719197b75b78be1ba7998baf8e0cb4f01f697a1ae839024"`
[INFO] running `"docker" "rm" "-f" "b948ef6259cd8c331719197b75b78be1ba7998baf8e0cb4f01f697a1ae839024"`
[INFO] [stdout] b948ef6259cd8c331719197b75b78be1ba7998baf8e0cb4f01f697a1ae839024
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/verdie-g/photo-mosaic:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 48f52c49980fd26958cadcd4b5ab44f5c4778d4b7694d928587f3cd3067acaf3
[INFO] running `"docker" "start" "-a" "48f52c49980fd26958cadcd4b5ab44f5c4778d4b7694d928587f3cd3067acaf3"`
[INFO] [stderr]    Compiling mosaic v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `w`
[INFO] [stderr]    --> src/main.rs:236:10
[INFO] [stderr]     |
[INFO] [stderr] 236 |     let (w, h) = model.dimensions();
[INFO] [stderr]     |          ^ help: consider prefixing with an underscore: `_w`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `h`
[INFO] [stderr]    --> src/main.rs:236:13
[INFO] [stderr]     |
[INFO] [stderr] 236 |     let (w, h) = model.dimensions();
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_h`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.07s
[INFO] running `"docker" "inspect" "48f52c49980fd26958cadcd4b5ab44f5c4778d4b7694d928587f3cd3067acaf3"`
[INFO] running `"docker" "rm" "-f" "48f52c49980fd26958cadcd4b5ab44f5c4778d4b7694d928587f3cd3067acaf3"`
[INFO] [stdout] 48f52c49980fd26958cadcd4b5ab44f5c4778d4b7694d928587f3cd3067acaf3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/verdie-g/photo-mosaic:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] bfe88b6dc0e8046082aeb4bd891f55a83fd695474e1bc56bf326f6d56b248a8d
[INFO] running `"docker" "start" "-a" "bfe88b6dc0e8046082aeb4bd891f55a83fd695474e1bc56bf326f6d56b248a8d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/mosaic-6e7afeae143f368d
[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" "bfe88b6dc0e8046082aeb4bd891f55a83fd695474e1bc56bf326f6d56b248a8d"`
[INFO] running `"docker" "rm" "-f" "bfe88b6dc0e8046082aeb4bd891f55a83fd695474e1bc56bf326f6d56b248a8d"`
[INFO] [stdout] bfe88b6dc0e8046082aeb4bd891f55a83fd695474e1bc56bf326f6d56b248a8d