[INFO] cloning repository https://github.com/matthsp/aoc-2024-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/matthsp/aoc-2024-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthsp%2Faoc-2024-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthsp%2Faoc-2024-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ed234d149fe6ba795eed6c4d341e612498359608
[INFO] checking matthsp/aoc-2024-rust against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatthsp%2Faoc-2024-rust" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-1-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/matthsp/aoc-2024-rust
[INFO] finished tweaking git repo https://github.com/matthsp/aoc-2024-rust
[INFO] tweaked toml for git repo https://github.com/matthsp/aoc-2024-rust written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/matthsp/aoc-2024-rust on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/matthsp/aoc-2024-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f1026040dd8fb8b736b2fad21bb8790511e336296c339a0066cc31c37637c907
[INFO] running `Command { std: "docker" "start" "-a" "f1026040dd8fb8b736b2fad21bb8790511e336296c339a0066cc31c37637c907", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1026040dd8fb8b736b2fad21bb8790511e336296c339a0066cc31c37637c907", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1026040dd8fb8b736b2fad21bb8790511e336296c339a0066cc31c37637c907", kill_on_drop: false }`
[INFO] [stdout] f1026040dd8fb8b736b2fad21bb8790511e336296c339a0066cc31c37637c907
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75864a58b1aa9a8d9876278343897bdc819ceea28e4d59332e2cb6c995f9e1ec
[INFO] running `Command { std: "docker" "start" "-a" "75864a58b1aa9a8d9876278343897bdc819ceea28e4d59332e2cb6c995f9e1ec", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking pico-args v0.5.0
[INFO] [stderr]     Checking tinyjson v2.5.1
[INFO] [stderr]     Checking itertools v0.13.0
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking advent_of_code v0.11.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::hash::Hash`
[INFO] [stdout]  --> src/bin/21.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::hash::Hash;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_keypad` is never used
[INFO] [stdout]  --> src/bin/21.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn get_keypad() -> Vec<Vec<u8>> {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_control_pad` is never used
[INFO] [stdout]   --> src/bin/21.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn get_control_pad() -> Vec<Vec<u8>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> src/bin/utils/grid_utils.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::fmt::{Debug, Display};
[INFO] [stdout]   |                       ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/bin/22.rs:58:49
[INFO] [stdout]    |
[INFO] [stdout] 58 |     let max_bananas = cache.iter().max_by_key(|(key, &val)| val);
[INFO] [stdout]    |                                                 ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/bin/15.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut matrix: Vec<Vec<char>>;
[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: unused import: `VecDeque`
[INFO] [stdout]  --> src/bin/16.rs:1:54
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{BinaryHeap, HashMap, HashSet, VecDeque};
[INFO] [stdout]   |                                                      ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Position`
[INFO] [stdout]  --> src/bin/16.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use itertools::Position;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> src/bin/utils/grid_utils.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::fmt::{Debug, Display};
[INFO] [stdout]   |                       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `get_value_from_grid_pos` and `is_in_boundaries`
[INFO] [stdout]  --> src/bin/16.rs:6:69
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::utils::{parse_grid, Pos, Direction, CARDINAL_DIRECTIONS, is_in_boundaries, get_value_from_grid_pos, Maze};
[INFO] [stdout]   |                                                                     ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `NorthEast`, `SouthEast`, `SouthWest`, and `NorthWest` are never constructed
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub enum Direction {
[INFO] [stdout]    |          --------- variants in this enum
[INFO] [stdout] 10 |     North,
[INFO] [stdout] 11 |     NorthEast,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 12 |     East,
[INFO] [stdout] 13 |     SouthEast,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 14 |     South,
[INFO] [stdout] 15 |     SouthWest,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 16 |     West,
[INFO] [stdout] 17 |     NorthWest,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Direction` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_axis` is never used
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl Direction {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 21 |     pub fn get_axis(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CARDINAL_DIRECTIONS` is never used
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:31:11
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub const CARDINAL_DIRECTIONS: [Direction; 4] = [
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `neighbor_in_grid` and `neighbors` are never used
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:84:12
[INFO] [stdout]    |
[INFO] [stdout] 65 | impl Pos {
[INFO] [stdout]    | -------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 84 |     pub fn neighbor_in_grid(&self, direction: Direction, grid: &Vec<Vec<char>>) -> Option<(Pos, char)> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 95 |     pub fn neighbors(&self, directions: &[Direction]) -> Vec<Pos> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_in_boundaries` is never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub fn is_in_boundaries(grid: &Vec<Vec<char>>, pos: Pos) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Edge` is never constructed
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 108 | pub struct Edge {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `contains`, and `length` are never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:115:12
[INFO] [stdout]     |
[INFO] [stdout] 113 | impl Edge {
[INFO] [stdout]     | --------- associated items in this implementation
[INFO] [stdout] 114 |     // Constructor method to create a new Edge
[INFO] [stdout] 115 |     pub fn new(start: Pos, end: Pos) -> Self { Edge { start, end } }
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 116 |
[INFO] [stdout] 117 |     pub fn contains(&self, pos: &Pos) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 146 |     pub fn length(&self) -> f64 {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_grid` is never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:153:8
[INFO] [stdout]     |
[INFO] [stdout] 153 | pub fn parse_grid(input: &str) -> Vec<Vec<char>>
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_value_from_grid` is never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:163:8
[INFO] [stdout]     |
[INFO] [stdout] 163 | pub fn get_value_from_grid<T>(grid: &Vec<Vec<T>>, x: usize, y: usize) -> Option<&T> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Graph` is never constructed
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:180:12
[INFO] [stdout]     |
[INFO] [stdout] 180 | pub struct Graph<N> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add_node`, `has_node`, `add_edge`, `has_edge`, and `neighbors` are never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:185:12
[INFO] [stdout]     |
[INFO] [stdout] 184 | impl<N: Eq + Hash + Clone> Graph<N> {
[INFO] [stdout]     | ----------------------------------- associated items in this implementation
[INFO] [stdout] 185 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 189 |     pub fn add_node(&mut self, node: N) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 193 |     pub fn has_node(&self, node: &N) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 197 |     pub fn add_edge(&mut self, node1: N, node2: N) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 207 |     pub fn has_edge(&self, node1: &N, node2: &N) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 215 |     pub fn neighbors(&self, node: &N) -> Option<&HashSet<N>> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bron_kerbosch` is never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:220:4
[INFO] [stdout]     |
[INFO] [stdout] 220 | fn bron_kerbosch<'a>(
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Maze` is never constructed
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:245:12
[INFO] [stdout]     |
[INFO] [stdout] 245 | pub struct Maze {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `dijkstra` and `dijkstra_with_backtrack` are never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:290:12
[INFO] [stdout]     |
[INFO] [stdout] 289 | impl Maze {
[INFO] [stdout]     | --------- methods in this implementation
[INFO] [stdout] 290 |     pub fn dijkstra(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 344 |     pub fn dijkstra_with_backtrack(&self, min_cost: usize, direction: &Direction) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tile` is never constructed
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:408:8
[INFO] [stdout]     |
[INFO] [stdout] 408 | struct Tile {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:88:12
[INFO] [stdout]    |
[INFO] [stdout] 88 |         if x < 0 || x >= grid.len() || y < 0 || y >= grid[0].len() {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:88:40
[INFO] [stdout]    |
[INFO] [stdout] 88 |         if x < 0 || x >= grid.len() || y < 0 || y >= grid[0].len() {
[INFO] [stdout]    |                                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:104:5
[INFO] [stdout]     |
[INFO] [stdout] 104 |     x < 0 || x >= grid.len() || y < 0 || y >= grid[0].len()
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:104:33
[INFO] [stdout]     |
[INFO] [stdout] 104 |     x < 0 || x >= grid.len() || y < 0 || y >= grid[0].len()
[INFO] [stdout]     |                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `)`, `,`, `.`, `?`, or an operator, found `r`
[INFO] [stdout]    --> src/bin/23.rs:124:58
[INFO] [stdout]     |
[INFO] [stdout] 124 |         assert_eq!(result, Some("co,de,ka,ta".to_string()r));
[INFO] [stdout]     |                                                          ^
[INFO] [stdout]     |                                                          |
[INFO] [stdout]     |                                                          expected one of `)`, `,`, `.`, `?`, or an operator
[INFO] [stdout]     |                                                          help: missing `,`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `r` in this scope
[INFO] [stdout]    --> src/bin/23.rs:124:58
[INFO] [stdout]     |
[INFO] [stdout] 124 |         assert_eq!(result, Some("co,de,ka,ta".to_string()r));
[INFO] [stdout]     |                                                          ^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> src/bin/utils/grid_utils.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::fmt::{Debug, Display};
[INFO] [stdout]   |                       ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/bin/22.rs:58:49
[INFO] [stdout]    |
[INFO] [stdout] 58 |     let max_bananas = cache.iter().max_by_key(|(key, &val)| val);
[INFO] [stdout]    |                                                 ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tile` is never constructed
[INFO] [stdout]    --> src/bin/16.rs:124:8
[INFO] [stdout]     |
[INFO] [stdout] 124 | struct Tile {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dijkstra_with_backtrack` is never used
[INFO] [stdout]    --> src/bin/16.rs:131:4
[INFO] [stdout]     |
[INFO] [stdout] 131 | fn dijkstra_with_backtrack(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `NorthEast`, `SouthEast`, `SouthWest`, and `NorthWest` are never constructed
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub enum Direction {
[INFO] [stdout]    |          --------- variants in this enum
[INFO] [stdout] 10 |     North,
[INFO] [stdout] 11 |     NorthEast,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 12 |     East,
[INFO] [stdout] 13 |     SouthEast,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 14 |     South,
[INFO] [stdout] 15 |     SouthWest,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 16 |     West,
[INFO] [stdout] 17 |     NorthWest,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Direction` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `neighbor_in_grid` and `neighbors` are never used
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:84:12
[INFO] [stdout]    |
[INFO] [stdout] 65 | impl Pos {
[INFO] [stdout]    | -------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 84 |     pub fn neighbor_in_grid(&self, direction: Direction, grid: &Vec<Vec<char>>) -> Option<(Pos, char)> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 95 |     pub fn neighbors(&self, directions: &[Direction]) -> Vec<Pos> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_in_boundaries` is never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub fn is_in_boundaries(grid: &Vec<Vec<char>>, pos: Pos) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Edge` is never constructed
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 108 | pub struct Edge {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `contains`, and `length` are never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:115:12
[INFO] [stdout]     |
[INFO] [stdout] 113 | impl Edge {
[INFO] [stdout]     | --------- associated items in this implementation
[INFO] [stdout] 114 |     // Constructor method to create a new Edge
[INFO] [stdout] 115 |     pub fn new(start: Pos, end: Pos) -> Self { Edge { start, end } }
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 116 |
[INFO] [stdout] 117 |     pub fn contains(&self, pos: &Pos) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 146 |     pub fn length(&self) -> f64 {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_value_from_grid` is never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:163:8
[INFO] [stdout]     |
[INFO] [stdout] 163 | pub fn get_value_from_grid<T>(grid: &Vec<Vec<T>>, x: usize, y: usize) -> Option<&T> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_value_from_grid_pos` is never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:171:8
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub fn get_value_from_grid_pos<T>(grid: &Vec<Vec<T>>, pos: Pos) -> Option<&T> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Graph` is never constructed
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:180:12
[INFO] [stdout]     |
[INFO] [stdout] 180 | pub struct Graph<N> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add_node`, `has_node`, `add_edge`, `has_edge`, and `neighbors` are never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:185:12
[INFO] [stdout]     |
[INFO] [stdout] 184 | impl<N: Eq + Hash + Clone> Graph<N> {
[INFO] [stdout]     | ----------------------------------- associated items in this implementation
[INFO] [stdout] 185 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 189 |     pub fn add_node(&mut self, node: N) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 193 |     pub fn has_node(&self, node: &N) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 197 |     pub fn add_edge(&mut self, node1: N, node2: N) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 207 |     pub fn has_edge(&self, node1: &N, node2: &N) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 215 |     pub fn neighbors(&self, node: &N) -> Option<&HashSet<N>> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bron_kerbosch` is never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:220:4
[INFO] [stdout]     |
[INFO] [stdout] 220 | fn bron_kerbosch<'a>(
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:88:12
[INFO] [stdout]    |
[INFO] [stdout] 88 |         if x < 0 || x >= grid.len() || y < 0 || y >= grid[0].len() {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:88:40
[INFO] [stdout]    |
[INFO] [stdout] 88 |         if x < 0 || x >= grid.len() || y < 0 || y >= grid[0].len() {
[INFO] [stdout]    |                                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:104:5
[INFO] [stdout]     |
[INFO] [stdout] 104 |     x < 0 || x >= grid.len() || y < 0 || y >= grid[0].len()
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:104:33
[INFO] [stdout]     |
[INFO] [stdout] 104 |     x < 0 || x >= grid.len() || y < 0 || y >= grid[0].len()
[INFO] [stdout]     |                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> src/bin/utils/grid_utils.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::fmt::{Debug, Display};
[INFO] [stdout]   |                       ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `HashSet`
[INFO] [stdout]  --> src/bin/20.rs:4:45
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::collections::{BinaryHeap, HashMap, HashSet};
[INFO] [stdout]   |                                             ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Direction`
[INFO] [stdout]  --> src/bin/20.rs:6:37
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::utils::{parse_grid, Pos, Direction, get_value_from_grid, CARDINAL_DIRECTIONS};
[INFO] [stdout]   |                                     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]    --> src/bin/20.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 110 |     for (tuple) in path.iter().tuple_combinations() {
[INFO] [stdout]     |         ^     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 110 -     for (tuple) in path.iter().tuple_combinations() {
[INFO] [stdout] 110 +     for tuple in path.iter().tuple_combinations() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]    --> src/bin/20.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |     for (tuple) in path.iter().tuple_combinations() {
[INFO] [stdout]     |         ^     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 136 -     for (tuple) in path.iter().tuple_combinations() {
[INFO] [stdout] 136 +     for tuple in path.iter().tuple_combinations() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> src/bin/utils/grid_utils.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::fmt::{Debug, Display};
[INFO] [stdout]   |                       ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BinaryHeap`, `HashMap`, and `HashSet`
[INFO] [stdout]  --> src/bin/18.rs:3:24
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::collections::{BinaryHeap, HashMap, HashSet, VecDeque};
[INFO] [stdout]   |                        ^^^^^^^^^^  ^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&Vec<usize>` instead of cloning the inner type
[INFO] [stdout]   --> src/bin/25.rs:51:18
[INFO] [stdout]    |
[INFO] [stdout] 51 |             (lock.clone(), keys.iter().filter(|key| {
[INFO] [stdout]    |                  ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&Vec<usize>` instead of cloning the inner type
[INFO] [stdout]   --> src/bin/25.rs:51:18
[INFO] [stdout]    |
[INFO] [stdout] 51 |             (lock.clone(), keys.iter().filter(|key| {
[INFO] [stdout]    |                  ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this enum variant takes 1 argument but 2 arguments were supplied
[INFO] [stdout]    --> src/bin/23.rs:124:28
[INFO] [stdout]     |
[INFO] [stdout] 124 |         assert_eq!(result, Some("co,de,ka,ta".to_string()r));
[INFO] [stdout]     |                            ^^^^                          - unexpected argument #2
[INFO] [stdout]     |
[INFO] [stdout] note: tuple variant defined here
[INFO] [stdout]    --> /rustc/c659ee110de67e82444e4b6c8407c1a9af9c2cf6/library/core/src/option.rs:601:5
[INFO] [stdout] help: remove the extra argument
[INFO] [stdout]     |
[INFO] [stdout] 124 -         assert_eq!(result, Some("co,de,ka,ta".to_string()r));
[INFO] [stdout] 124 +         assert_eq!(result, Some("co,de,ka,ta".to_string()));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]   --> src/bin/23.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |         if let neighbors = graph.neighbors(node).unwrap().iter().collect_vec() {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]    = help: consider replacing the `if let` with a `let`
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0061, E0425.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `VecDeque`
[INFO] [stdout]  --> src/bin/16.rs:1:54
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{BinaryHeap, HashMap, HashSet, VecDeque};
[INFO] [stdout]   |                                                      ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Position`
[INFO] [stdout]  --> src/bin/16.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use itertools::Position;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> src/bin/utils/grid_utils.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::fmt::{Debug, Display};
[INFO] [stdout]   |                       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `get_value_from_grid_pos` and `is_in_boundaries`
[INFO] [stdout]  --> src/bin/16.rs:6:69
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::utils::{parse_grid, Pos, Direction, CARDINAL_DIRECTIONS, is_in_boundaries, get_value_from_grid_pos, Maze};
[INFO] [stdout]   |                                                                     ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `advent_of_code` (bin "23" test) due to 3 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused import: `std::hash::Hash`
[INFO] [stdout]  --> src/bin/21.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::hash::Hash;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::Ordering::*`
[INFO] [stdout]  --> src/bin/14.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::cmp::Ordering::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> src/bin/utils/grid_utils.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::fmt::{Debug, Display};
[INFO] [stdout]   |                       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Display`
[INFO] [stdout]  --> src/bin/utils/grid_utils.rs:5:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::fmt::{Debug, Display};
[INFO] [stdout]   |                       ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_keypad` is never used
[INFO] [stdout]  --> src/bin/21.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn get_keypad() -> Vec<Vec<u8>> {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_control_pad` is never used
[INFO] [stdout]   --> src/bin/21.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn get_control_pad() -> Vec<Vec<u8>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/20.rs:68:17
[INFO] [stdout]    |
[INFO] [stdout] 68 |             let mut activate_hack = hack_activated.clone();
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/20.rs:69:17
[INFO] [stdout]    |
[INFO] [stdout] 69 |             let mut hack_new_count = hack_count.clone();
[INFO] [stdout]    |                 ----^^^^^^^^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `NorthEast`, `SouthEast`, `SouthWest`, and `NorthWest` are never constructed
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub enum Direction {
[INFO] [stdout]    |          --------- variants in this enum
[INFO] [stdout] 10 |     North,
[INFO] [stdout] 11 |     NorthEast,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 12 |     East,
[INFO] [stdout] 13 |     SouthEast,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 14 |     South,
[INFO] [stdout] 15 |     SouthWest,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 16 |     West,
[INFO] [stdout] 17 |     NorthWest,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Direction` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_axis` is never used
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl Direction {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 21 |     pub fn get_axis(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `neighbor_in_grid` and `neighbors` are never used
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:84:12
[INFO] [stdout]    |
[INFO] [stdout] 65 | impl Pos {
[INFO] [stdout]    | -------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 84 |     pub fn neighbor_in_grid(&self, direction: Direction, grid: &Vec<Vec<char>>) -> Option<(Pos, char)> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 95 |     pub fn neighbors(&self, directions: &[Direction]) -> Vec<Pos> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_in_boundaries` is never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub fn is_in_boundaries(grid: &Vec<Vec<char>>, pos: Pos) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Edge` is never constructed
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 108 | pub struct Edge {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `contains`, and `length` are never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:115:12
[INFO] [stdout]     |
[INFO] [stdout] 113 | impl Edge {
[INFO] [stdout]     | --------- associated items in this implementation
[INFO] [stdout] 114 |     // Constructor method to create a new Edge
[INFO] [stdout] 115 |     pub fn new(start: Pos, end: Pos) -> Self { Edge { start, end } }
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 116 |
[INFO] [stdout] 117 |     pub fn contains(&self, pos: &Pos) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 146 |     pub fn length(&self) -> f64 {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_value_from_grid_pos` is never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:171:8
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub fn get_value_from_grid_pos<T>(grid: &Vec<Vec<T>>, pos: Pos) -> Option<&T> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Graph` is never constructed
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:180:12
[INFO] [stdout]     |
[INFO] [stdout] 180 | pub struct Graph<N> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add_node`, `has_node`, `add_edge`, `has_edge`, and `neighbors` are never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:185:12
[INFO] [stdout]     |
[INFO] [stdout] 184 | impl<N: Eq + Hash + Clone> Graph<N> {
[INFO] [stdout]     | ----------------------------------- associated items in this implementation
[INFO] [stdout] 185 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 189 |     pub fn add_node(&mut self, node: N) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 193 |     pub fn has_node(&self, node: &N) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 197 |     pub fn add_edge(&mut self, node1: N, node2: N) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 207 |     pub fn has_edge(&self, node1: &N, node2: &N) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 215 |     pub fn neighbors(&self, node: &N) -> Option<&HashSet<N>> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bron_kerbosch` is never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:220:4
[INFO] [stdout]     |
[INFO] [stdout] 220 | fn bron_kerbosch<'a>(
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Maze` is never constructed
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:245:12
[INFO] [stdout]     |
[INFO] [stdout] 245 | pub struct Maze {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `dijkstra` and `dijkstra_with_backtrack` are never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:290:12
[INFO] [stdout]     |
[INFO] [stdout] 289 | impl Maze {
[INFO] [stdout]     | --------- methods in this implementation
[INFO] [stdout] 290 |     pub fn dijkstra(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 344 |     pub fn dijkstra_with_backtrack(&self, min_cost: usize, direction: &Direction) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tile` is never constructed
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:408:8
[INFO] [stdout]     |
[INFO] [stdout] 408 | struct Tile {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:88:12
[INFO] [stdout]    |
[INFO] [stdout] 88 |         if x < 0 || x >= grid.len() || y < 0 || y >= grid[0].len() {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:88:40
[INFO] [stdout]    |
[INFO] [stdout] 88 |         if x < 0 || x >= grid.len() || y < 0 || y >= grid[0].len() {
[INFO] [stdout]    |                                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:104:5
[INFO] [stdout]     |
[INFO] [stdout] 104 |     x < 0 || x >= grid.len() || y < 0 || y >= grid[0].len()
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:104:33
[INFO] [stdout]     |
[INFO] [stdout] 104 |     x < 0 || x >= grid.len() || y < 0 || y >= grid[0].len()
[INFO] [stdout]     |                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tile` is never constructed
[INFO] [stdout]    --> src/bin/16.rs:124:8
[INFO] [stdout]     |
[INFO] [stdout] 124 | struct Tile {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dijkstra_with_backtrack` is never used
[INFO] [stdout]    --> src/bin/16.rs:131:4
[INFO] [stdout]     |
[INFO] [stdout] 131 | fn dijkstra_with_backtrack(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `NorthEast`, `SouthEast`, `SouthWest`, and `NorthWest` are never constructed
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub enum Direction {
[INFO] [stdout]    |          --------- variants in this enum
[INFO] [stdout] 10 |     North,
[INFO] [stdout] 11 |     NorthEast,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 12 |     East,
[INFO] [stdout] 13 |     SouthEast,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 14 |     South,
[INFO] [stdout] 15 |     SouthWest,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 16 |     West,
[INFO] [stdout] 17 |     NorthWest,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Direction` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `neighbor_in_grid` and `neighbors` are never used
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:84:12
[INFO] [stdout]    |
[INFO] [stdout] 65 | impl Pos {
[INFO] [stdout]    | -------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 84 |     pub fn neighbor_in_grid(&self, direction: Direction, grid: &Vec<Vec<char>>) -> Option<(Pos, char)> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 95 |     pub fn neighbors(&self, directions: &[Direction]) -> Vec<Pos> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_in_boundaries` is never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub fn is_in_boundaries(grid: &Vec<Vec<char>>, pos: Pos) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Edge` is never constructed
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 108 | pub struct Edge {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `contains`, and `length` are never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:115:12
[INFO] [stdout]     |
[INFO] [stdout] 113 | impl Edge {
[INFO] [stdout]     | --------- associated items in this implementation
[INFO] [stdout] 114 |     // Constructor method to create a new Edge
[INFO] [stdout] 115 |     pub fn new(start: Pos, end: Pos) -> Self { Edge { start, end } }
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 116 |
[INFO] [stdout] 117 |     pub fn contains(&self, pos: &Pos) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 146 |     pub fn length(&self) -> f64 {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_value_from_grid` is never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:163:8
[INFO] [stdout]     |
[INFO] [stdout] 163 | pub fn get_value_from_grid<T>(grid: &Vec<Vec<T>>, x: usize, y: usize) -> Option<&T> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_value_from_grid_pos` is never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:171:8
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub fn get_value_from_grid_pos<T>(grid: &Vec<Vec<T>>, pos: Pos) -> Option<&T> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Graph` is never constructed
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:180:12
[INFO] [stdout]     |
[INFO] [stdout] 180 | pub struct Graph<N> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/bin/15.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut matrix: Vec<Vec<char>>;
[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: associated items `new`, `add_node`, `has_node`, `add_edge`, `has_edge`, and `neighbors` are never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:185:12
[INFO] [stdout]     |
[INFO] [stdout] 184 | impl<N: Eq + Hash + Clone> Graph<N> {
[INFO] [stdout]     | ----------------------------------- associated items in this implementation
[INFO] [stdout] 185 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 189 |     pub fn add_node(&mut self, node: N) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 193 |     pub fn has_node(&self, node: &N) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 197 |     pub fn add_edge(&mut self, node1: N, node2: N) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 207 |     pub fn has_edge(&self, node1: &N, node2: &N) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 215 |     pub fn neighbors(&self, node: &N) -> Option<&HashSet<N>> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bron_kerbosch` is never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:220:4
[INFO] [stdout]     |
[INFO] [stdout] 220 | fn bron_kerbosch<'a>(
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:88:12
[INFO] [stdout]    |
[INFO] [stdout] 88 |         if x < 0 || x >= grid.len() || y < 0 || y >= grid[0].len() {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:88:40
[INFO] [stdout]    |
[INFO] [stdout] 88 |         if x < 0 || x >= grid.len() || y < 0 || y >= grid[0].len() {
[INFO] [stdout]    |                                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:104:5
[INFO] [stdout]     |
[INFO] [stdout] 104 |     x < 0 || x >= grid.len() || y < 0 || y >= grid[0].len()
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:104:33
[INFO] [stdout]     |
[INFO] [stdout] 104 |     x < 0 || x >= grid.len() || y < 0 || y >= grid[0].len()
[INFO] [stdout]     |                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `NorthEast`, `SouthEast`, `SouthWest`, and `NorthWest` are never constructed
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub enum Direction {
[INFO] [stdout]    |          --------- variants in this enum
[INFO] [stdout] 10 |     North,
[INFO] [stdout] 11 |     NorthEast,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 12 |     East,
[INFO] [stdout] 13 |     SouthEast,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 14 |     South,
[INFO] [stdout] 15 |     SouthWest,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 16 |     West,
[INFO] [stdout] 17 |     NorthWest,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Direction` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `display_grid` is never used
[INFO] [stdout]    --> src/bin/14.rs:117:4
[INFO] [stdout]     |
[INFO] [stdout] 117 | fn display_grid(positions: Vec<Pos>, width: usize, height: usize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Direction` is never used
[INFO] [stdout]  --> src/bin/utils/grid_utils.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub enum Direction {
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_axis` is never used
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl Direction {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 21 |     pub fn get_axis(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CARDINAL_DIRECTIONS` is never used
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:31:11
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub const CARDINAL_DIRECTIONS: [Direction; 4] = [
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `neighbor`, `neighbor_in_grid`, and `neighbors` are never used
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:69:12
[INFO] [stdout]    |
[INFO] [stdout] 65 | impl Pos {
[INFO] [stdout]    | -------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 69 |     pub fn neighbor(&self, direction: Direction) -> Pos {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 84 |     pub fn neighbor_in_grid(&self, direction: Direction, grid: &Vec<Vec<char>>) -> Option<(Pos, char)> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 95 |     pub fn neighbors(&self, directions: &[Direction]) -> Vec<Pos> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_in_boundaries` is never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub fn is_in_boundaries(grid: &Vec<Vec<char>>, pos: Pos) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Edge` is never constructed
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 108 | pub struct Edge {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `contains`, and `length` are never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:115:12
[INFO] [stdout]     |
[INFO] [stdout] 113 | impl Edge {
[INFO] [stdout]     | --------- associated items in this implementation
[INFO] [stdout] 114 |     // Constructor method to create a new Edge
[INFO] [stdout] 115 |     pub fn new(start: Pos, end: Pos) -> Self { Edge { start, end } }
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 116 |
[INFO] [stdout] 117 |     pub fn contains(&self, pos: &Pos) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 146 |     pub fn length(&self) -> f64 {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_grid` is never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:153:8
[INFO] [stdout]     |
[INFO] [stdout] 153 | pub fn parse_grid(input: &str) -> Vec<Vec<char>>
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_value_from_grid` is never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:163:8
[INFO] [stdout]     |
[INFO] [stdout] 163 | pub fn get_value_from_grid<T>(grid: &Vec<Vec<T>>, x: usize, y: usize) -> Option<&T> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_value_from_grid_pos` is never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:171:8
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub fn get_value_from_grid_pos<T>(grid: &Vec<Vec<T>>, pos: Pos) -> Option<&T> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Graph` is never constructed
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:180:12
[INFO] [stdout]     |
[INFO] [stdout] 180 | pub struct Graph<N> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add_node`, `has_node`, `add_edge`, `has_edge`, and `neighbors` are never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:185:12
[INFO] [stdout]     |
[INFO] [stdout] 184 | impl<N: Eq + Hash + Clone> Graph<N> {
[INFO] [stdout]     | ----------------------------------- associated items in this implementation
[INFO] [stdout] 185 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 189 |     pub fn add_node(&mut self, node: N) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 193 |     pub fn has_node(&self, node: &N) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 197 |     pub fn add_edge(&mut self, node1: N, node2: N) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 207 |     pub fn has_edge(&self, node1: &N, node2: &N) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 215 |     pub fn neighbors(&self, node: &N) -> Option<&HashSet<N>> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bron_kerbosch` is never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:220:4
[INFO] [stdout]     |
[INFO] [stdout] 220 | fn bron_kerbosch<'a>(
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Maze` is never constructed
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:245:12
[INFO] [stdout]     |
[INFO] [stdout] 245 | pub struct Maze {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `dijkstra` and `dijkstra_with_backtrack` are never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:290:12
[INFO] [stdout]     |
[INFO] [stdout] 289 | impl Maze {
[INFO] [stdout]     | --------- methods in this implementation
[INFO] [stdout] 290 |     pub fn dijkstra(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 344 |     pub fn dijkstra_with_backtrack(&self, min_cost: usize, direction: &Direction) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tile` is never constructed
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:408:8
[INFO] [stdout]     |
[INFO] [stdout] 408 | struct Tile {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:88:12
[INFO] [stdout]    |
[INFO] [stdout] 88 |         if x < 0 || x >= grid.len() || y < 0 || y >= grid[0].len() {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:88:40
[INFO] [stdout]    |
[INFO] [stdout] 88 |         if x < 0 || x >= grid.len() || y < 0 || y >= grid[0].len() {
[INFO] [stdout]    |                                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:104:5
[INFO] [stdout]     |
[INFO] [stdout] 104 |     x < 0 || x >= grid.len() || y < 0 || y >= grid[0].len()
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:104:33
[INFO] [stdout]     |
[INFO] [stdout] 104 |     x < 0 || x >= grid.len() || y < 0 || y >= grid[0].len()
[INFO] [stdout]     |                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_axis` is never used
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl Direction {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 21 |     pub fn get_axis(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CARDINAL_DIRECTIONS` is never used
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:31:11
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub const CARDINAL_DIRECTIONS: [Direction; 4] = [
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `neighbor_in_grid` and `neighbors` are never used
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:84:12
[INFO] [stdout]    |
[INFO] [stdout] 65 | impl Pos {
[INFO] [stdout]    | -------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 84 |     pub fn neighbor_in_grid(&self, direction: Direction, grid: &Vec<Vec<char>>) -> Option<(Pos, char)> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 95 |     pub fn neighbors(&self, directions: &[Direction]) -> Vec<Pos> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_in_boundaries` is never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub fn is_in_boundaries(grid: &Vec<Vec<char>>, pos: Pos) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Edge` is never constructed
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 108 | pub struct Edge {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `contains`, and `length` are never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:115:12
[INFO] [stdout]     |
[INFO] [stdout] 113 | impl Edge {
[INFO] [stdout]     | --------- associated items in this implementation
[INFO] [stdout] 114 |     // Constructor method to create a new Edge
[INFO] [stdout] 115 |     pub fn new(start: Pos, end: Pos) -> Self { Edge { start, end } }
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 116 |
[INFO] [stdout] 117 |     pub fn contains(&self, pos: &Pos) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 146 |     pub fn length(&self) -> f64 {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_grid` is never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:153:8
[INFO] [stdout]     |
[INFO] [stdout] 153 | pub fn parse_grid(input: &str) -> Vec<Vec<char>>
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_value_from_grid` is never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:163:8
[INFO] [stdout]     |
[INFO] [stdout] 163 | pub fn get_value_from_grid<T>(grid: &Vec<Vec<T>>, x: usize, y: usize) -> Option<&T> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Graph` is never constructed
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:180:12
[INFO] [stdout]     |
[INFO] [stdout] 180 | pub struct Graph<N> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add_node`, `has_node`, `add_edge`, `has_edge`, and `neighbors` are never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:185:12
[INFO] [stdout]     |
[INFO] [stdout] 184 | impl<N: Eq + Hash + Clone> Graph<N> {
[INFO] [stdout]     | ----------------------------------- associated items in this implementation
[INFO] [stdout] 185 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 189 |     pub fn add_node(&mut self, node: N) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 193 |     pub fn has_node(&self, node: &N) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 197 |     pub fn add_edge(&mut self, node1: N, node2: N) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 207 |     pub fn has_edge(&self, node1: &N, node2: &N) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 215 |     pub fn neighbors(&self, node: &N) -> Option<&HashSet<N>> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bron_kerbosch` is never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:220:4
[INFO] [stdout]     |
[INFO] [stdout] 220 | fn bron_kerbosch<'a>(
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Maze` is never constructed
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:245:12
[INFO] [stdout]     |
[INFO] [stdout] 245 | pub struct Maze {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `dijkstra` and `dijkstra_with_backtrack` are never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:290:12
[INFO] [stdout]     |
[INFO] [stdout] 289 | impl Maze {
[INFO] [stdout]     | --------- methods in this implementation
[INFO] [stdout] 290 |     pub fn dijkstra(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 344 |     pub fn dijkstra_with_backtrack(&self, min_cost: usize, direction: &Direction) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tile` is never constructed
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:408:8
[INFO] [stdout]     |
[INFO] [stdout] 408 | struct Tile {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:88:12
[INFO] [stdout]    |
[INFO] [stdout] 88 |         if x < 0 || x >= grid.len() || y < 0 || y >= grid[0].len() {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:88:40
[INFO] [stdout]    |
[INFO] [stdout] 88 |         if x < 0 || x >= grid.len() || y < 0 || y >= grid[0].len() {
[INFO] [stdout]    |                                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:104:5
[INFO] [stdout]     |
[INFO] [stdout] 104 |     x < 0 || x >= grid.len() || y < 0 || y >= grid[0].len()
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:104:33
[INFO] [stdout]     |
[INFO] [stdout] 104 |     x < 0 || x >= grid.len() || y < 0 || y >= grid[0].len()
[INFO] [stdout]     |                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `positions_left`
[INFO] [stdout]   --> src/bin/18.rs:73:10
[INFO] [stdout]    |
[INFO] [stdout] 73 |     let (positions_left, grid) = parse(input, size, bytes);
[INFO] [stdout]    |          ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_positions_left`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `State` is never constructed
[INFO] [stdout]  --> src/bin/18.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct State {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `NorthEast`, `SouthEast`, `SouthWest`, and `NorthWest` are never constructed
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub enum Direction {
[INFO] [stdout]    |          --------- variants in this enum
[INFO] [stdout] 10 |     North,
[INFO] [stdout] 11 |     NorthEast,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 12 |     East,
[INFO] [stdout] 13 |     SouthEast,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 14 |     South,
[INFO] [stdout] 15 |     SouthWest,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 16 |     West,
[INFO] [stdout] 17 |     NorthWest,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Direction` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_axis` is never used
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl Direction {
[INFO] [stdout]    | -------------- method in this implementation
[INFO] [stdout] 21 |     pub fn get_axis(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CARDINAL_DIRECTIONS` is never used
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:31:11
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub const CARDINAL_DIRECTIONS: [Direction; 4] = [
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `neighbor_in_grid` is never used
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:84:12
[INFO] [stdout]    |
[INFO] [stdout] 65 | impl Pos {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 84 |     pub fn neighbor_in_grid(&self, direction: Direction, grid: &Vec<Vec<char>>) -> Option<(Pos, char)> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_in_boundaries` is never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub fn is_in_boundaries(grid: &Vec<Vec<char>>, pos: Pos) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Edge` is never constructed
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 108 | pub struct Edge {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `contains`, and `length` are never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:115:12
[INFO] [stdout]     |
[INFO] [stdout] 113 | impl Edge {
[INFO] [stdout]     | --------- associated items in this implementation
[INFO] [stdout] 114 |     // Constructor method to create a new Edge
[INFO] [stdout] 115 |     pub fn new(start: Pos, end: Pos) -> Self { Edge { start, end } }
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 116 |
[INFO] [stdout] 117 |     pub fn contains(&self, pos: &Pos) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 146 |     pub fn length(&self) -> f64 {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_grid` is never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:153:8
[INFO] [stdout]     |
[INFO] [stdout] 153 | pub fn parse_grid(input: &str) -> Vec<Vec<char>>
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_value_from_grid_pos` is never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:171:8
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub fn get_value_from_grid_pos<T>(grid: &Vec<Vec<T>>, pos: Pos) -> Option<&T> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Graph` is never constructed
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:180:12
[INFO] [stdout]     |
[INFO] [stdout] 180 | pub struct Graph<N> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add_node`, `has_node`, `add_edge`, `has_edge`, and `neighbors` are never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:185:12
[INFO] [stdout]     |
[INFO] [stdout] 184 | impl<N: Eq + Hash + Clone> Graph<N> {
[INFO] [stdout]     | ----------------------------------- associated items in this implementation
[INFO] [stdout] 185 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 189 |     pub fn add_node(&mut self, node: N) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 193 |     pub fn has_node(&self, node: &N) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 197 |     pub fn add_edge(&mut self, node1: N, node2: N) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 207 |     pub fn has_edge(&self, node1: &N, node2: &N) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 215 |     pub fn neighbors(&self, node: &N) -> Option<&HashSet<N>> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bron_kerbosch` is never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:220:4
[INFO] [stdout]     |
[INFO] [stdout] 220 | fn bron_kerbosch<'a>(
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Maze` is never constructed
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:245:12
[INFO] [stdout]     |
[INFO] [stdout] 245 | pub struct Maze {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `dijkstra` and `dijkstra_with_backtrack` are never used
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:290:12
[INFO] [stdout]     |
[INFO] [stdout] 289 | impl Maze {
[INFO] [stdout]     | --------- methods in this implementation
[INFO] [stdout] 290 |     pub fn dijkstra(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 344 |     pub fn dijkstra_with_backtrack(&self, min_cost: usize, direction: &Direction) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tile` is never constructed
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:408:8
[INFO] [stdout]     |
[INFO] [stdout] 408 | struct Tile {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:88:12
[INFO] [stdout]    |
[INFO] [stdout] 88 |         if x < 0 || x >= grid.len() || y < 0 || y >= grid[0].len() {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/bin/utils/grid_utils.rs:88:40
[INFO] [stdout]    |
[INFO] [stdout] 88 |         if x < 0 || x >= grid.len() || y < 0 || y >= grid[0].len() {
[INFO] [stdout]    |                                        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:104:5
[INFO] [stdout]     |
[INFO] [stdout] 104 |     x < 0 || x >= grid.len() || y < 0 || y >= grid[0].len()
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]    --> src/bin/utils/grid_utils.rs:104:33
[INFO] [stdout]     |
[INFO] [stdout] 104 |     x < 0 || x >= grid.len() || y < 0 || y >= grid[0].len()
[INFO] [stdout]     |                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "75864a58b1aa9a8d9876278343897bdc819ceea28e4d59332e2cb6c995f9e1ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75864a58b1aa9a8d9876278343897bdc819ceea28e4d59332e2cb6c995f9e1ec", kill_on_drop: false }`
[INFO] [stdout] 75864a58b1aa9a8d9876278343897bdc819ceea28e4d59332e2cb6c995f9e1ec