Dec 17 22:34:23.039 INFO checking jamwaffles/SudokuSolver.rs against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 22:34:23.040 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/jamwaffles/SudokuSolver.rs:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 22:34:23.568 INFO [stdout] ae77f764a874d339add44a9dc1b3d29dfe336f7484f77d89844c3cd733b04873
Dec 17 22:34:23.571 INFO running `"docker" "start" "-a" "ae77f764a874d339add44a9dc1b3d29dfe336f7484f77d89844c3cd733b04873"`
Dec 17 22:34:25.341 INFO [stderr]     Checking SudokuSolver v0.1.0 (/opt/crater/workdir)
Dec 17 22:34:25.648 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 17 22:34:25.648 INFO [stderr]   --> src/sudoku/mod.rs:93:7
Dec 17 22:34:25.648 INFO [stderr]    |
Dec 17 22:34:25.648 INFO [stderr] 93 |                 if(col == 0) {
Dec 17 22:34:25.648 INFO [stderr]    |                   ^^^^^^^^^^ help: remove these parentheses
Dec 17 22:34:25.648 INFO [stderr]    |
Dec 17 22:34:25.648 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 17 22:34:25.648 INFO [stderr] 
Dec 17 22:34:25.648 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 17 22:34:25.648 INFO [stderr]    --> src/sudoku/mod.rs:195:32
Dec 17 22:34:25.648 INFO [stderr]     |
Dec 17 22:34:25.648 INFO [stderr] 195 |                         'columns: for block_y in (top..top + 3) {
Dec 17 22:34:25.648 INFO [stderr]     |                                                  ^^^^^^^^^^^^^^ help: remove these parentheses
Dec 17 22:34:25.648 INFO [stderr] 
Dec 17 22:34:25.648 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 17 22:34:25.648 INFO [stderr]    --> src/sudoku/mod.rs:196:23
Dec 17 22:34:25.648 INFO [stderr]     |
Dec 17 22:34:25.648 INFO [stderr] 196 |                             for block_x in (left..left + 3) {
Dec 17 22:34:25.648 INFO [stderr]     |                                            ^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 17 22:34:25.648 INFO [stderr] 
Dec 17 22:34:25.728 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 17 22:34:25.728 INFO [stderr]   --> src/sudoku/mod.rs:93:7
Dec 17 22:34:25.728 INFO [stderr]    |
Dec 17 22:34:25.728 INFO [stderr] 93 |                 if(col == 0) {
Dec 17 22:34:25.728 INFO [stderr]    |                   ^^^^^^^^^^ help: remove these parentheses
Dec 17 22:34:25.728 INFO [stderr]    |
Dec 17 22:34:25.728 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 17 22:34:25.728 INFO [stderr] 
Dec 17 22:34:25.728 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 17 22:34:25.728 INFO [stderr]    --> src/sudoku/mod.rs:195:32
Dec 17 22:34:25.728 INFO [stderr]     |
Dec 17 22:34:25.728 INFO [stderr] 195 |                         'columns: for block_y in (top..top + 3) {
Dec 17 22:34:25.728 INFO [stderr]     |                                                  ^^^^^^^^^^^^^^ help: remove these parentheses
Dec 17 22:34:25.728 INFO [stderr] 
Dec 17 22:34:25.728 INFO [stderr] warning: unnecessary parentheses around `for` head expression
Dec 17 22:34:25.728 INFO [stderr]    --> src/sudoku/mod.rs:196:23
Dec 17 22:34:25.728 INFO [stderr]     |
Dec 17 22:34:25.728 INFO [stderr] 196 |                             for block_x in (left..left + 3) {
Dec 17 22:34:25.729 INFO [stderr]     |                                            ^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 17 22:34:25.729 INFO [stderr] 
Dec 17 22:34:25.856 INFO [stderr] warning: unused variable: `value`
Dec 17 22:34:25.856 INFO [stderr]    --> src/sudoku/mod.rs:160:19
Dec 17 22:34:25.856 INFO [stderr]     |
Dec 17 22:34:25.856 INFO [stderr] 160 |                         for (row_x, value) in self.board[y].iter().enumerate() {
Dec 17 22:34:25.856 INFO [stderr]     |                                     ^^^^^ help: consider using `_value` instead
Dec 17 22:34:25.856 INFO [stderr]     |
Dec 17 22:34:25.856 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 17 22:34:25.856 INFO [stderr] 
Dec 17 22:34:25.856 INFO [stderr] warning: unused variable: `value`
Dec 17 22:34:25.856 INFO [stderr]    --> src/sudoku/mod.rs:179:19
Dec 17 22:34:25.856 INFO [stderr]     |
Dec 17 22:34:25.856 INFO [stderr] 179 |                         for (col_y, value) in col.iter().enumerate() {
Dec 17 22:34:25.856 INFO [stderr]     |                                     ^^^^^ help: consider using `_value` instead
Dec 17 22:34:25.856 INFO [stderr] 
Dec 17 22:34:25.884 INFO [stderr] warning: method is never used: `new`
Dec 17 22:34:25.884 INFO [stderr]   --> src/sudoku/mod.rs:12:2
Dec 17 22:34:25.884 INFO [stderr]    |
Dec 17 22:34:25.884 INFO [stderr] 12 |     pub fn new(input_board: &[ [ u8; 9 ]; 9 ]) -> Board {
Dec 17 22:34:25.884 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:34:25.884 INFO [stderr]    |
Dec 17 22:34:25.884 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 22:34:25.884 INFO [stderr] 
Dec 17 22:34:25.884 INFO [stderr] warning: crate `SudokuSolver` should have a snake case name such as `sudoku_solver`
Dec 17 22:34:25.884 INFO [stderr]   |
Dec 17 22:34:25.884 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 17 22:34:25.888 INFO [stderr] 
Dec 17 22:34:25.938 INFO [stderr] warning: unused variable: `value`
Dec 17 22:34:25.938 INFO [stderr]    --> src/sudoku/mod.rs:160:19
Dec 17 22:34:25.938 INFO [stderr]     |
Dec 17 22:34:25.938 INFO [stderr] 160 |                         for (row_x, value) in self.board[y].iter().enumerate() {
Dec 17 22:34:25.938 INFO [stderr]     |                                     ^^^^^ help: consider using `_value` instead
Dec 17 22:34:25.938 INFO [stderr]     |
Dec 17 22:34:25.938 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 17 22:34:25.938 INFO [stderr] 
Dec 17 22:34:25.938 INFO [stderr] warning: unused variable: `value`
Dec 17 22:34:25.938 INFO [stderr]    --> src/sudoku/mod.rs:179:19
Dec 17 22:34:25.938 INFO [stderr]     |
Dec 17 22:34:25.938 INFO [stderr] 179 |                         for (col_y, value) in col.iter().enumerate() {
Dec 17 22:34:25.938 INFO [stderr]     |                                     ^^^^^ help: consider using `_value` instead
Dec 17 22:34:25.938 INFO [stderr] 
Dec 17 22:34:25.982 INFO [stderr] warning: method is never used: `new`
Dec 17 22:34:25.982 INFO [stderr]   --> src/sudoku/mod.rs:12:2
Dec 17 22:34:25.982 INFO [stderr]    |
Dec 17 22:34:25.982 INFO [stderr] 12 |     pub fn new(input_board: &[ [ u8; 9 ]; 9 ]) -> Board {
Dec 17 22:34:25.982 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 22:34:25.982 INFO [stderr]    |
Dec 17 22:34:25.982 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 22:34:25.982 INFO [stderr] 
Dec 17 22:34:25.982 INFO [stderr] warning: crate `SudokuSolver` should have a snake case name such as `sudoku_solver`
Dec 17 22:34:25.982 INFO [stderr]   |
Dec 17 22:34:25.982 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 17 22:34:25.982 INFO [stderr] 
Dec 17 22:34:26.000 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
Dec 17 22:34:27.002 INFO running `"docker" "inspect" "ae77f764a874d339add44a9dc1b3d29dfe336f7484f77d89844c3cd733b04873"`
Dec 17 22:34:27.270 INFO running `"docker" "rm" "-f" "ae77f764a874d339add44a9dc1b3d29dfe336f7484f77d89844c3cd733b04873"`
Dec 17 22:34:27.528 INFO [stdout] ae77f764a874d339add44a9dc1b3d29dfe336f7484f77d89844c3cd733b04873