Dec 12 03:09:49.813 INFO checking Diapolo10/sudoku against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 03:09:49.814 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-0/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa9aa79c3c583aab59ac9134542d60a780c35e2e-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 12 03:09:50.092 INFO [stdout] 153bcbcefab3708a11a6a3d842556b5266487acc5e4760a3ef0d57fe5d4aca8e
Dec 12 03:09:50.100 INFO running `"docker" "start" "-a" "153bcbcefab3708a11a6a3d842556b5266487acc5e4760a3ef0d57fe5d4aca8e"`
Dec 12 03:09:50.690 INFO [stderr] usermod: no changes
Dec 12 03:09:50.975 INFO [stderr]     Checking shared_library v0.1.7
Dec 12 03:09:50.975 INFO [stderr]    Compiling phf_generator v0.7.21
Dec 12 03:09:50.975 INFO [stderr]     Checking tempfile v2.1.6
Dec 12 03:09:50.980 INFO [stderr]     Checking x11-dl v2.15.0
Dec 12 03:09:50.980 INFO [stderr]     Checking fs2 v0.2.5
Dec 12 03:09:50.980 INFO [stderr]     Checking piston2d-opengl_graphics v0.46.0
Dec 12 03:09:51.894 INFO [stderr]     Checking memmap v0.4.0
Dec 12 03:09:53.328 INFO [stderr]     Checking osmesa-sys v0.1.2
Dec 12 03:09:53.625 INFO [stderr]    Compiling phf_codegen v0.7.21
Dec 12 03:09:55.580 INFO [stderr]    Compiling target_build_utils v0.3.1
Dec 12 03:10:06.430 INFO [stderr]    Compiling libloading v0.3.4
Dec 12 03:10:09.318 INFO [stderr]     Checking dlib v0.3.1
Dec 12 03:10:09.869 INFO [stderr]     Checking wayland-sys v0.9.9
Dec 12 03:10:10.548 INFO [stderr]     Checking wayland-client v0.9.9
Dec 12 03:10:12.351 INFO [stderr]     Checking wayland-window v0.6.1
Dec 12 03:10:12.353 INFO [stderr]     Checking wayland-kbd v0.9.1
Dec 12 03:10:14.076 INFO [stderr]     Checking winit v0.7.5
Dec 12 03:10:16.139 INFO [stderr]     Checking glutin v0.9.2
Dec 12 03:10:18.115 INFO [stderr]     Checking pistoncore-glutin_window v0.38.0
Dec 12 03:10:19.850 INFO [stderr]     Checking sudoku v0.1.0 (/source)
Dec 12 03:10:24.212 INFO [stderr] warning: doc comment not used by rustdoc
Dec 12 03:10:24.212 INFO [stderr]    --> src/gameboard_view.rs:105:9
Dec 12 03:10:24.212 INFO [stderr]     |
Dec 12 03:10:24.212 INFO [stderr] 105 |         /// Draw characters.
Dec 12 03:10:24.212 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^
Dec 12 03:10:24.212 INFO [stderr]     |
Dec 12 03:10:24.212 INFO [stderr]     = note: #[warn(unused_doc_comments)] on by default
Dec 12 03:10:24.212 INFO [stderr] 
Dec 12 03:10:24.551 INFO [stderr] warning: doc comment not used by rustdoc
Dec 12 03:10:24.551 INFO [stderr]    --> src/gameboard_view.rs:105:9
Dec 12 03:10:24.551 INFO [stderr]     |
Dec 12 03:10:24.551 INFO [stderr] 105 |         /// Draw characters.
Dec 12 03:10:24.551 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^
Dec 12 03:10:24.551 INFO [stderr]     |
Dec 12 03:10:24.551 INFO [stderr]     = note: #[warn(unused_doc_comments)] on by default
Dec 12 03:10:24.551 INFO [stderr] 
Dec 12 03:10:24.722 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.01s
Dec 12 03:10:24.749 INFO [stderr] su: No module specific data is present
Dec 12 03:10:25.390 INFO running `"docker" "inspect" "153bcbcefab3708a11a6a3d842556b5266487acc5e4760a3ef0d57fe5d4aca8e"`
Dec 12 03:10:25.670 INFO running `"docker" "rm" "-f" "153bcbcefab3708a11a6a3d842556b5266487acc5e4760a3ef0d57fe5d4aca8e"`
Dec 12 03:10:25.940 INFO [stdout] 153bcbcefab3708a11a6a3d842556b5266487acc5e4760a3ef0d57fe5d4aca8e