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[INFO] [stdout] warning: unused import: `base_from_coords`
[INFO] [stdout]   --> src/graph.rs:78:17
[INFO] [stdout]    |
[INFO] [stdout] 78 |     use super::{base_from_coords, from_grid};
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Config` and `Dot`
[INFO] [stdout]   --> src/graph.rs:80:25
[INFO] [stdout]    |
[INFO] [stdout] 80 |     use petgraph::dot::{Config, Dot};
[INFO] [stdout]    |                         ^^^^^^  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `binary_tree_cell` is never used
[INFO] [stdout]  --> src/algorithms.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn binary_tree_cell(some_cell: &mut cell::Cell) -> &mut cell::Cell {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `binary_tree` is never used
[INFO] [stdout]   --> src/algorithms.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn binary_tree(some_grid: &grid::Grid) -> grid::Grid {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sidewinder` is never used
[INFO] [stdout]   --> src/algorithms.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn sidewinder(some_grid: &grid::Grid) -> grid::Grid {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `neighbor_cells` is never used
[INFO] [stdout]   --> src/cell.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn neighbor_cells(coords: (i32, i32)) -> collections::HashMap<Direction, (i32, i32)> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `coords`, `add_neighbor`, `neighbor_direction`, and `neighbors` are never used
[INFO] [stdout]    --> src/cell.rs:68:12
[INFO] [stdout]     |
[INFO] [stdout]  55 | impl Cell {
[INFO] [stdout]     | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  68 |     pub fn coords(&self) -> (i32, i32) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  89 |     pub fn add_neighbor(&mut self, other: (i32, i32)) {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 |     pub fn neighbor_direction(&self, neighbor: (i32, i32)) -> Option<Direction> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 131 |     pub fn neighbors(&self) -> Vec<&(i32, i32)> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_grid` is never used
[INFO] [stdout]   --> src/distances.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl DistanceMap {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub fn from_grid(start: (i32, i32), grid: &grid::Grid) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `from_grid` is never used
[INFO] [stdout]  --> src/graph.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn from_grid(some_grid: grid::Grid) -> UnGraph<(i32, i32), ()> {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `base_from_coords` is never used
[INFO] [stdout]   --> src/graph.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn base_from_coords(rows: i32, columns: i32) -> UnGraph<(i32, i32), ()> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_png` is never used
[INFO] [stdout]   --> src/graph.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn to_png(
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Neighbors` is never constructed
[INFO] [stdout]  --> src/grid.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Neighbors {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_neighbor_coords` is never used
[INFO] [stdout]   --> src/grid.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn get_neighbor_coords(current: (i32, i32)) -> Neighbors {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Grid` is never constructed
[INFO] [stdout]   --> src/grid.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct Grid {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/grid.rs:30:12
[INFO] [stdout]     |
[INFO] [stdout]  29 | impl Grid {
[INFO] [stdout]     | --------- associated items in this implementation
[INFO] [stdout]  30 |     pub fn new(rows: i32, columns: i32) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  40 |     pub fn from_cells(cells: Vec<Vec<cell::Cell>>) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  47 |     pub fn iter(&self) -> IterGrid {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  51 |     pub fn prepare_grid(&mut self) -> &mut Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  64 |     pub fn configure_cells(&mut self) -> &mut Self {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  87 |     pub fn get_item(&self, row_col: (i32, i32)) -> Option<&cell::Cell> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  97 |     pub fn replace_cell(&mut self, cll: cell::Cell) -> Result<(), &str> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |     pub fn size(&self) -> i32 {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |     pub fn random_cell(&self) -> &cell::Cell {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 120 |     pub fn random_cell_cloned(&self) -> cell::Cell {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 126 |     pub fn random_cell_mut(&mut self) -> &mut cell::Cell {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 133 |     pub fn each_row(&self) -> std::slice::Iter<Vec<cell::Cell>> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 137 |     pub fn to_png(&self, cell_size: i32, filename: &str) -> Result<(), String> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `IterGrid` is never constructed
[INFO] [stdout]    --> src/grid.rs:185:12
[INFO] [stdout]     |
[INFO] [stdout] 185 | pub struct IterGrid<'a> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/grid.rs:192:8
[INFO] [stdout]     |
[INFO] [stdout] 191 | impl<'a> IterGrid<'a> {
[INFO] [stdout]     | --------------------- associated function in this implementation
[INFO] [stdout] 192 |     fn new(grid: &'a Grid) -> IterGrid<'a> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `from_cells` and `size` are never used
[INFO] [stdout]    --> src/hash_grid.rs:49:12
[INFO] [stdout]     |
[INFO] [stdout]  33 | impl HashGrid {
[INFO] [stdout]     | ------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  49 |     pub fn from_cells(cells: Vec<Vec<cell::Cell>>) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 126 |     pub fn size(&self) -> i32 {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/grid.rs:47:17
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn iter(&self) -> IterGrid {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn iter(&self) -> IterGrid<'_> {
[INFO] [stdout]    |                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/grid.rs:133:21
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pub fn each_row(&self) -> std::slice::Iter<Vec<cell::Cell>> {
[INFO] [stdout]     |                     ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pub fn each_row(&self) -> std::slice::Iter<'_, Vec<cell::Cell>> {
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `binary_tree_cell` is never used
[INFO] [stdout]  --> src/algorithms.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn binary_tree_cell(some_cell: &mut cell::Cell) -> &mut cell::Cell {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `binary_tree` is never used
[INFO] [stdout]   --> src/algorithms.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn binary_tree(some_grid: &grid::Grid) -> grid::Grid {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sidewinder` is never used
[INFO] [stdout]   --> src/algorithms.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn sidewinder(some_grid: &grid::Grid) -> grid::Grid {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `neighbor_cells` is never used
[INFO] [stdout]   --> src/cell.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub fn neighbor_cells(coords: (i32, i32)) -> collections::HashMap<Direction, (i32, i32)> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_neighbor` is never used
[INFO] [stdout]   --> src/cell.rs:89:12
[INFO] [stdout]    |
[INFO] [stdout] 55 | impl Cell {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 89 |     pub fn add_neighbor(&mut self, other: (i32, i32)) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_grid` is never used
[INFO] [stdout]   --> src/distances.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl DistanceMap {
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 41 |     pub fn from_grid(start: (i32, i32), grid: &grid::Grid) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `base_from_coords` is never used
[INFO] [stdout]   --> src/graph.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn base_from_coords(rows: i32, columns: i32) -> UnGraph<(i32, i32), ()> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_png` is never used
[INFO] [stdout]   --> src/graph.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn to_png(
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/grid.rs:40:12
[INFO] [stdout]     |
[INFO] [stdout]  29 | impl Grid {
[INFO] [stdout]     | --------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  40 |     pub fn from_cells(cells: Vec<Vec<cell::Cell>>) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 110 |     pub fn size(&self) -> i32 {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 114 |     pub fn random_cell(&self) -> &cell::Cell {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 120 |     pub fn random_cell_cloned(&self) -> cell::Cell {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 126 |     pub fn random_cell_mut(&mut self) -> &mut cell::Cell {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 133 |     pub fn each_row(&self) -> std::slice::Iter<Vec<cell::Cell>> {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 137 |     pub fn to_png(&self, cell_size: i32, filename: &str) -> Result<(), String> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `from_cells` and `size` are never used
[INFO] [stdout]    --> src/hash_grid.rs:49:12
[INFO] [stdout]     |
[INFO] [stdout]  33 | impl HashGrid {
[INFO] [stdout]     | ------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  49 |     pub fn from_cells(cells: Vec<Vec<cell::Cell>>) -> Self {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 126 |     pub fn size(&self) -> i32 {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/graph.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |         new_grid.replace_cell(c1);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 88 |         let _ = new_grid.replace_cell(c1);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/graph.rs:91:9
[INFO] [stdout]    |
[INFO] [stdout] 91 |         new_grid.replace_cell(c2);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 91 |         let _ = new_grid.replace_cell(c2);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/graph.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |         new_grid.replace_cell(c3);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 94 |         let _ = new_grid.replace_cell(c3);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/grid.rs:47:17
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn iter(&self) -> IterGrid {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn iter(&self) -> IterGrid<'_> {
[INFO] [stdout]    |                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/grid.rs:133:21
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pub fn each_row(&self) -> std::slice::Iter<Vec<cell::Cell>> {
[INFO] [stdout]     |                     ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pub fn each_row(&self) -> std::slice::Iter<'_, Vec<cell::Cell>> {
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.66s
[INFO] running `Command { std: "docker" "inspect" "f68c9fdd4a33d04e519d28ccf9a6f1bc16c458ff3972a7e96af19ed5feed4360", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f68c9fdd4a33d04e519d28ccf9a6f1bc16c458ff3972a7e96af19ed5feed4360", kill_on_drop: false }`
[INFO] [stdout] f68c9fdd4a33d04e519d28ccf9a6f1bc16c458ff3972a7e96af19ed5feed4360
