[INFO] updating cached repository https://github.com/stallmanifold/sudoku
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ce3e86a5223d7fe64f287656647b84ca75bab3a4
[INFO] checking stallmanifold/sudoku against try#00e4530a79c42b21a6ca2ac1edb597c90d21f89f for pr-64672
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstallmanifold%2Fsudoku" "work/builds/worker-0/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stallmanifold/sudoku on toolchain 00e4530a79c42b21a6ca2ac1edb597c90d21f89f
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+00e4530a79c42b21a6ca2ac1edb597c90d21f89f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/stallmanifold/sudoku
[INFO] finished tweaking git repo https://github.com/stallmanifold/sudoku
[INFO] tweaked toml for git repo https://github.com/stallmanifold/sudoku written to work/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/stallmanifold/sudoku already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+00e4530a79c42b21a6ca2ac1edb597c90d21f89f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+00e4530a79c42b21a6ca2ac1edb597c90d21f89f" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 7718e7b41b1d805a1fd42bda8d9db97448e65ec7cdf092b4b87156aa10c5a0e5
[INFO] running `"docker" "start" "-a" "7718e7b41b1d805a1fd42bda8d9db97448e65ec7cdf092b4b87156aa10c5a0e5"`
[INFO] [stderr]    Compiling gl v0.6.3
[INFO] [stderr]     Checking fs2 v0.2.5
[INFO] [stderr]     Checking memmap v0.4.0
[INFO] [stderr]     Checking wayland-kbd v0.9.1
[INFO] [stderr]     Checking winit v0.7.5
[INFO] [stderr]     Checking glutin v0.9.1
[INFO] [stderr]     Checking piston2d-opengl_graphics v0.45.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.38.0
[INFO] [stderr]     Checking sudoku v0.1.0 (/opt/rustwide/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] 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 21.75s
[INFO] running `"docker" "inspect" "7718e7b41b1d805a1fd42bda8d9db97448e65ec7cdf092b4b87156aa10c5a0e5"`
[INFO] running `"docker" "rm" "-f" "7718e7b41b1d805a1fd42bda8d9db97448e65ec7cdf092b4b87156aa10c5a0e5"`
[INFO] [stdout] 7718e7b41b1d805a1fd42bda8d9db97448e65ec7cdf092b4b87156aa10c5a0e5