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[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ai/genetic_algorithm.rs:89:25
[INFO] [stdout]    |
[INFO] [stdout] 89 |                     let mut normal = Normal::new(0.0, *mutation_range)
[INFO] [stdout]    |                         ----^^^^^^
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SnakeGameState` is never constructed
[INFO] [stdout]   --> src/visualisation/game.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct SnakeGameState {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `generate_new_food` are never used
[INFO] [stdout]   --> src/visualisation/game.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl SnakeGameState {
[INFO] [stdout]    | ------------------- associated items in this implementation
[INFO] [stdout] 20 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub fn generate_new_food(&mut self) -> Food {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `play_game` is never used
[INFO] [stdout]    --> src/visualisation/game.rs:116:8
[INFO] [stdout]     |
[INFO] [stdout] 116 | pub fn play_game() -> GameResult {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `rng` is never read
[INFO] [stdout]   --> src/visualisation/ml_game.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct MLSnakeGameState {
[INFO] [stdout]    |        ---------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 22 |     rng: ThreadRng,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `n_of_generations` is never read
[INFO] [stdout]   --> src/ai/genetic_algorithm.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub(crate) struct Population {
[INFO] [stdout]    |                   ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 17 |     n_of_generations: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/ai/neural_network.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl NeuralNetwork {
[INFO] [stdout]    | ------------------ associated function in this implementation
[INFO] [stdout] 12 |     pub fn new(options: NeuralNetworkOptions) -> Result<Self, String> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `OUTPUT_LAYER_SIZE` is never used
[INFO] [stdout]   --> src/ai/snake_trainer.rs:11:11
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub const OUTPUT_LAYER_SIZE: usize = 3;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Move` is never used
[INFO] [stdout]    --> src/ai/snake_trainer.rs:161:10
[INFO] [stdout]     |
[INFO] [stdout] 161 | pub enum Move {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `move_in_dir_with_move` is never used
[INFO] [stdout]    --> src/snake/snake_game.rs:321:12
[INFO] [stdout]     |
[INFO] [stdout] 216 | impl Snake {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 321 |     pub fn move_in_dir_with_move(&mut self, move_dir: Move) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
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[INFO] [stdout] 9e8220c74834ddf3b2556c12623b15c8155cccc3c0cf388d85666777cf906ee2
[INFO] running `Command { std: "docker" "start" "-a" "9e8220c74834ddf3b2556c12623b15c8155cccc3c0cf388d85666777cf906ee2", kill_on_drop: false }`
[INFO] [stderr]    Compiling snake v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/ai/genetic_algorithm.rs:89:25
[INFO] [stdout]    |
[INFO] [stdout] 89 |                     let mut normal = Normal::new(0.0, *mutation_range)
[INFO] [stdout]    |                         ----^^^^^^
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SnakeGameState` is never constructed
[INFO] [stdout]   --> src/visualisation/game.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct SnakeGameState {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `generate_new_food` are never used
[INFO] [stdout]   --> src/visualisation/game.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl SnakeGameState {
[INFO] [stdout]    | ------------------- associated items in this implementation
[INFO] [stdout] 20 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub fn generate_new_food(&mut self) -> Food {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `play_game` is never used
[INFO] [stdout]    --> src/visualisation/game.rs:116:8
[INFO] [stdout]     |
[INFO] [stdout] 116 | pub fn play_game() -> GameResult {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `rng` is never read
[INFO] [stdout]   --> src/visualisation/ml_game.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct MLSnakeGameState {
[INFO] [stdout]    |        ---------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 22 |     rng: ThreadRng,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `n_of_generations` is never read
[INFO] [stdout]   --> src/ai/genetic_algorithm.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub(crate) struct Population {
[INFO] [stdout]    |                   ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 17 |     n_of_generations: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `OUTPUT_LAYER_SIZE` is never used
[INFO] [stdout]   --> src/ai/snake_trainer.rs:11:11
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub const OUTPUT_LAYER_SIZE: usize = 3;
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Move` is never used
[INFO] [stdout]    --> src/ai/snake_trainer.rs:161:10
[INFO] [stdout]     |
[INFO] [stdout] 161 | pub enum Move {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `move_in_dir_with_move` is never used
[INFO] [stdout]    --> src/snake/snake_game.rs:321:12
[INFO] [stdout]     |
[INFO] [stdout] 216 | impl Snake {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 321 |     pub fn move_in_dir_with_move(&mut self, move_dir: Move) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `Command { std: "docker" "inspect" "9e8220c74834ddf3b2556c12623b15c8155cccc3c0cf388d85666777cf906ee2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e8220c74834ddf3b2556c12623b15c8155cccc3c0cf388d85666777cf906ee2", kill_on_drop: false }`
[INFO] [stdout] 9e8220c74834ddf3b2556c12623b15c8155cccc3c0cf388d85666777cf906ee2
