[INFO] updating cached repository 1derless/mandelbrot
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/1derless/mandelbrot
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/1derless/mandelbrot" "work/ex/beta-1.37-6/sources/1.36.0/gh/1derless/mandelbrot"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/1derless/mandelbrot'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/1derless/mandelbrot" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/1derless/mandelbrot"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/1derless/mandelbrot'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 13e9e9ba3d8e5d20785156f3b2ae3bc015a341ee
[INFO] sha for GitHub repo 1derless/mandelbrot: 13e9e9ba3d8e5d20785156f3b2ae3bc015a341ee
[INFO] validating manifest of 1derless/mandelbrot 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 1derless/mandelbrot 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 1derless/mandelbrot
[INFO] finished frobbing 1derless/mandelbrot
[INFO] frobbed toml for 1derless/mandelbrot written to work/ex/beta-1.37-6/sources/1.36.0/gh/1derless/mandelbrot/Cargo.toml
[INFO] started frobbing 1derless/mandelbrot
[INFO] finished frobbing 1derless/mandelbrot
[INFO] frobbed toml for 1derless/mandelbrot written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/1derless/mandelbrot/Cargo.toml
[INFO] crate 1derless/mandelbrot 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 1derless/mandelbrot 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-7/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/1derless/mandelbrot:/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] c367c874d0b58f0c12f35dde30585430fb63a51d71faaeca722bbc5d22d42838
[INFO] running `"docker" "start" "-a" "c367c874d0b58f0c12f35dde30585430fb63a51d71faaeca722bbc5d22d42838"`
[INFO] [stderr]    Compiling separator v0.4.0
[INFO] [stderr]    Compiling argparse v0.2.2
[INFO] [stderr]    Compiling arrayvec v0.4.7
[INFO] [stderr]    Compiling time v0.1.41
[INFO] [stderr]    Compiling syn v0.15.21
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling palette v0.4.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling num-derive v0.2.3
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling palette_derive v0.4.1
[INFO] [stderr]    Compiling tiff v0.2.1
[INFO] [stderr]    Compiling image v0.20.1
[INFO] [stderr]    Compiling image_mandelbrot v0.2.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.75s
[INFO] running `"docker" "inspect" "c367c874d0b58f0c12f35dde30585430fb63a51d71faaeca722bbc5d22d42838"`
[INFO] running `"docker" "rm" "-f" "c367c874d0b58f0c12f35dde30585430fb63a51d71faaeca722bbc5d22d42838"`
[INFO] [stdout] c367c874d0b58f0c12f35dde30585430fb63a51d71faaeca722bbc5d22d42838
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/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/1derless/mandelbrot:/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] d9b103637bdb98d430fb777f9868e8efec0f77da49d0b1f1ae9f65f4cc1f10fd
[INFO] running `"docker" "start" "-a" "d9b103637bdb98d430fb777f9868e8efec0f77da49d0b1f1ae9f65f4cc1f10fd"`
[INFO] [stderr]    Compiling image_mandelbrot v0.2.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.56s
[INFO] running `"docker" "inspect" "d9b103637bdb98d430fb777f9868e8efec0f77da49d0b1f1ae9f65f4cc1f10fd"`
[INFO] running `"docker" "rm" "-f" "d9b103637bdb98d430fb777f9868e8efec0f77da49d0b1f1ae9f65f4cc1f10fd"`
[INFO] [stdout] d9b103637bdb98d430fb777f9868e8efec0f77da49d0b1f1ae9f65f4cc1f10fd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/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/1derless/mandelbrot:/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] e8c4598a625ebcf8055e130cbd9eb0b0cdd39c460957bd87b1016d228e7ce02b
[INFO] running `"docker" "start" "-a" "e8c4598a625ebcf8055e130cbd9eb0b0cdd39c460957bd87b1016d228e7ce02b"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/image_mandelbrot-259c7122690717e0
[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] [stderr]      Running /opt/crater/target/debug/deps/image_mandelbrot-30dae849a4ccd2da
[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] [stderr]    Doc-tests image_mandelbrot
[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" "e8c4598a625ebcf8055e130cbd9eb0b0cdd39c460957bd87b1016d228e7ce02b"`
[INFO] running `"docker" "rm" "-f" "e8c4598a625ebcf8055e130cbd9eb0b0cdd39c460957bd87b1016d228e7ce02b"`
[INFO] [stdout] e8c4598a625ebcf8055e130cbd9eb0b0cdd39c460957bd87b1016d228e7ce02b