Dec 19 13:28:43.431 INFO checking lreynolds18/maze-solver against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 13:28:43.431 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/lreynolds18/maze-solver:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 13:28:43.679 INFO [stdout] 49c5450a2eaf446df48690293619a096a95fe35eba3adf3e9b7a6e24b3a7d75a
Dec 19 13:28:43.681 INFO running `"docker" "start" "-a" "49c5450a2eaf446df48690293619a096a95fe35eba3adf3e9b7a6e24b3a7d75a"`
Dec 19 13:28:44.591 INFO [stderr]    Compiling bitflags v1.0.0
Dec 19 13:28:44.592 INFO [stderr]     Checking serde v1.0.19
Dec 19 13:28:44.593 INFO [stderr]    Compiling rand v0.3.18
Dec 19 13:28:44.594 INFO [stderr]     Checking tempfile v2.2.0
Dec 19 13:28:44.594 INFO [stderr]     Checking rayon-core v1.2.1
Dec 19 13:28:44.596 INFO [stderr]     Checking rusttype v0.2.3
Dec 19 13:28:44.599 INFO [stderr]     Checking png v0.10.0
Dec 19 13:28:44.601 INFO [stderr]    Compiling serde_derive v1.0.19
Dec 19 13:28:45.545 INFO [stderr]    Compiling xml-rs v0.7.0
Dec 19 13:28:46.431 INFO [stderr]     Checking rayon v0.8.2
Dec 19 13:28:50.488 INFO [stderr]    Compiling phf_generator v0.7.21
Dec 19 13:28:50.865 INFO [stderr]     Checking piston2d-graphics v0.22.0
Dec 19 13:28:51.484 INFO [stderr]    Compiling phf_codegen v0.7.21
Dec 19 13:28:53.507 INFO [stderr]    Compiling target_build_utils v0.3.1
Dec 19 13:28:54.136 INFO [stderr]    Compiling gl_generator v0.6.1
Dec 19 13:28:56.188 INFO [stderr]     Checking jpeg-decoder v0.1.13
Dec 19 13:28:57.548 INFO [stderr]     Checking image v0.16.0
Dec 19 13:28:59.252 INFO [stderr]    Compiling gl v0.6.5
Dec 19 13:29:01.744 INFO [stderr]     Checking pistoncore-input v0.19.0
Dec 19 13:29:05.315 INFO [stderr]     Checking pistoncore-window v0.29.0
Dec 19 13:29:06.839 INFO [stderr]     Checking pistoncore-event_loop v0.34.0
Dec 19 13:29:07.368 INFO [stderr]     Checking piston v0.34.0
Dec 19 13:29:08.857 INFO [stderr]    Compiling libloading v0.3.4
Dec 19 13:29:09.976 INFO [stderr]     Checking piston2d-opengl_graphics v0.47.0
Dec 19 13:29:10.256 INFO [stderr]     Checking dlib v0.3.1
Dec 19 13:29:10.456 INFO [stderr]     Checking wayland-sys v0.9.10
Dec 19 13:29:10.760 INFO [stderr]     Checking wayland-client v0.9.10
Dec 19 13:29:11.956 INFO [stderr]     Checking wayland-protocols v0.9.10
Dec 19 13:29:11.956 INFO [stderr]     Checking wayland-kbd v0.9.1
Dec 19 13:29:13.576 INFO [stderr]     Checking wayland-window v0.7.0
Dec 19 13:29:13.872 INFO [stderr]     Checking winit v0.7.6
Dec 19 13:29:15.437 INFO [stderr]     Checking glutin v0.9.2
Dec 19 13:29:16.684 INFO [stderr]     Checking pistoncore-glutin_window v0.40.1
Dec 19 13:29:17.369 INFO [stderr]     Checking maze_solver v0.1.0 (/opt/crater/workdir)
Dec 19 13:29:18.236 INFO [stderr] warning: struct is never constructed: `MazeSolver`
Dec 19 13:29:18.236 INFO [stderr]   --> src/main.rs:32:1
Dec 19 13:29:18.236 INFO [stderr]    |
Dec 19 13:29:18.236 INFO [stderr] 32 | struct MazeSolver {
Dec 19 13:29:18.236 INFO [stderr]    | ^^^^^^^^^^^^^^^^^
Dec 19 13:29:18.236 INFO [stderr]    |
Dec 19 13:29:18.236 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 13:29:18.236 INFO [stderr] 
Dec 19 13:29:18.236 INFO [stderr] warning: method is never used: `dfs`
Dec 19 13:29:18.236 INFO [stderr]   --> src/main.rs:37:5
Dec 19 13:29:18.236 INFO [stderr]    |
Dec 19 13:29:18.236 INFO [stderr] 37 |     fn dfs() {}
Dec 19 13:29:18.236 INFO [stderr]    |     ^^^^^^^^
Dec 19 13:29:18.236 INFO [stderr] 
Dec 19 13:29:18.236 INFO [stderr] warning: method is never used: `bfs`
Dec 19 13:29:18.236 INFO [stderr]   --> src/main.rs:40:5
Dec 19 13:29:18.236 INFO [stderr]    |
Dec 19 13:29:18.236 INFO [stderr] 40 |     fn bfs() {}
Dec 19 13:29:18.236 INFO [stderr]    |     ^^^^^^^^
Dec 19 13:29:18.236 INFO [stderr] 
Dec 19 13:29:18.236 INFO [stderr] warning: method is never used: `a_star`
Dec 19 13:29:18.236 INFO [stderr]   --> src/main.rs:43:5
Dec 19 13:29:18.236 INFO [stderr]    |
Dec 19 13:29:18.236 INFO [stderr] 43 |     fn a_star() {}
Dec 19 13:29:18.236 INFO [stderr]    |     ^^^^^^^^^^^
Dec 19 13:29:18.236 INFO [stderr] 
Dec 19 13:29:18.408 INFO [stderr] warning: struct is never constructed: `MazeSolver`
Dec 19 13:29:18.408 INFO [stderr]   --> src/main.rs:32:1
Dec 19 13:29:18.408 INFO [stderr]    |
Dec 19 13:29:18.408 INFO [stderr] 32 | struct MazeSolver {
Dec 19 13:29:18.408 INFO [stderr]    | ^^^^^^^^^^^^^^^^^
Dec 19 13:29:18.408 INFO [stderr]    |
Dec 19 13:29:18.408 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 13:29:18.408 INFO [stderr] 
Dec 19 13:29:18.408 INFO [stderr] warning: method is never used: `dfs`
Dec 19 13:29:18.409 INFO [stderr]   --> src/main.rs:37:5
Dec 19 13:29:18.409 INFO [stderr]    |
Dec 19 13:29:18.409 INFO [stderr] 37 |     fn dfs() {}
Dec 19 13:29:18.409 INFO [stderr]    |     ^^^^^^^^
Dec 19 13:29:18.409 INFO [stderr] 
Dec 19 13:29:18.409 INFO [stderr] warning: method is never used: `bfs`
Dec 19 13:29:18.409 INFO [stderr]   --> src/main.rs:40:5
Dec 19 13:29:18.409 INFO [stderr]    |
Dec 19 13:29:18.409 INFO [stderr] 40 |     fn bfs() {}
Dec 19 13:29:18.409 INFO [stderr]    |     ^^^^^^^^
Dec 19 13:29:18.409 INFO [stderr] 
Dec 19 13:29:18.409 INFO [stderr] warning: method is never used: `a_star`
Dec 19 13:29:18.409 INFO [stderr]   --> src/main.rs:43:5
Dec 19 13:29:18.409 INFO [stderr]    |
Dec 19 13:29:18.409 INFO [stderr] 43 |     fn a_star() {}
Dec 19 13:29:18.409 INFO [stderr]    |     ^^^^^^^^^^^
Dec 19 13:29:18.409 INFO [stderr] 
Dec 19 13:29:18.409 INFO [stderr] error: missing documentation for crate
Dec 19 13:29:18.409 INFO [stderr]    --> src/main.rs:1:1
Dec 19 13:29:18.409 INFO [stderr]     |
Dec 19 13:29:18.409 INFO [stderr] 1   | / #![deny(missing_docs)]
Dec 19 13:29:18.409 INFO [stderr] 2   | |
Dec 19 13:29:18.409 INFO [stderr] 3   | | extern crate piston;
Dec 19 13:29:18.409 INFO [stderr] 4   | | extern crate graphics;
Dec 19 13:29:18.409 INFO [stderr] ...   |
Dec 19 13:29:18.409 INFO [stderr] 155 | |     screen.run();
Dec 19 13:29:18.409 INFO [stderr] 156 | | }
Dec 19 13:29:18.409 INFO [stderr]     | |_^
Dec 19 13:29:18.409 INFO [stderr]     |
Dec 19 13:29:18.409 INFO [stderr] note: lint level defined here
Dec 19 13:29:18.409 INFO [stderr]    --> src/main.rs:1:9
Dec 19 13:29:18.409 INFO [stderr]     |
Dec 19 13:29:18.409 INFO [stderr] 1   | #![deny(missing_docs)]
Dec 19 13:29:18.409 INFO [stderr]     |         ^^^^^^^^^^^^
Dec 19 13:29:18.409 INFO [stderr] 
Dec 19 13:29:18.409 INFO [stderr] error: aborting due to previous error
Dec 19 13:29:18.409 INFO [stderr] 
Dec 19 13:29:18.426 INFO [stderr] error: Could not compile `maze_solver`.
Dec 19 13:29:18.426 INFO [stderr] 
Dec 19 13:29:18.426 INFO [stderr] To learn more, run the command again with --verbose.
Dec 19 13:29:19.033 INFO running `"docker" "inspect" "49c5450a2eaf446df48690293619a096a95fe35eba3adf3e9b7a6e24b3a7d75a"`
Dec 19 13:29:19.321 INFO running `"docker" "rm" "-f" "49c5450a2eaf446df48690293619a096a95fe35eba3adf3e9b7a6e24b3a7d75a"`
Dec 19 13:29:19.584 INFO [stdout] 49c5450a2eaf446df48690293619a096a95fe35eba3adf3e9b7a6e24b3a7d75a