[INFO] cloning repository https://github.com/lil-shimon/rust-maze-game
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lil-shimon/rust-maze-game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flil-shimon%2Frust-maze-game", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flil-shimon%2Frust-maze-game'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 81372446d8e9ee5226838b1d3cfdfe430abb4d5c
[INFO] testing lil-shimon/rust-maze-game against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flil-shimon%2Frust-maze-game" "/workspace/builds/worker-63/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-63/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lil-shimon/rust-maze-game on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lil-shimon/rust-maze-game
[INFO] finished tweaking git repo https://github.com/lil-shimon/rust-maze-game
[INFO] tweaked toml for git repo https://github.com/lil-shimon/rust-maze-game written to /workspace/builds/worker-63/source/Cargo.toml
[INFO] crate git repo https://github.com/lil-shimon/rust-maze-game already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 29d6ec8c6994f034a99cfd3af56b9eb5097fee84202a0b207990e301152bdb5f
[INFO] running `Command { std: "docker" "start" "-a" "29d6ec8c6994f034a99cfd3af56b9eb5097fee84202a0b207990e301152bdb5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29d6ec8c6994f034a99cfd3af56b9eb5097fee84202a0b207990e301152bdb5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29d6ec8c6994f034a99cfd3af56b9eb5097fee84202a0b207990e301152bdb5f", kill_on_drop: false }`
[INFO] [stdout] 29d6ec8c6994f034a99cfd3af56b9eb5097fee84202a0b207990e301152bdb5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 24b37fcd3dcc7808a0814a29b61a72f5cd60f1bdf0451df82549d4969fe80b4e
[INFO] running `Command { std: "docker" "start" "-a" "24b37fcd3dcc7808a0814a29b61a72f5cd60f1bdf0451df82549d4969fe80b4e", kill_on_drop: false }`
[INFO] [stderr]    Compiling maze-game-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `MazeCell`, `MazeKind`, `Maze`
[INFO] [stdout]  --> src/player.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::maze::{Maze, MazeCell, MazeKind};
[INFO] [stdout]   |                   ^^^^  ^^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::maze::MazeKind::Start`
[INFO] [stdout]  --> src/player.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::maze::MazeKind::Start;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Path`
[INFO] [stdout]  --> src/maze.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Path,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Wall`
[INFO] [stdout]  --> src/maze.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     Wall,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Start`
[INFO] [stdout]   --> src/maze.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Start,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `End`
[INFO] [stdout]   --> src/maze.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     End,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Visited`
[INFO] [stdout]   --> src/maze.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     Visited,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Hide`
[INFO] [stdout]   --> src/maze.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     Hide,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `MazeDirection`
[INFO] [stdout]   --> src/maze.rs:26:6
[INFO] [stdout]    |
[INFO] [stdout] 26 | enum MazeDirection {
[INFO] [stdout]    |      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `MazeKindAnnotation`
[INFO] [stdout]   --> src/maze.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub type MazeKindAnnotation = BTreeMap<String, MazeKind>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `create`
[INFO] [stdout]   --> src/maze.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn create(kind: MazeKind, flag: MazeFlag) -> Self {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `compare`
[INFO] [stdout]   --> src/maze.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn compare(a: &MazeKind, b: &MazeKind) -> bool {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `create`
[INFO] [stdout]   --> src/maze.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn create(cells: Vec<MazeCell>) -> Self {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `init`
[INFO] [stdout]   --> src/maze.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn init(width: usize, height: usize, rows: Vec<MazeRow>) -> Self {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Menu`
[INFO] [stdout]  --> src/menu.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum Menu {
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "24b37fcd3dcc7808a0814a29b61a72f5cd60f1bdf0451df82549d4969fe80b4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24b37fcd3dcc7808a0814a29b61a72f5cd60f1bdf0451df82549d4969fe80b4e", kill_on_drop: false }`
[INFO] [stdout] 24b37fcd3dcc7808a0814a29b61a72f5cd60f1bdf0451df82549d4969fe80b4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c28de6eabe011db0201875d8f18c2cef2f03501bf31e2e8b3ade58df4bbd7533
[INFO] running `Command { std: "docker" "start" "-a" "c28de6eabe011db0201875d8f18c2cef2f03501bf31e2e8b3ade58df4bbd7533", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling maze-game-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `MazeCell`, `MazeKind`, `Maze`
[INFO] [stdout]  --> src/player.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::maze::{Maze, MazeCell, MazeKind};
[INFO] [stdout]   |                   ^^^^  ^^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::maze::MazeKind::Start`
[INFO] [stdout]  --> src/player.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::maze::MazeKind::Start;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/maze.rs:99:13
[INFO] [stdout]    |
[INFO] [stdout] 99 |         for i in 0..5 {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/maze.rs:118:13
[INFO] [stdout]     |
[INFO] [stdout] 118 |         for i in 0..5
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/maze.rs:121:17
[INFO] [stdout]     |
[INFO] [stdout] 121 |             for i in 0..5
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Wall`
[INFO] [stdout]  --> src/maze.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     Wall,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `End`
[INFO] [stdout]   --> src/maze.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     End,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `MazeDirection`
[INFO] [stdout]   --> src/maze.rs:26:6
[INFO] [stdout]    |
[INFO] [stdout] 26 | enum MazeDirection {
[INFO] [stdout]    |      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `MazeKindAnnotation`
[INFO] [stdout]   --> src/maze.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub type MazeKindAnnotation = BTreeMap<String, MazeKind>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `compare`
[INFO] [stdout]   --> src/maze.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn compare(a: &MazeKind, b: &MazeKind) -> bool {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Menu`
[INFO] [stdout]  --> src/menu.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | enum Menu {
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.69s
[INFO] running `Command { std: "docker" "inspect" "c28de6eabe011db0201875d8f18c2cef2f03501bf31e2e8b3ade58df4bbd7533", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c28de6eabe011db0201875d8f18c2cef2f03501bf31e2e8b3ade58df4bbd7533", kill_on_drop: false }`
[INFO] [stdout] c28de6eabe011db0201875d8f18c2cef2f03501bf31e2e8b3ade58df4bbd7533
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 27801af081d08c73c60fe92b41a130cb5ef8941269597e947605ca0f9fecf315
[INFO] running `Command { std: "docker" "start" "-a" "27801af081d08c73c60fe92b41a130cb5ef8941269597e947605ca0f9fecf315", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused imports: `MazeCell`, `MazeKind`, `Maze`
[INFO] [stderr]  --> src/player.rs:1:19
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::maze::{Maze, MazeCell, MazeKind};
[INFO] [stderr]   |                   ^^^^  ^^^^^^^^  ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::maze::MazeKind::Start`
[INFO] [stderr]  --> src/player.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::maze::MazeKind::Start;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/maze.rs:99:13
[INFO] [stderr]    |
[INFO] [stderr] 99 |         for i in 0..5 {
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/maze.rs:118:13
[INFO] [stderr]     |
[INFO] [stderr] 118 |         for i in 0..5
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/maze.rs:121:17
[INFO] [stderr]     |
[INFO] [stderr] 121 |             for i in 0..5
[INFO] [stderr]     |                 ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Wall`
[INFO] [stderr]  --> src/maze.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     Wall,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `End`
[INFO] [stderr]   --> src/maze.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     End,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `MazeDirection`
[INFO] [stderr]   --> src/maze.rs:26:6
[INFO] [stderr]    |
[INFO] [stderr] 26 | enum MazeDirection {
[INFO] [stderr]    |      ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `MazeKindAnnotation`
[INFO] [stderr]   --> src/maze.rs:33:1
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub type MazeKindAnnotation = BTreeMap<String, MazeKind>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `compare`
[INFO] [stderr]   --> src/maze.rs:61:12
[INFO] [stderr]    |
[INFO] [stderr] 61 |     pub fn compare(a: &MazeKind, b: &MazeKind) -> bool {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Menu`
[INFO] [stderr]  --> src/menu.rs:4:6
[INFO] [stderr]   |
[INFO] [stderr] 4 | enum Menu {
[INFO] [stderr]   |      ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `maze-game-rust` (bin "maze-game-rust" test) generated 11 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/maze_game_rust-e9e24f5fd384a9d5)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test maze::test::should_create_maze_cell ... ok
[INFO] [stdout] test maze::test::should_create_maze ... ok
[INFO] [stdout] test maze::test::should_create_maze_row ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "27801af081d08c73c60fe92b41a130cb5ef8941269597e947605ca0f9fecf315", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27801af081d08c73c60fe92b41a130cb5ef8941269597e947605ca0f9fecf315", kill_on_drop: false }`
[INFO] [stdout] 27801af081d08c73c60fe92b41a130cb5ef8941269597e947605ca0f9fecf315