[INFO] updating cached repository ferrouswheel/superpixel-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ferrouswheel/superpixel-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ferrouswheel/superpixel-rs" "work/ex/beta-1.37-6/sources/1.36.0/gh/ferrouswheel/superpixel-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/ferrouswheel/superpixel-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ferrouswheel/superpixel-rs" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ferrouswheel/superpixel-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ferrouswheel/superpixel-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 84e20c5c95e88022f935ef63dd0377152aa6276c
[INFO] sha for GitHub repo ferrouswheel/superpixel-rs: 84e20c5c95e88022f935ef63dd0377152aa6276c
[INFO] validating manifest of ferrouswheel/superpixel-rs 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 ferrouswheel/superpixel-rs 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 ferrouswheel/superpixel-rs
[INFO] finished frobbing ferrouswheel/superpixel-rs
[INFO] frobbed toml for ferrouswheel/superpixel-rs written to work/ex/beta-1.37-6/sources/1.36.0/gh/ferrouswheel/superpixel-rs/Cargo.toml
[INFO] started frobbing ferrouswheel/superpixel-rs
[INFO] finished frobbing ferrouswheel/superpixel-rs
[INFO] frobbed toml for ferrouswheel/superpixel-rs written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ferrouswheel/superpixel-rs/Cargo.toml
[INFO] crate ferrouswheel/superpixel-rs 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 ferrouswheel/superpixel-rs against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ferrouswheel/superpixel-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=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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 2c0a87792c81ead760c0ac29a46fc8a5980aaba2fc055d73bc9c1e1eb83271f1
[INFO] running `"docker" "start" "-a" "2c0a87792c81ead760c0ac29a46fc8a5980aaba2fc055d73bc9c1e1eb83271f1"`
[INFO] [stderr]    Compiling libc v0.2.28
[INFO] [stderr]    Compiling deflate v0.7.14
[INFO] [stderr]    Compiling num-rational v0.1.39
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling rand v0.3.16
[INFO] [stderr]    Compiling num_cpus v1.6.2
[INFO] [stderr]    Compiling png v0.12.0
[INFO] [stderr]    Compiling rayon-core v1.2.1
[INFO] [stderr]    Compiling rayon v0.8.2
[INFO] [stderr]    Compiling num-derive v0.2.2
[INFO] [stderr]    Compiling jpeg-decoder v0.1.13
[INFO] [stderr]    Compiling image v0.19.0
[INFO] [stderr]    Compiling superpixel v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `idx`
[INFO] [stderr]    --> src/lib.rs:451:17
[INFO] [stderr]     |
[INFO] [stderr] 451 |             let idx = y * width + x;
[INFO] [stderr]     |                 ^^^ help: consider prefixing with an underscore: `_idx`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `klabels`
[INFO] [stderr]    --> src/lib.rs:438:5
[INFO] [stderr]     |
[INFO] [stderr] 438 |     klabels: &Vec<i32>,
[INFO] [stderr]     |     ^^^^^^^ help: consider prefixing with an underscore: `_klabels`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `outline_color`
[INFO] [stderr]    --> src/lib.rs:440:5
[INFO] [stderr]     |
[INFO] [stderr] 440 |     outline_color: &image::Rgb<u8>
[INFO] [stderr]     |     ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_outline_color`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.76s
[INFO] running `"docker" "inspect" "2c0a87792c81ead760c0ac29a46fc8a5980aaba2fc055d73bc9c1e1eb83271f1"`
[INFO] running `"docker" "rm" "-f" "2c0a87792c81ead760c0ac29a46fc8a5980aaba2fc055d73bc9c1e1eb83271f1"`
[INFO] [stdout] 2c0a87792c81ead760c0ac29a46fc8a5980aaba2fc055d73bc9c1e1eb83271f1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ferrouswheel/superpixel-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=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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 1faa1dff977072e53150fc03eee0630bf95b1a24d716019d5114018cc36f494f
[INFO] running `"docker" "start" "-a" "1faa1dff977072e53150fc03eee0630bf95b1a24d716019d5114018cc36f494f"`
[INFO] [stderr]    Compiling superpixel v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `idx`
[INFO] [stderr]    --> src/lib.rs:451:17
[INFO] [stderr]     |
[INFO] [stderr] 451 |             let idx = y * width + x;
[INFO] [stderr]     |                 ^^^ help: consider prefixing with an underscore: `_idx`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `klabels`
[INFO] [stderr]    --> src/lib.rs:438:5
[INFO] [stderr]     |
[INFO] [stderr] 438 |     klabels: &Vec<i32>,
[INFO] [stderr]     |     ^^^^^^^ help: consider prefixing with an underscore: `_klabels`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `outline_color`
[INFO] [stderr]    --> src/lib.rs:440:5
[INFO] [stderr]     |
[INFO] [stderr] 440 |     outline_color: &image::Rgb<u8>
[INFO] [stderr]     |     ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_outline_color`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.40s
[INFO] running `"docker" "inspect" "1faa1dff977072e53150fc03eee0630bf95b1a24d716019d5114018cc36f494f"`
[INFO] running `"docker" "rm" "-f" "1faa1dff977072e53150fc03eee0630bf95b1a24d716019d5114018cc36f494f"`
[INFO] [stdout] 1faa1dff977072e53150fc03eee0630bf95b1a24d716019d5114018cc36f494f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ferrouswheel/superpixel-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=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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] d4b12c877dafcedede835e5fec1e4c02aa5bb4c72a898775acb8275b97231bd2
[INFO] running `"docker" "start" "-a" "d4b12c877dafcedede835e5fec1e4c02aa5bb4c72a898775acb8275b97231bd2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/superpixel-288d812ee1598cf3
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test::test_rgb_to_xyz ... ok
[INFO] [stdout] test test::test_rgb_to_lab ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests superpixel
[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" "d4b12c877dafcedede835e5fec1e4c02aa5bb4c72a898775acb8275b97231bd2"`
[INFO] running `"docker" "rm" "-f" "d4b12c877dafcedede835e5fec1e4c02aa5bb4c72a898775acb8275b97231bd2"`
[INFO] [stdout] d4b12c877dafcedede835e5fec1e4c02aa5bb4c72a898775acb8275b97231bd2