Dec 19 08:14:06.727 INFO checking stallmanifold/sudoku against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 08:14:06.727 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/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=forbid" "-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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 08:14:06.990 INFO [stdout] 77ad6e7005d56ab649bba23f1a4db9301f65f14a9495edbeb776998c05d84ce8
Dec 19 08:14:06.992 INFO running `"docker" "start" "-a" "77ad6e7005d56ab649bba23f1a4db9301f65f14a9495edbeb776998c05d84ce8"`
Dec 19 08:14:07.880 INFO [stderr]    Compiling libc v0.2.26
Dec 19 08:14:07.888 INFO [stderr]     Checking scopeguard v0.3.2
Dec 19 08:14:07.888 INFO [stderr]     Checking either v1.1.0
Dec 19 08:14:07.888 INFO [stderr]    Compiling rayon-core v1.2.1
Dec 19 08:14:07.888 INFO [stderr]     Checking adler32 v1.0.0
Dec 19 08:14:07.888 INFO [stderr]     Checking odds v0.2.25
Dec 19 08:14:07.888 INFO [stderr]     Checking shader_version v0.2.2
Dec 19 08:14:07.888 INFO [stderr]     Checking inflate v0.2.0
Dec 19 08:14:08.754 INFO [stderr]     Checking linked-hash-map v0.0.10
Dec 19 08:14:08.864 INFO [stderr]     Checking piston-texture v0.5.0
Dec 19 08:14:08.926 INFO [stderr]     Checking read_color v0.1.0
Dec 19 08:14:09.293 INFO [stderr]    Compiling serde_json v0.9.10
Dec 19 08:14:09.441 INFO [stderr]    Compiling xml-rs v0.3.6
Dec 19 08:14:09.886 INFO [stderr]    Compiling x11-dl v2.14.0
Dec 19 08:14:10.182 INFO [stderr]     Checking num_cpus v1.6.2
Dec 19 08:14:11.257 INFO [stderr]     Checking rand v0.3.15
Dec 19 08:14:11.324 INFO [stderr]     Checking shared_library v0.1.6
Dec 19 08:14:12.288 INFO [stderr]    Compiling xml-rs v0.6.0
Dec 19 08:14:12.328 INFO [stderr]     Checking vecmath v0.3.0
Dec 19 08:14:12.576 INFO [stderr]     Checking deflate v0.7.14
Dec 19 08:14:12.752 INFO [stderr]     Checking coco v0.1.1
Dec 19 08:14:14.918 INFO [stderr]     Checking nodrop v0.1.9
Dec 19 08:14:15.440 INFO [stderr]     Checking num-rational v0.1.39
Dec 19 08:14:23.569 INFO [stderr]     Checking pistoncore-input v0.18.0
Dec 19 08:14:23.569 INFO [stderr]     Checking osmesa-sys v0.1.2
Dec 19 08:14:23.605 INFO [stderr]     Checking piston2d-graphics v0.21.1
Dec 19 08:14:23.731 INFO [stderr]     Checking arrayvec v0.3.23
Dec 19 08:14:23.740 INFO [stderr]     Checking tempfile v2.1.6
Dec 19 08:14:23.802 INFO [stderr]    Compiling wayland-scanner v0.9.9
Dec 19 08:14:23.936 INFO [stderr]     Checking png v0.8.0
Dec 19 08:14:24.432 INFO [stderr]    Compiling gl_generator v0.5.5
Dec 19 08:14:24.504 INFO [stderr]     Checking fs2 v0.2.5
Dec 19 08:14:25.112 INFO [stderr]    Compiling phf_generator v0.7.21
Dec 19 08:14:26.192 INFO [stderr]     Checking memmap v0.4.0
Dec 19 08:14:26.336 INFO [stderr]    Compiling phf_codegen v0.7.21
Dec 19 08:14:26.393 INFO [stderr]     Checking rayon v0.8.2
Dec 19 08:14:26.671 INFO [stderr]     Checking rusttype v0.2.1
Dec 19 08:14:26.741 INFO [stderr]    Compiling target_build_utils v0.3.1
Dec 19 08:14:27.655 INFO [stderr]     Checking pistoncore-window v0.27.0
Dec 19 08:14:27.713 INFO [stderr]    Compiling wayland-client v0.9.9
Dec 19 08:14:32.088 INFO [stderr]     Checking pistoncore-event_loop v0.32.0
Dec 19 08:14:32.408 INFO [stderr]    Compiling glutin v0.9.1
Dec 19 08:14:32.408 INFO [stderr]    Compiling gl v0.6.3
Dec 19 08:14:32.544 INFO [stderr]     Checking piston v0.32.0
Dec 19 08:14:32.936 INFO [stderr]     Checking jpeg-decoder v0.1.13
Dec 19 08:14:34.821 INFO [stderr]     Checking image v0.14.0
Dec 19 08:14:42.160 INFO [stderr]    Compiling libloading v0.3.4
Dec 19 08:14:44.706 INFO [stderr]     Checking dlib v0.3.1
Dec 19 08:14:44.913 INFO [stderr]     Checking wayland-sys v0.9.9
Dec 19 08:14:45.441 INFO [stderr]     Checking piston2d-opengl_graphics v0.45.0
Dec 19 08:14:47.402 INFO [stderr]     Checking wayland-window v0.6.1
Dec 19 08:14:47.402 INFO [stderr]     Checking wayland-kbd v0.9.1
Dec 19 08:14:48.418 INFO [stderr]     Checking winit v0.7.5
Dec 19 08:14:51.183 INFO [stderr]     Checking pistoncore-glutin_window v0.38.0
Dec 19 08:14:51.581 INFO [stderr]     Checking sudoku v0.1.0 (/opt/crater/workdir)
Dec 19 08:14:52.050 INFO [stderr] warning: doc comment not used by rustdoc
Dec 19 08:14:52.050 INFO [stderr]    --> src/gameboard_view.rs:105:9
Dec 19 08:14:52.051 INFO [stderr]     |
Dec 19 08:14:52.051 INFO [stderr] 105 |         /// Draw characters.
Dec 19 08:14:52.051 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^
Dec 19 08:14:52.056 INFO [stderr]     |
Dec 19 08:14:52.056 INFO [stderr]     = note: #[warn(unused_doc_comments)] on by default
Dec 19 08:14:52.056 INFO [stderr] 
Dec 19 08:14:52.068 INFO [stderr] warning: doc comment not used by rustdoc
Dec 19 08:14:52.069 INFO [stderr]    --> src/gameboard_view.rs:105:9
Dec 19 08:14:52.069 INFO [stderr]     |
Dec 19 08:14:52.069 INFO [stderr] 105 |         /// Draw characters.
Dec 19 08:14:52.070 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^
Dec 19 08:14:52.070 INFO [stderr]     |
Dec 19 08:14:52.070 INFO [stderr]     = note: #[warn(unused_doc_comments)] on by default
Dec 19 08:14:52.070 INFO [stderr] 
Dec 19 08:14:52.428 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 44.78s
Dec 19 08:14:53.628 INFO running `"docker" "inspect" "77ad6e7005d56ab649bba23f1a4db9301f65f14a9495edbeb776998c05d84ce8"`
Dec 19 08:14:53.876 INFO running `"docker" "rm" "-f" "77ad6e7005d56ab649bba23f1a4db9301f65f14a9495edbeb776998c05d84ce8"`
Dec 19 08:14:54.216 INFO [stdout] 77ad6e7005d56ab649bba23f1a4db9301f65f14a9495edbeb776998c05d84ce8