[INFO] cloning repository https://github.com/danplubell/sudodu [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/danplubell/sudodu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanplubell%2Fsudodu", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanplubell%2Fsudodu'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6c00afa419c1d22c7b535e9710601cfe6279fec9 [INFO] checking danplubell/sudodu/6c00afa419c1d22c7b535e9710601cfe6279fec9 against master#717f5df2c308dfb4b7b8e6c002c11fe8269c4011 for pr-133274 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanplubell%2Fsudodu" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/danplubell/sudodu on toolchain 717f5df2c308dfb4b7b8e6c002c11fe8269c4011 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+717f5df2c308dfb4b7b8e6c002c11fe8269c4011" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/danplubell/sudodu [INFO] finished tweaking git repo https://github.com/danplubell/sudodu [INFO] tweaked toml for git repo https://github.com/danplubell/sudodu written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/danplubell/sudodu 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" "+717f5df2c308dfb4b7b8e6c002c11fe8269c4011" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+717f5df2c308dfb4b7b8e6c002c11fe8269c4011" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5472a18486e36f02c943269fe70d5f9dcebda5e5ba52d9a5d5563efb943c9d68 [INFO] running `Command { std: "docker" "start" "-a" "5472a18486e36f02c943269fe70d5f9dcebda5e5ba52d9a5d5563efb943c9d68", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5472a18486e36f02c943269fe70d5f9dcebda5e5ba52d9a5d5563efb943c9d68", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5472a18486e36f02c943269fe70d5f9dcebda5e5ba52d9a5d5563efb943c9d68", kill_on_drop: false }` [INFO] [stdout] 5472a18486e36f02c943269fe70d5f9dcebda5e5ba52d9a5d5563efb943c9d68 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+717f5df2c308dfb4b7b8e6c002c11fe8269c4011" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7e891d337cd7944b41636b7144043666a7a0f11670f0ad6a6d67df4a4ca80fa7 [INFO] running `Command { std: "docker" "start" "-a" "7e891d337cd7944b41636b7144043666a7a0f11670f0ad6a6d67df4a4ca80fa7", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.89 [INFO] [stderr] Compiling unicode-ident v1.0.13 [INFO] [stderr] Compiling serde v1.0.214 [INFO] [stderr] Checking memchr v2.7.4 [INFO] [stderr] Compiling thiserror v1.0.65 [INFO] [stderr] Checking itoa v1.0.11 [INFO] [stderr] Checking ryu v1.0.18 [INFO] [stderr] Checking csv-core v0.1.11 [INFO] [stderr] Compiling quote v1.0.37 [INFO] [stderr] Compiling syn v2.0.85 [INFO] [stderr] Checking csv v1.3.0 [INFO] [stderr] Compiling thiserror-impl v1.0.65 [INFO] [stderr] Checking sudodu v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `row` [INFO] [stdout] --> src/solvers/solve_sudoku_backtrack.rs:3:48 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn solve_sudoku_backtrack(grid: &Grid, mut row:usize, mut col:usize)->bool { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_row` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `col` [INFO] [stdout] --> src/solvers/solve_sudoku_backtrack.rs:3:63 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn solve_sudoku_backtrack(grid: &Grid, mut row:usize, mut col:usize)->bool { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_col` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/solvers/solve_sudoku_backtrack.rs:3:44 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn solve_sudoku_backtrack(grid: &Grid, mut row:usize, mut col:usize)->bool { [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/solvers/solve_sudoku_backtrack.rs:3:59 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn solve_sudoku_backtrack(grid: &Grid, mut row:usize, mut col:usize)->bool { [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple associated items are never used [INFO] [stdout] --> src/model/cells.rs:10:12 [INFO] [stdout] | [INFO] [stdout] 9 | impl Cells { [INFO] [stdout] | ---------- associated items in this implementation [INFO] [stdout] 10 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 13 | pub fn add_cell_by_value(&self, value: u8) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 16 | pub fn add_cell(&self, cell: Cell) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 19 | pub fn get_inner_value_at(&self, index: usize) -> u8 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 26 | pub fn set_inner_value_at(&self, index: usize, value: u8) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 31 | pub fn set_inner_at_row_col(&self, row: usize, col: usize, value: u8) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 35 | pub fn get_inner_at_row_col(&self, row: usize, col: usize) -> u8 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | pub fn get_at(&self, index: usize) -> Cell { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 42 | pub fn values(&self) -> Vec { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `get_value` and `replace_value` are never used [INFO] [stdout] --> src/model/cell.rs:14:12 [INFO] [stdout] | [INFO] [stdout] 8 | impl Cell { [INFO] [stdout] | --------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 14 | pub fn get_value(&self) -> u8 { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 17 | pub fn replace_value(&self, value: u8) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple associated items are never used [INFO] [stdout] --> src/model/columns.rs:13:12 [INFO] [stdout] | [INFO] [stdout] 12 | impl Columns { [INFO] [stdout] | ------------ associated items in this implementation [INFO] [stdout] 13 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 18 | pub fn add_to_column(&self, col: usize, cell: Cell) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 23 | pub fn get_column(&self, col: usize) -> Cells { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 26 | pub fn collect_columns(&self, cells: &Cells) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 35 | pub fn values(&self) -> Vec { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 38 | pub fn is_valid(&self) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 44 | pub fn is_safe(&self) -> bool { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple associated items are never used [INFO] [stdout] --> src/model/rows.rs:15:12 [INFO] [stdout] | [INFO] [stdout] 14 | impl Rows { [INFO] [stdout] | --------- associated items in this implementation [INFO] [stdout] 15 | pub fn new()->Self{ [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 19 | pub fn add_to_row(&self, row: usize, cell: Cell) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 26 | pub fn collect_rows(&self, cells: &Cells) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 36 | pub fn values(&self)->Vec{ [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 40 | pub fn get_row(&self, col:usize) -> Cells { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 43 | pub fn get_value_at_row_col(&self,row:usize, col:usize)->u8 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 46 | pub fn is_valid(&self)->bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 49 | pub fn is_safe(&self) -> bool { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `add_to_region`, `get_region`, `collect_regions`, `is_valid`, and `is_safe` are never used [INFO] [stdout] --> src/model/regions.rs:13:12 [INFO] [stdout] | [INFO] [stdout] 12 | impl Regions { [INFO] [stdout] | ------------ associated items in this implementation [INFO] [stdout] 13 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 18 | pub fn add_to_region(&self, col: usize, cell: Cell) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 23 | pub fn get_region(&self, region: usize) -> Cells { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 26 | pub fn collect_regions(&self, cells: &Cells) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 44 | pub fn is_valid(&self)->bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 47 | pub fn is_safe(&self) -> bool { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple associated items are never used [INFO] [stdout] --> src/model/grid.rs:15:12 [INFO] [stdout] | [INFO] [stdout] 14 | impl Grid { [INFO] [stdout] | --------- associated items in this implementation [INFO] [stdout] 15 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 23 | pub fn with_cells(&self, cells: &Cells) -> &Grid { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 29 | pub fn try_from(&mut self, value: &str) -> Result<(), ParsePuzzleError> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 45 | pub fn validate(&self) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 51 | pub fn check_is_safe(&self, row: usize, col: usize, num: u8) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 54 | pub fn is_safe(&self) -> bool { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 60 | pub fn get_value_at_row_col(&self, row:usize, col:usize) -> u8 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 63 | pub fn set_value_at_row_col(&self, row:usize, col:usize, value:u8) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 66 | pub fn raw_cells(&self) -> Cells { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 69 | pub fn find_unassigned_location(&self)-> Option<(usize,usize)>{ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `TooLong`, `TooShort`, and `HasAlpha` are never constructed [INFO] [stdout] --> src/model/grid.rs:86:5 [INFO] [stdout] | [INFO] [stdout] 84 | pub enum ParsePuzzleError { [INFO] [stdout] | ---------------- variants in this enum [INFO] [stdout] 85 | #[error("Value string is too long")] [INFO] [stdout] 86 | TooLong, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 87 | #[error("Value string is too short")] [INFO] [stdout] 88 | TooShort, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 89 | #[error("Value string contains alphabetic characters")] [INFO] [stdout] 90 | HasAlpha, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ParsePuzzleError` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `NotFound` and `Multiple` are never constructed [INFO] [stdout] --> src/model/validate_cells.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 10 | enum ErrorReason { [INFO] [stdout] | ----------- variants in this enum [INFO] [stdout] 11 | #[error("Number not found")] [INFO] [stdout] 12 | NotFound, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 13 | #[error("Multiple instances")] [INFO] [stdout] 14 | Multiple(String), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ErrorReason` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `validate_cells` is never used [INFO] [stdout] --> src/model/validate_cells.rs:23:8 [INFO] [stdout] | [INFO] [stdout] 23 | pub fn validate_cells(cells: &Cells) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `is_safe_placement` is never used [INFO] [stdout] --> src/model/is_safe.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | pub fn is_safe_placement(cells: Cells, row: usize, col: usize, value: u8) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `is_safe` is never used [INFO] [stdout] --> src/model/is_safe.rs:17:8 [INFO] [stdout] | [INFO] [stdout] 17 | pub fn is_safe(cells: &Cells) -> Result { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `N` is never used [INFO] [stdout] --> src/solvers/solve_sudoku_naive.rs:2:7 [INFO] [stdout] | [INFO] [stdout] 2 | const N: usize = 9; [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `solve_sudoku_naive` is never used [INFO] [stdout] --> src/solvers/solve_sudoku_naive.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | pub fn solve_sudoku_naive(grid: &Grid, mut row:usize, mut col:usize) -> bool{ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `N` is never used [INFO] [stdout] --> src/solvers/solve_sudoku_backtrack.rs:2:7 [INFO] [stdout] | [INFO] [stdout] 2 | const N:usize = 9; [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `solve_sudoku_backtrack` is never used [INFO] [stdout] --> src/solvers/solve_sudoku_backtrack.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn solve_sudoku_backtrack(grid: &Grid, mut row:usize, mut col:usize)->bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `row` [INFO] [stdout] --> src/solvers/solve_sudoku_backtrack.rs:3:48 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn solve_sudoku_backtrack(grid: &Grid, mut row:usize, mut col:usize)->bool { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_row` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `col` [INFO] [stdout] --> src/solvers/solve_sudoku_backtrack.rs:3:63 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn solve_sudoku_backtrack(grid: &Grid, mut row:usize, mut col:usize)->bool { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_col` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/solvers/solve_sudoku_backtrack.rs:3:44 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn solve_sudoku_backtrack(grid: &Grid, mut row:usize, mut col:usize)->bool { [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/solvers/solve_sudoku_backtrack.rs:3:59 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn solve_sudoku_backtrack(grid: &Grid, mut row:usize, mut col:usize)->bool { [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `NotFound` and `Multiple` are never constructed [INFO] [stdout] --> src/model/validate_cells.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 10 | enum ErrorReason { [INFO] [stdout] | ----------- variants in this enum [INFO] [stdout] 11 | #[error("Number not found")] [INFO] [stdout] 12 | NotFound, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 13 | #[error("Multiple instances")] [INFO] [stdout] 14 | Multiple(String), [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ErrorReason` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.19s [INFO] running `Command { std: "docker" "inspect" "7e891d337cd7944b41636b7144043666a7a0f11670f0ad6a6d67df4a4ca80fa7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7e891d337cd7944b41636b7144043666a7a0f11670f0ad6a6d67df4a4ca80fa7", kill_on_drop: false }` [INFO] [stdout] 7e891d337cd7944b41636b7144043666a7a0f11670f0ad6a6d67df4a4ca80fa7