[INFO] cloning repository https://github.com/RichLinnell/SudokuSolver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RichLinnell/SudokuSolver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRichLinnell%2FSudokuSolver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRichLinnell%2FSudokuSolver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c0764623250a0dc051f07113df78171bb7a8db91
[INFO] checking RichLinnell/SudokuSolver against master#2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48 for pr-142723
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRichLinnell%2FSudokuSolver" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RichLinnell/SudokuSolver on toolchain 2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/RichLinnell/SudokuSolver
[INFO] finished tweaking git repo https://github.com/RichLinnell/SudokuSolver
[INFO] tweaked toml for git repo https://github.com/RichLinnell/SudokuSolver written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/RichLinnell/SudokuSolver 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" "+2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] 2feac386eef7eecb7611ce53ef6edc8e11e36b925c9dee77d5cdfcaf975c8c40
[INFO] running `Command { std: "docker" "start" "-a" "2feac386eef7eecb7611ce53ef6edc8e11e36b925c9dee77d5cdfcaf975c8c40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2feac386eef7eecb7611ce53ef6edc8e11e36b925c9dee77d5cdfcaf975c8c40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2feac386eef7eecb7611ce53ef6edc8e11e36b925c9dee77d5cdfcaf975c8c40", kill_on_drop: false }`
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[INFO] [stdout] e41bb00bbded7ff09b5458fafdcc95e91d4b7ac9a4dddc474dee582b51d0a3f9
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[INFO] [stdout] warning: unused import: `default`
[INFO] [stdout]  --> src/solver/solver.rs:2:44
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{collections::{HashMap, HashSet}, default, sync::{Arc, Mutex}};
[INFO] [stdout]   |                                            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Cell_Ref` should have an upper camel case name
[INFO] [stdout]  --> src/solver/solver.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Cell_Ref{
[INFO] [stdout]   |            ^^^^^^^^ help: convert the identifier to upper camel case: `CellRef`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Value_To_Cell_Refs` should have an upper camel case name
[INFO] [stdout]   --> src/solver/solver.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Value_To_Cell_Refs{
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `ValueToCellRefs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `while` condition
[INFO] [stdout]   --> src/solver/solver.rs:23:15
[INFO] [stdout]    |
[INFO] [stdout] 23 |         while (value_changed){
[INFO] [stdout]    |               ^             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 23 -         while (value_changed){
[INFO] [stdout] 23 +         while value_changed {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/solver/solver.rs:92:20
[INFO] [stdout]    |
[INFO] [stdout] 92 |                 if (overlap.len() == 1) {
[INFO] [stdout]    |                    ^                  ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 92 -                 if (overlap.len() == 1) {
[INFO] [stdout] 92 +                 if overlap.len() == 1 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/solver/solver.rs:135:20
[INFO] [stdout]     |
[INFO] [stdout] 135 |                 if (overlap.len() == 1) {
[INFO] [stdout]     |                    ^                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 135 -                 if (overlap.len() == 1) {
[INFO] [stdout] 135 +                 if overlap.len() == 1 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/solver/solver.rs:184:28
[INFO] [stdout]     |
[INFO] [stdout] 184 |                         if (overlap.len() == 1) {
[INFO] [stdout]     |                            ^                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 184 -                         if (overlap.len() == 1) {
[INFO] [stdout] 184 +                         if overlap.len() == 1 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `thread::sleep`
[INFO] [stdout]  --> src/main.rs:4:19
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{thread, thread::sleep, time::Duration};
[INFO] [stdout]   |                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `solver::Solver`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use solver::Solver;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `default`
[INFO] [stdout]  --> src/solver/solver.rs:2:44
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{collections::{HashMap, HashSet}, default, sync::{Arc, Mutex}};
[INFO] [stdout]   |                                            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Cell_Ref` should have an upper camel case name
[INFO] [stdout]  --> src/solver/solver.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Cell_Ref{
[INFO] [stdout]   |            ^^^^^^^^ help: convert the identifier to upper camel case: `CellRef`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Value_To_Cell_Refs` should have an upper camel case name
[INFO] [stdout]   --> src/solver/solver.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Value_To_Cell_Refs{
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `ValueToCellRefs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `while` condition
[INFO] [stdout]   --> src/solver/solver.rs:23:15
[INFO] [stdout]    |
[INFO] [stdout] 23 |         while (value_changed){
[INFO] [stdout]    |               ^             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 23 -         while (value_changed){
[INFO] [stdout] 23 +         while value_changed {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/solver/solver.rs:92:20
[INFO] [stdout]    |
[INFO] [stdout] 92 |                 if (overlap.len() == 1) {
[INFO] [stdout]    |                    ^                  ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 92 -                 if (overlap.len() == 1) {
[INFO] [stdout] 92 +                 if overlap.len() == 1 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/solver/solver.rs:135:20
[INFO] [stdout]     |
[INFO] [stdout] 135 |                 if (overlap.len() == 1) {
[INFO] [stdout]     |                    ^                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 135 -                 if (overlap.len() == 1) {
[INFO] [stdout] 135 +                 if overlap.len() == 1 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/solver/solver.rs:184:28
[INFO] [stdout]     |
[INFO] [stdout] 184 |                         if (overlap.len() == 1) {
[INFO] [stdout]     |                            ^                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 184 -                         if (overlap.len() == 1) {
[INFO] [stdout] 184 +                         if overlap.len() == 1 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `thread::sleep`
[INFO] [stdout]  --> src/main.rs:4:19
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{thread, thread::sleep, time::Duration};
[INFO] [stdout]   |                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `solver::Solver`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use solver::Solver;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `thread_grid`
[INFO] [stdout]    --> src/solver/solver.rs:195:57
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn reduce_possible_values_for_mutual_pairs_in_block(thread_grid: &Arc<Mutex<Grid>>, value_changed: &mut bool){
[INFO] [stdout]     |                                                         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_thread_grid`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value_changed`
[INFO] [stdout]    --> src/solver/solver.rs:195:89
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn reduce_possible_values_for_mutual_pairs_in_block(thread_grid: &Arc<Mutex<Grid>>, value_changed: &mut bool){
[INFO] [stdout]     |                                                                                         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_value_changed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `thread_grid`
[INFO] [stdout]    --> src/solver/solver.rs:215:55
[INFO] [stdout]     |
[INFO] [stdout] 215 |     fn reduce_possible_values_for_mutual_pairs_in_col(thread_grid: &Arc<Mutex<Grid>>, value_changed: &mut bool){
[INFO] [stdout]     |                                                       ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_thread_grid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value_changed`
[INFO] [stdout]    --> src/solver/solver.rs:215:87
[INFO] [stdout]     |
[INFO] [stdout] 215 |     fn reduce_possible_values_for_mutual_pairs_in_col(thread_grid: &Arc<Mutex<Grid>>, value_changed: &mut bool){
[INFO] [stdout]     |                                                                                       ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_value_changed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vals_to_cells`
[INFO] [stdout]    --> src/solver/solver.rs:220:17
[INFO] [stdout]     |
[INFO] [stdout] 220 |         let mut vals_to_cells: HashMap<i32, Cell_Ref> = HashMap::new();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_vals_to_cells`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cr`
[INFO] [stdout]    --> src/solver/solver.rs:222:13
[INFO] [stdout]     |
[INFO] [stdout] 222 |         for cr in cells
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_cr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `thread_grid`
[INFO] [stdout]    --> src/solver/solver.rs:219:67
[INFO] [stdout]     |
[INFO] [stdout] 219 |     fn reduce_possible_values_for_mutual_pairs_in_a_nine_cell_set(thread_grid: &Arc<Mutex<Grid>>, cells: Vec<Cell_Ref>) -> bool {
[INFO] [stdout]     |                                                                   ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_thread_grid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/solver/solver.rs:220:13
[INFO] [stdout]     |
[INFO] [stdout] 220 |         let mut vals_to_cells: HashMap<i32, Cell_Ref> = HashMap::new();
[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 variable: `cc`
[INFO] [stdout]   --> src/main.rs:64:25
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn new(grid:  Grid, cc: &eframe::CreationContext<'_>) -> Self {
[INFO] [stdout]    |                         ^^ help: if this is intentional, prefix it with an underscore: `_cc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `frame`
[INFO] [stdout]   --> src/main.rs:74:47
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn update(&mut self, ctx: &egui::Context, frame: &mut eframe::Frame) {
[INFO] [stdout]    |                                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_frame`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_cell` is never used
[INFO] [stdout]   --> src/grid/grid.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl<'a> Grid {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub fn add_cell(&mut self, cell: Cell) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `set_test_data_simple` is never used
[INFO] [stdout]  --> src/testdata/testdata.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl TestData {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 6 |     pub fn set_test_data_simple(grid: &mut Grid) {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `x` and `y` are never read
[INFO] [stdout]  --> src/solver/solver.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Cell_Ref{
[INFO] [stdout]   |            -------- fields in this struct
[INFO] [stdout] 8 |     x: i32,
[INFO] [stdout]   |     ^
[INFO] [stdout] 9 |     y: i32,
[INFO] [stdout]   |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `value` and `cell_refs` are never read
[INFO] [stdout]   --> src/solver/solver.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Value_To_Cell_Refs{
[INFO] [stdout]    |            ------------------ fields in this struct
[INFO] [stdout] 14 |     value: i32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 15 |     cell_refs: Vec<Cell_Ref>
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `reduce_possible_values_for_mutual_pairs_in_block`, `reduce_possible_values_for_mutual_pairs_in_row`, `reduce_possible_values_for_mutual_pairs_in_col`, and `reduce_possible_values_for_mutual_pairs_in_a_nine_cell_set` are never used
[INFO] [stdout]    --> src/solver/solver.rs:195:8
[INFO] [stdout]     |
[INFO] [stdout] 19  | impl Solver {
[INFO] [stdout]     | ----------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 195 |     fn reduce_possible_values_for_mutual_pairs_in_block(thread_grid: &Arc<Mutex<Grid>>, value_changed: &mut bool){
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 199 |     fn reduce_possible_values_for_mutual_pairs_in_row(thread_grid: &Arc<Mutex<Grid>>, value_changed: &mut bool){
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 215 |     fn reduce_possible_values_for_mutual_pairs_in_col(thread_grid: &Arc<Mutex<Grid>>, value_changed: &mut bool){
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 219 |     fn reduce_possible_values_for_mutual_pairs_in_a_nine_cell_set(thread_grid: &Arc<Mutex<Grid>>, cells: Vec<Cell_Ref>) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:97:25
[INFO] [stdout]    |
[INFO] [stdout] 97 |                         (*view_grid.lock().unwrap()).set_cell(self.edit_values.col, self.edit_values.row, self.edit_values.value);
[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)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 97 |                         let _ = (*view_grid.lock().unwrap()).set_cell(self.edit_values.col, self.edit_values.row, self.edit_values.value);
[INFO] [stdout]    |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> src/testdata/testdata.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |         grid.set_cell(0, 0, 3);
[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] 7 |         let _ = grid.set_cell(0, 0, 3);
[INFO] [stdout]   |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> src/testdata/testdata.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |         grid.set_cell(5, 0, 2);
[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] 8 |         let _ = grid.set_cell(5, 0, 2);
[INFO] [stdout]   |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> src/testdata/testdata.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |         grid.set_cell(6, 0, 9);
[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] 9 |         let _ = grid.set_cell(6, 0, 9);
[INFO] [stdout]   |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         grid.set_cell(7, 0, 6);
[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] 10 |         let _ = grid.set_cell(7, 0, 6);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         grid.set_cell(0, 1, 1);
[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] 11 |         let _ = grid.set_cell(0, 1, 1);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         grid.set_cell(1, 1, 4);
[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] 12 |         let _ = grid.set_cell(1, 1, 4);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         grid.set_cell(6, 1, 2);
[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] 13 |         let _ = grid.set_cell(6, 1, 2);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |         grid.set_cell(8, 1, 8);
[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] 14 |         let _ = grid.set_cell(8, 1, 8);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |         grid.set_cell(2, 2, 2);
[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] 15 |         let _ = grid.set_cell(2, 2, 2);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |         grid.set_cell(3, 2, 9);
[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] 16 |         let _ = grid.set_cell(3, 2, 9);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         grid.set_cell(4, 2, 7);
[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] 17 |         let _ = grid.set_cell(4, 2, 7);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |         grid.set_cell(5, 2, 1);
[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] 18 |         let _ = grid.set_cell(5, 2, 1);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         grid.set_cell(2, 3, 1);
[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] 19 |         let _ = grid.set_cell(2, 3, 1);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |         grid.set_cell(3, 3, 4);
[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] 20 |         let _ = grid.set_cell(3, 3, 4);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |         grid.set_cell(7, 3, 2);
[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] 21 |         let _ = grid.set_cell(7, 3, 2);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |         grid.set_cell(8, 3, 6);
[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] 22 |         let _ = grid.set_cell(8, 3, 6);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |         grid.set_cell(0, 4, 2);
[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] 23 |         let _ = grid.set_cell(0, 4, 2);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |         grid.set_cell(2, 4, 4);
[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] 24 |         let _ = grid.set_cell(2, 4, 4);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         grid.set_cell(4, 4, 8);
[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] 25 |         let _ = grid.set_cell(4, 4, 8);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |         grid.set_cell(5, 4, 5);
[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] 26 |         let _ = grid.set_cell(5, 4, 5);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         grid.set_cell(7, 4, 9);
[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] 27 |         let _ = grid.set_cell(7, 4, 9);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |         grid.set_cell(0, 5, 7);
[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] 28 |         let _ = grid.set_cell(0, 5, 7);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |         grid.set_cell(2, 5, 8);
[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] 29 |         let _ = grid.set_cell(2, 5, 8);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         grid.set_cell(4, 5, 1);
[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] 30 |         let _ = grid.set_cell(4, 5, 1);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         grid.set_cell(8, 5, 3);
[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] 31 |         let _ = grid.set_cell(8, 5, 3);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         grid.set_cell(0, 6, 4);
[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] 32 |         let _ = grid.set_cell(0, 6, 4);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         grid.set_cell(1, 6, 5);
[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] 33 |         let _ = grid.set_cell(1, 6, 5);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |         grid.set_cell(2, 6, 3);
[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] 34 |         let _ = grid.set_cell(2, 6, 3);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         grid.set_cell(7, 6, 1);
[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] 35 |         let _ = grid.set_cell(7, 6, 1);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         grid.set_cell(1, 7, 1);
[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] 36 |         let _ = grid.set_cell(1, 7, 1);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |         grid.set_cell(3, 7, 7);
[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] 37 |         let _ = grid.set_cell(3, 7, 7);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |         grid.set_cell(4, 7, 5);
[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] 38 |         let _ = grid.set_cell(4, 7, 5);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |         grid.set_cell(5, 7, 4);
[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] 39 |         let _ = grid.set_cell(5, 7, 4);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         grid.set_cell(2, 8, 7);
[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] 40 |         let _ = grid.set_cell(2, 8, 7);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |         grid.set_cell(3, 8, 1);
[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] 41 |         let _ = grid.set_cell(3, 8, 1);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |         grid.set_cell(5, 8, 9);
[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] 42 |         let _ = grid.set_cell(5, 8, 9);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         grid.set_cell(6, 8, 6);
[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] 43 |         let _ = grid.set_cell(6, 8, 6);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         grid.set_cell(8, 8, 4);
[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] 44 |         let _ = grid.set_cell(8, 8, 4);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |         grid.set_cell(2, 0, 2);
[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] 48 |         let _ = grid.set_cell(2, 0, 2);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |         grid.set_cell(3, 0, 5);
[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] 49 |         let _ = grid.set_cell(3, 0, 5);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |         grid.set_cell(5, 0, 3);
[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] 50 |         let _ = grid.set_cell(5, 0, 3);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |         grid.set_cell(2, 1, 8);
[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] 51 |         let _ = grid.set_cell(2, 1, 8);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |         grid.set_cell(4, 1, 6);
[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] 52 |         let _ = grid.set_cell(4, 1, 6);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         grid.set_cell(4, 2, 2);
[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] 53 |         let _ = grid.set_cell(4, 2, 2);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |         grid.set_cell(7, 2, 5);
[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] 54 |         let _ = grid.set_cell(7, 2, 5);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |         grid.set_cell(8, 2, 9);
[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] 55 |         let _ = grid.set_cell(8, 2, 9);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |         grid.set_cell(3, 3, 6);
[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] 56 |         let _ = grid.set_cell(3, 3, 6);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |         grid.set_cell(4, 3, 8);
[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] 57 |         let _ = grid.set_cell(4, 3, 8);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |         grid.set_cell(5, 3, 9);
[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] 58 |         let _ = grid.set_cell(5, 3, 9);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         grid.set_cell(6, 3, 3);
[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] 59 |         let _ = grid.set_cell(6, 3, 3);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |         grid.set_cell(8, 3, 5);
[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] 60 |         let _ = grid.set_cell(8, 3, 5);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |         grid.set_cell(7, 4, 8);
[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] 61 |         let _ = grid.set_cell(7, 4, 8);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |         grid.set_cell(1, 5, 2);
[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] 62 |         let _ = grid.set_cell(1, 5, 2);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |         grid.set_cell(5, 5, 5);
[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] 63 |         let _ = grid.set_cell(5, 5, 5);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         grid.set_cell(8, 5, 6);
[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] 64 |         let _ = grid.set_cell(8, 5, 6);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |         grid.set_cell(2, 6, 7);
[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] 65 |         let _ = grid.set_cell(2, 6, 7);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         grid.set_cell(6, 6, 2);
[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] 66 |         let _ = grid.set_cell(6, 6, 2);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         grid.set_cell(8, 6, 4);
[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] 67 |         let _ = grid.set_cell(8, 6, 4);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |         grid.set_cell(3, 7, 8);
[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] 68 |         let _ = grid.set_cell(3, 7, 8);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |         grid.set_cell(5, 7, 4);
[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] 69 |         let _ = grid.set_cell(5, 7, 4);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |         grid.set_cell(2, 8, 9);
[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] 70 |         let _ = grid.set_cell(2, 8, 9);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 |         grid.set_cell(3, 8, 7);
[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] 71 |         let _ = grid.set_cell(3, 8, 7);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |         grid.set_cell(7, 8, 1);
[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] 72 |         let _ = grid.set_cell(7, 8, 1);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/solver/solver.rs:51:21
[INFO] [stdout]    |
[INFO] [stdout] 51 |                     (*in_grid).set_cell(x, y, possibilities[0]);
[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] 51 |                     let _ = (*in_grid).set_cell(x, y, possibilities[0]);
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/solver/solver.rs:94:21
[INFO] [stdout]    |
[INFO] [stdout] 94 |                     (*in_grid).set_cell(x, y, overlap[0]);
[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 _ = (*in_grid).set_cell(x, y, overlap[0]);
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/solver/solver.rs:137:21
[INFO] [stdout]     |
[INFO] [stdout] 137 |                     (*in_grid).set_cell(x, y, overlap[0]);
[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] 137 |                     let _ = (*in_grid).set_cell(x, y, overlap[0]);
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/solver/solver.rs:186:25
[INFO] [stdout]     |
[INFO] [stdout] 186 |                         (*in_grid).set_cell(x*3+x1, y*3+y1, overlap[0]);
[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] 186 |                         let _ = (*in_grid).set_cell(x*3+x1, y*3+y1, overlap[0]);
[INFO] [stdout]     |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `thread_grid`
[INFO] [stdout]    --> src/solver/solver.rs:195:57
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn reduce_possible_values_for_mutual_pairs_in_block(thread_grid: &Arc<Mutex<Grid>>, value_changed: &mut bool){
[INFO] [stdout]     |                                                         ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_thread_grid`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value_changed`
[INFO] [stdout]    --> src/solver/solver.rs:195:89
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn reduce_possible_values_for_mutual_pairs_in_block(thread_grid: &Arc<Mutex<Grid>>, value_changed: &mut bool){
[INFO] [stdout]     |                                                                                         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_value_changed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `thread_grid`
[INFO] [stdout]    --> src/solver/solver.rs:215:55
[INFO] [stdout]     |
[INFO] [stdout] 215 |     fn reduce_possible_values_for_mutual_pairs_in_col(thread_grid: &Arc<Mutex<Grid>>, value_changed: &mut bool){
[INFO] [stdout]     |                                                       ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_thread_grid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value_changed`
[INFO] [stdout]    --> src/solver/solver.rs:215:87
[INFO] [stdout]     |
[INFO] [stdout] 215 |     fn reduce_possible_values_for_mutual_pairs_in_col(thread_grid: &Arc<Mutex<Grid>>, value_changed: &mut bool){
[INFO] [stdout]     |                                                                                       ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_value_changed`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vals_to_cells`
[INFO] [stdout]    --> src/solver/solver.rs:220:17
[INFO] [stdout]     |
[INFO] [stdout] 220 |         let mut vals_to_cells: HashMap<i32, Cell_Ref> = HashMap::new();
[INFO] [stdout]     |                 ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_vals_to_cells`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cr`
[INFO] [stdout]    --> src/solver/solver.rs:222:13
[INFO] [stdout]     |
[INFO] [stdout] 222 |         for cr in cells
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_cr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `thread_grid`
[INFO] [stdout]    --> src/solver/solver.rs:219:67
[INFO] [stdout]     |
[INFO] [stdout] 219 |     fn reduce_possible_values_for_mutual_pairs_in_a_nine_cell_set(thread_grid: &Arc<Mutex<Grid>>, cells: Vec<Cell_Ref>) -> bool {
[INFO] [stdout]     |                                                                   ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_thread_grid`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/solver/solver.rs:220:13
[INFO] [stdout]     |
[INFO] [stdout] 220 |         let mut vals_to_cells: HashMap<i32, Cell_Ref> = HashMap::new();
[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 variable: `cc`
[INFO] [stdout]   --> src/main.rs:64:25
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn new(grid:  Grid, cc: &eframe::CreationContext<'_>) -> Self {
[INFO] [stdout]    |                         ^^ help: if this is intentional, prefix it with an underscore: `_cc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `frame`
[INFO] [stdout]   --> src/main.rs:74:47
[INFO] [stdout]    |
[INFO] [stdout] 74 |     fn update(&mut self, ctx: &egui::Context, frame: &mut eframe::Frame) {
[INFO] [stdout]    |                                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_frame`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `add_cell` is never used
[INFO] [stdout]   --> src/grid/grid.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl<'a> Grid {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub fn add_cell(&mut self, cell: Cell) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `set_test_data_simple` is never used
[INFO] [stdout]  --> src/testdata/testdata.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | impl TestData {
[INFO] [stdout]   | ------------- associated function in this implementation
[INFO] [stdout] 6 |     pub fn set_test_data_simple(grid: &mut Grid) {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `x` and `y` are never read
[INFO] [stdout]  --> src/solver/solver.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Cell_Ref{
[INFO] [stdout]   |            -------- fields in this struct
[INFO] [stdout] 8 |     x: i32,
[INFO] [stdout]   |     ^
[INFO] [stdout] 9 |     y: i32,
[INFO] [stdout]   |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `value` and `cell_refs` are never read
[INFO] [stdout]   --> src/solver/solver.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Value_To_Cell_Refs{
[INFO] [stdout]    |            ------------------ fields in this struct
[INFO] [stdout] 14 |     value: i32,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 15 |     cell_refs: Vec<Cell_Ref>
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `reduce_possible_values_for_mutual_pairs_in_block`, `reduce_possible_values_for_mutual_pairs_in_row`, `reduce_possible_values_for_mutual_pairs_in_col`, and `reduce_possible_values_for_mutual_pairs_in_a_nine_cell_set` are never used
[INFO] [stdout]    --> src/solver/solver.rs:195:8
[INFO] [stdout]     |
[INFO] [stdout] 19  | impl Solver {
[INFO] [stdout]     | ----------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 195 |     fn reduce_possible_values_for_mutual_pairs_in_block(thread_grid: &Arc<Mutex<Grid>>, value_changed: &mut bool){
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 199 |     fn reduce_possible_values_for_mutual_pairs_in_row(thread_grid: &Arc<Mutex<Grid>>, value_changed: &mut bool){
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 215 |     fn reduce_possible_values_for_mutual_pairs_in_col(thread_grid: &Arc<Mutex<Grid>>, value_changed: &mut bool){
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 219 |     fn reduce_possible_values_for_mutual_pairs_in_a_nine_cell_set(thread_grid: &Arc<Mutex<Grid>>, cells: Vec<Cell_Ref>) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:97:25
[INFO] [stdout]    |
[INFO] [stdout] 97 |                         (*view_grid.lock().unwrap()).set_cell(self.edit_values.col, self.edit_values.row, self.edit_values.value);
[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)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 97 |                         let _ = (*view_grid.lock().unwrap()).set_cell(self.edit_values.col, self.edit_values.row, self.edit_values.value);
[INFO] [stdout]    |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> src/testdata/testdata.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |         grid.set_cell(0, 0, 3);
[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] 7 |         let _ = grid.set_cell(0, 0, 3);
[INFO] [stdout]   |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> src/testdata/testdata.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |         grid.set_cell(5, 0, 2);
[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] 8 |         let _ = grid.set_cell(5, 0, 2);
[INFO] [stdout]   |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> src/testdata/testdata.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |         grid.set_cell(6, 0, 9);
[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] 9 |         let _ = grid.set_cell(6, 0, 9);
[INFO] [stdout]   |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         grid.set_cell(7, 0, 6);
[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] 10 |         let _ = grid.set_cell(7, 0, 6);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         grid.set_cell(0, 1, 1);
[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] 11 |         let _ = grid.set_cell(0, 1, 1);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         grid.set_cell(1, 1, 4);
[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] 12 |         let _ = grid.set_cell(1, 1, 4);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         grid.set_cell(6, 1, 2);
[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] 13 |         let _ = grid.set_cell(6, 1, 2);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |         grid.set_cell(8, 1, 8);
[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] 14 |         let _ = grid.set_cell(8, 1, 8);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |         grid.set_cell(2, 2, 2);
[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] 15 |         let _ = grid.set_cell(2, 2, 2);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |         grid.set_cell(3, 2, 9);
[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] 16 |         let _ = grid.set_cell(3, 2, 9);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         grid.set_cell(4, 2, 7);
[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] 17 |         let _ = grid.set_cell(4, 2, 7);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |         grid.set_cell(5, 2, 1);
[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] 18 |         let _ = grid.set_cell(5, 2, 1);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |         grid.set_cell(2, 3, 1);
[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] 19 |         let _ = grid.set_cell(2, 3, 1);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |         grid.set_cell(3, 3, 4);
[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] 20 |         let _ = grid.set_cell(3, 3, 4);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |         grid.set_cell(7, 3, 2);
[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] 21 |         let _ = grid.set_cell(7, 3, 2);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |         grid.set_cell(8, 3, 6);
[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] 22 |         let _ = grid.set_cell(8, 3, 6);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |         grid.set_cell(0, 4, 2);
[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] 23 |         let _ = grid.set_cell(0, 4, 2);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |         grid.set_cell(2, 4, 4);
[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] 24 |         let _ = grid.set_cell(2, 4, 4);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         grid.set_cell(4, 4, 8);
[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] 25 |         let _ = grid.set_cell(4, 4, 8);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |         grid.set_cell(5, 4, 5);
[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] 26 |         let _ = grid.set_cell(5, 4, 5);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         grid.set_cell(7, 4, 9);
[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] 27 |         let _ = grid.set_cell(7, 4, 9);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |         grid.set_cell(0, 5, 7);
[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] 28 |         let _ = grid.set_cell(0, 5, 7);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |         grid.set_cell(2, 5, 8);
[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] 29 |         let _ = grid.set_cell(2, 5, 8);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         grid.set_cell(4, 5, 1);
[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] 30 |         let _ = grid.set_cell(4, 5, 1);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         grid.set_cell(8, 5, 3);
[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] 31 |         let _ = grid.set_cell(8, 5, 3);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         grid.set_cell(0, 6, 4);
[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] 32 |         let _ = grid.set_cell(0, 6, 4);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         grid.set_cell(1, 6, 5);
[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] 33 |         let _ = grid.set_cell(1, 6, 5);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |         grid.set_cell(2, 6, 3);
[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] 34 |         let _ = grid.set_cell(2, 6, 3);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         grid.set_cell(7, 6, 1);
[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] 35 |         let _ = grid.set_cell(7, 6, 1);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         grid.set_cell(1, 7, 1);
[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] 36 |         let _ = grid.set_cell(1, 7, 1);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |         grid.set_cell(3, 7, 7);
[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] 37 |         let _ = grid.set_cell(3, 7, 7);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |         grid.set_cell(4, 7, 5);
[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] 38 |         let _ = grid.set_cell(4, 7, 5);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |         grid.set_cell(5, 7, 4);
[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] 39 |         let _ = grid.set_cell(5, 7, 4);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         grid.set_cell(2, 8, 7);
[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] 40 |         let _ = grid.set_cell(2, 8, 7);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |         grid.set_cell(3, 8, 1);
[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] 41 |         let _ = grid.set_cell(3, 8, 1);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |         grid.set_cell(5, 8, 9);
[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] 42 |         let _ = grid.set_cell(5, 8, 9);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         grid.set_cell(6, 8, 6);
[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] 43 |         let _ = grid.set_cell(6, 8, 6);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         grid.set_cell(8, 8, 4);
[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] 44 |         let _ = grid.set_cell(8, 8, 4);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |         grid.set_cell(2, 0, 2);
[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] 48 |         let _ = grid.set_cell(2, 0, 2);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |         grid.set_cell(3, 0, 5);
[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] 49 |         let _ = grid.set_cell(3, 0, 5);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |         grid.set_cell(5, 0, 3);
[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] 50 |         let _ = grid.set_cell(5, 0, 3);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:51:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |         grid.set_cell(2, 1, 8);
[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] 51 |         let _ = grid.set_cell(2, 1, 8);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |         grid.set_cell(4, 1, 6);
[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] 52 |         let _ = grid.set_cell(4, 1, 6);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         grid.set_cell(4, 2, 2);
[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] 53 |         let _ = grid.set_cell(4, 2, 2);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |         grid.set_cell(7, 2, 5);
[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] 54 |         let _ = grid.set_cell(7, 2, 5);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |         grid.set_cell(8, 2, 9);
[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] 55 |         let _ = grid.set_cell(8, 2, 9);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |         grid.set_cell(3, 3, 6);
[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] 56 |         let _ = grid.set_cell(3, 3, 6);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |         grid.set_cell(4, 3, 8);
[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] 57 |         let _ = grid.set_cell(4, 3, 8);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |         grid.set_cell(5, 3, 9);
[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] 58 |         let _ = grid.set_cell(5, 3, 9);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         grid.set_cell(6, 3, 3);
[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] 59 |         let _ = grid.set_cell(6, 3, 3);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |         grid.set_cell(8, 3, 5);
[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] 60 |         let _ = grid.set_cell(8, 3, 5);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |         grid.set_cell(7, 4, 8);
[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] 61 |         let _ = grid.set_cell(7, 4, 8);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |         grid.set_cell(1, 5, 2);
[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] 62 |         let _ = grid.set_cell(1, 5, 2);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |         grid.set_cell(5, 5, 5);
[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] 63 |         let _ = grid.set_cell(5, 5, 5);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         grid.set_cell(8, 5, 6);
[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] 64 |         let _ = grid.set_cell(8, 5, 6);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |         grid.set_cell(2, 6, 7);
[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] 65 |         let _ = grid.set_cell(2, 6, 7);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         grid.set_cell(6, 6, 2);
[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] 66 |         let _ = grid.set_cell(6, 6, 2);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 |         grid.set_cell(8, 6, 4);
[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] 67 |         let _ = grid.set_cell(8, 6, 4);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |         grid.set_cell(3, 7, 8);
[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] 68 |         let _ = grid.set_cell(3, 7, 8);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |         grid.set_cell(5, 7, 4);
[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] 69 |         let _ = grid.set_cell(5, 7, 4);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |         grid.set_cell(2, 8, 9);
[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] 70 |         let _ = grid.set_cell(2, 8, 9);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 |         grid.set_cell(3, 8, 7);
[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] 71 |         let _ = grid.set_cell(3, 8, 7);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/testdata/testdata.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |         grid.set_cell(7, 8, 1);
[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] 72 |         let _ = grid.set_cell(7, 8, 1);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/solver/solver.rs:51:21
[INFO] [stdout]    |
[INFO] [stdout] 51 |                     (*in_grid).set_cell(x, y, possibilities[0]);
[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] 51 |                     let _ = (*in_grid).set_cell(x, y, possibilities[0]);
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/solver/solver.rs:94:21
[INFO] [stdout]    |
[INFO] [stdout] 94 |                     (*in_grid).set_cell(x, y, overlap[0]);
[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 _ = (*in_grid).set_cell(x, y, overlap[0]);
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/solver/solver.rs:137:21
[INFO] [stdout]     |
[INFO] [stdout] 137 |                     (*in_grid).set_cell(x, y, overlap[0]);
[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] 137 |                     let _ = (*in_grid).set_cell(x, y, overlap[0]);
[INFO] [stdout]     |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/solver/solver.rs:186:25
[INFO] [stdout]     |
[INFO] [stdout] 186 |                         (*in_grid).set_cell(x*3+x1, y*3+y1, overlap[0]);
[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] 186 |                         let _ = (*in_grid).set_cell(x*3+x1, y*3+y1, overlap[0]);
[INFO] [stdout]     |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 39s
[INFO] running `Command { std: "docker" "inspect" "e41bb00bbded7ff09b5458fafdcc95e91d4b7ac9a4dddc474dee582b51d0a3f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e41bb00bbded7ff09b5458fafdcc95e91d4b7ac9a4dddc474dee582b51d0a3f9", kill_on_drop: false }`
[INFO] [stdout] e41bb00bbded7ff09b5458fafdcc95e91d4b7ac9a4dddc474dee582b51d0a3f9