[INFO] updating cached repository stallmanifold/sudoku
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/stallmanifold/sudoku
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/stallmanifold/sudoku" "work/ex/beta-1.38-1/sources/1.37.0/gh/stallmanifold/sudoku"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/stallmanifold/sudoku'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/stallmanifold/sudoku" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/stallmanifold/sudoku"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/stallmanifold/sudoku'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d02ef752646781f4d2a101022c2c066783c930ce
[INFO] sha for GitHub repo stallmanifold/sudoku: d02ef752646781f4d2a101022c2c066783c930ce
[INFO] validating manifest of stallmanifold/sudoku 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 stallmanifold/sudoku 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 stallmanifold/sudoku
[INFO] finished frobbing stallmanifold/sudoku
[INFO] frobbed toml for stallmanifold/sudoku written to work/ex/beta-1.38-1/sources/1.37.0/gh/stallmanifold/sudoku/Cargo.toml
[INFO] started frobbing stallmanifold/sudoku
[INFO] finished frobbing stallmanifold/sudoku
[INFO] frobbed toml for stallmanifold/sudoku written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/stallmanifold/sudoku/Cargo.toml
[INFO] crate stallmanifold/sudoku 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 stallmanifold/sudoku against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/stallmanifold/sudoku:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 6c3c62796c5495566638c978cf5ae4767f69167143c89464f5d4c4abdeb8e061
[INFO] running `"docker" "start" "-a" "6c3c62796c5495566638c978cf5ae4767f69167143c89464f5d4c4abdeb8e061"`
[INFO] [stderr]    Compiling deflate v0.7.14
[INFO] [stderr]    Compiling num-rational v0.1.39
[INFO] [stderr]    Compiling wayland-scanner v0.9.9
[INFO] [stderr]    Compiling gl v0.6.3
[INFO] [stderr]    Compiling glutin v0.9.1
[INFO] [stderr]    Compiling rayon v0.8.2
[INFO] [stderr]    Compiling wayland-sys v0.9.9
[INFO] [stderr]    Compiling png v0.8.0
[INFO] [stderr]    Compiling wayland-client v0.9.9
[INFO] [stderr]    Compiling jpeg-decoder v0.1.13
[INFO] [stderr]    Compiling image v0.14.0
[INFO] [stderr]    Compiling wayland-kbd v0.9.1
[INFO] [stderr]    Compiling wayland-window v0.6.1
[INFO] [stderr]    Compiling winit v0.7.5
[INFO] [stderr]    Compiling piston2d-opengl_graphics v0.45.0
[INFO] [stderr]    Compiling pistoncore-glutin_window v0.38.0
[INFO] [stderr]    Compiling sudoku v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/gameboard_view.rs:105:9
[INFO] [stderr]     |
[INFO] [stderr] 105 |         /// Draw characters.
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 106 |         let text_image = Image::new_color(settings.text_color);
[INFO] [stderr]     |         ------------------------------------------------------- rustdoc does not generate documentation for statements
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.02s
[INFO] running `"docker" "inspect" "6c3c62796c5495566638c978cf5ae4767f69167143c89464f5d4c4abdeb8e061"`
[INFO] running `"docker" "rm" "-f" "6c3c62796c5495566638c978cf5ae4767f69167143c89464f5d4c4abdeb8e061"`
[INFO] [stdout] 6c3c62796c5495566638c978cf5ae4767f69167143c89464f5d4c4abdeb8e061
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/stallmanifold/sudoku:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] b8d1fceaf9dae3d9d162135356902eaea317d2dd26cd746b1e398ce607700305
[INFO] running `"docker" "start" "-a" "b8d1fceaf9dae3d9d162135356902eaea317d2dd26cd746b1e398ce607700305"`
[INFO] [stderr]    Compiling sudoku v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/gameboard_view.rs:105:9
[INFO] [stderr]     |
[INFO] [stderr] 105 |         /// Draw characters.
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 106 |         let text_image = Image::new_color(settings.text_color);
[INFO] [stderr]     |         ------------------------------------------------------- rustdoc does not generate documentation for statements
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.36s
[INFO] running `"docker" "inspect" "b8d1fceaf9dae3d9d162135356902eaea317d2dd26cd746b1e398ce607700305"`
[INFO] running `"docker" "rm" "-f" "b8d1fceaf9dae3d9d162135356902eaea317d2dd26cd746b1e398ce607700305"`
[INFO] [stdout] b8d1fceaf9dae3d9d162135356902eaea317d2dd26cd746b1e398ce607700305
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/stallmanifold/sudoku:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] ef87aca58e20202352f560911617cfbf2c489aefd17fdcb220c951f5f2d9b76a
[INFO] running `"docker" "start" "-a" "ef87aca58e20202352f560911617cfbf2c489aefd17fdcb220c951f5f2d9b76a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sudoku-45de2bdb58910c18
[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" "ef87aca58e20202352f560911617cfbf2c489aefd17fdcb220c951f5f2d9b76a"`
[INFO] running `"docker" "rm" "-f" "ef87aca58e20202352f560911617cfbf2c489aefd17fdcb220c951f5f2d9b76a"`
[INFO] [stdout] ef87aca58e20202352f560911617cfbf2c489aefd17fdcb220c951f5f2d9b76a