Dec 02 08:05:02.048 INFO testing EkardNT/sudoku against 1.30.1 for beta-1.31-5
Dec 02 08:05:02.048 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-2/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/beta-1.31-5/1.30.1:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1.30.1 build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 08:05:02.541 INFO [stdout] 16d8b283e5fcb3f6f3a2c173988fe0073d30dbe956789b0611c5e47c11343916
Dec 02 08:05:02.544 INFO running `"docker" "start" "-a" "16d8b283e5fcb3f6f3a2c173988fe0073d30dbe956789b0611c5e47c11343916"`
Dec 02 08:05:04.107 INFO [stderr] usermod: no changes
Dec 02 08:05:04.175 INFO [stderr]    Compiling sudoku v0.1.0 (/source)
Dec 02 08:05:04.854 INFO [stderr] warning: unnecessary parentheses around `while` condition
Dec 02 08:05:04.854 INFO [stderr]    --> src/matrix.rs:185:15
Dec 02 08:05:04.854 INFO [stderr]     |
Dec 02 08:05:04.854 INFO [stderr] 185 |         while (current_down_index != header_index) {
Dec 02 08:05:04.854 INFO [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 02 08:05:04.854 INFO [stderr]     |
Dec 02 08:05:04.854 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Dec 02 08:05:04.854 INFO [stderr] 
Dec 02 08:05:04.854 INFO [stderr] warning: unnecessary parentheses around `while` condition
Dec 02 08:05:04.854 INFO [stderr]    --> src/matrix.rs:191:19
Dec 02 08:05:04.855 INFO [stderr]     |
Dec 02 08:05:04.855 INFO [stderr] 191 |             while (current_right_index != current_down_index) {
Dec 02 08:05:04.855 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 02 08:05:04.855 INFO [stderr] 
Dec 02 08:05:04.855 INFO [stderr] warning: unnecessary parentheses around `while` condition
Dec 02 08:05:04.856 INFO [stderr]    --> src/matrix.rs:223:15
Dec 02 08:05:04.856 INFO [stderr]     |
Dec 02 08:05:04.856 INFO [stderr] 223 |         while (current_up_index != header_index) {
Dec 02 08:05:04.856 INFO [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 02 08:05:04.856 INFO [stderr] 
Dec 02 08:05:04.857 INFO [stderr] warning: unnecessary parentheses around `while` condition
Dec 02 08:05:04.857 INFO [stderr]    --> src/matrix.rs:229:19
Dec 02 08:05:04.857 INFO [stderr]     |
Dec 02 08:05:04.857 INFO [stderr] 229 |             while (current_left_index != current_up_index) {
Dec 02 08:05:04.858 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 02 08:05:04.858 INFO [stderr] 
Dec 02 08:05:04.858 INFO [stderr] warning: unnecessary parentheses around `while` condition
Dec 02 08:05:04.858 INFO [stderr]    --> src/matrix.rs:307:15
Dec 02 08:05:04.858 INFO [stderr]     |
Dec 02 08:05:04.858 INFO [stderr] 307 |         while (current_down_index != min_header_index) {
Dec 02 08:05:04.859 INFO [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 02 08:05:04.859 INFO [stderr] 
Dec 02 08:05:04.859 INFO [stderr] warning: unnecessary parentheses around `while` condition
Dec 02 08:05:04.859 INFO [stderr]    --> src/matrix.rs:313:19
Dec 02 08:05:04.859 INFO [stderr]     |
Dec 02 08:05:04.860 INFO [stderr] 313 |             while (current_right_index != current_down_index) {
Dec 02 08:05:04.860 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 02 08:05:04.860 INFO [stderr] 
Dec 02 08:05:04.860 INFO [stderr] warning: unnecessary parentheses around `while` condition
Dec 02 08:05:04.860 INFO [stderr]    --> src/matrix.rs:332:19
Dec 02 08:05:04.861 INFO [stderr]     |
Dec 02 08:05:04.861 INFO [stderr] 332 |             while (current_left_index != current_down_index) {
Dec 02 08:05:04.861 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 02 08:05:04.861 INFO [stderr] 
Dec 02 08:05:04.861 INFO [stderr] warning: unnecessary parentheses around `while` condition
Dec 02 08:05:04.862 INFO [stderr]    --> src/matrix.rs:358:15
Dec 02 08:05:04.862 INFO [stderr]     |
Dec 02 08:05:04.862 INFO [stderr] 358 |         while (current_header_index != Matrix::ROOT_INDEX) {
Dec 02 08:05:04.862 INFO [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 02 08:05:04.863 INFO [stderr] 
Dec 02 08:05:04.863 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 02 08:05:04.863 INFO [stderr]    --> src/matrix.rs:376:24
Dec 02 08:05:04.863 INFO [stderr]     |
Dec 02 08:05:04.863 INFO [stderr] 376 |                     if (current_index == row_front_index) {
Dec 02 08:05:04.864 INFO [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 02 08:05:04.864 INFO [stderr] 
Dec 02 08:05:04.864 INFO [stderr] warning: unused imports: `Debug`, `Display`, `Formatter`, `Write`
Dec 02 08:05:04.864 INFO [stderr]  --> src/lib.rs:5:16
Dec 02 08:05:04.864 INFO [stderr]   |
Dec 02 08:05:04.865 INFO [stderr] 5 | use std::fmt::{Display, Write, Formatter, Debug};
Dec 02 08:05:04.865 INFO [stderr]   |                ^^^^^^^  ^^^^^  ^^^^^^^^^  ^^^^^
Dec 02 08:05:04.865 INFO [stderr]   |
Dec 02 08:05:04.865 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 02 08:05:04.865 INFO [stderr] 
Dec 02 08:05:04.866 INFO [stderr] warning: unused import: `std::str::FromStr`
Dec 02 08:05:04.866 INFO [stderr]  --> src/lib.rs:6:5
Dec 02 08:05:04.866 INFO [stderr]   |
Dec 02 08:05:04.866 INFO [stderr] 6 | use std::str::FromStr;
Dec 02 08:05:04.866 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 02 08:05:04.867 INFO [stderr] 
Dec 02 08:05:04.867 INFO [stderr] warning: unused import: `matrix::*`
Dec 02 08:05:04.867 INFO [stderr]  --> src/lib.rs:9:5
Dec 02 08:05:04.867 INFO [stderr]   |
Dec 02 08:05:04.867 INFO [stderr] 9 | use matrix::*;
Dec 02 08:05:04.868 INFO [stderr]   |     ^^^^^^^^^
Dec 02 08:05:04.868 INFO [stderr] 
Dec 02 08:05:05.141 INFO [stderr] warning: unused variable: `i`
Dec 02 08:05:05.141 INFO [stderr]    --> src/board.rs:211:13
Dec 02 08:05:05.141 INFO [stderr]     |
Dec 02 08:05:05.141 INFO [stderr] 211 |         let i = col + row * 9;
Dec 02 08:05:05.141 INFO [stderr]     |             ^ help: consider using `_i` instead
Dec 02 08:05:05.141 INFO [stderr]     |
Dec 02 08:05:05.141 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 02 08:05:05.141 INFO [stderr] 
Dec 02 08:05:05.141 INFO [stderr] warning: unused variable: `column`
Dec 02 08:05:05.141 INFO [stderr]    --> src/coords.rs:119:28
Dec 02 08:05:05.141 INFO [stderr]     |
Dec 02 08:05:05.141 INFO [stderr] 119 |     pub fn to_dense(&self, column: &SparseColumn) -> DenseRow {
Dec 02 08:05:05.141 INFO [stderr]     |                            ^^^^^^ help: consider using `_column` instead
Dec 02 08:05:05.141 INFO [stderr] 
Dec 02 08:05:05.141 INFO [stderr] warning: unused variable: `sparse_row`
Dec 02 08:05:05.141 INFO [stderr]   --> src/lib.rs:95:17
Dec 02 08:05:05.141 INFO [stderr]    |
Dec 02 08:05:05.141 INFO [stderr] 95 |             let sparse_row = SparseRow::new(row_index);
Dec 02 08:05:05.141 INFO [stderr]    |                 ^^^^^^^^^^ help: consider using `_sparse_row` instead
Dec 02 08:05:05.141 INFO [stderr] 
Dec 02 08:05:05.141 INFO [stderr] warning: unused variable: `board`
Dec 02 08:05:05.141 INFO [stderr]    --> src/lib.rs:123:25
Dec 02 08:05:05.141 INFO [stderr]     |
Dec 02 08:05:05.141 INFO [stderr] 123 |     fn solve(&mut self, board: &mut Board) -> Result<(), ()> {
Dec 02 08:05:05.141 INFO [stderr]     |                         ^^^^^ help: consider using `_board` instead
Dec 02 08:05:05.141 INFO [stderr] 
Dec 02 08:05:05.150 INFO [stderr] warning: variable does not need to be mutable
Dec 02 08:05:05.150 INFO [stderr]   --> src/lib.rs:65:13
Dec 02 08:05:05.150 INFO [stderr]    |
Dec 02 08:05:05.150 INFO [stderr] 65 |         let mut matrix = [[Link::default(); NONZERO_CONSTRAINTS_PER_POSSIBILITY]; POSSIBILITIES];
Dec 02 08:05:05.150 INFO [stderr]    |             ----^^^^^^
Dec 02 08:05:05.150 INFO [stderr]    |             |
Dec 02 08:05:05.150 INFO [stderr]    |             help: remove this `mut`
Dec 02 08:05:05.150 INFO [stderr]    |
Dec 02 08:05:05.150 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 02 08:05:05.150 INFO [stderr] 
Dec 02 08:05:05.150 INFO [stderr] warning: variable does not need to be mutable
Dec 02 08:05:05.150 INFO [stderr]   --> src/lib.rs:66:13
Dec 02 08:05:05.150 INFO [stderr]    |
Dec 02 08:05:05.150 INFO [stderr] 66 |         let mut headers = [Header::default(); CONSTRAINTS];
Dec 02 08:05:05.150 INFO [stderr]    |             ----^^^^^^^
Dec 02 08:05:05.150 INFO [stderr]    |             |
Dec 02 08:05:05.150 INFO [stderr]    |             help: remove this `mut`
Dec 02 08:05:05.150 INFO [stderr] 
Dec 02 08:05:05.150 INFO [stderr] warning: variable does not need to be mutable
Dec 02 08:05:05.150 INFO [stderr]    --> src/lib.rs:114:9
Dec 02 08:05:05.150 INFO [stderr]     |
Dec 02 08:05:05.150 INFO [stderr] 114 |     let mut constraint: &mut Link = &mut row[dense_column_index];
Dec 02 08:05:05.150 INFO [stderr]     |         ----^^^^^^^^^^
Dec 02 08:05:05.150 INFO [stderr]     |         |
Dec 02 08:05:05.150 INFO [stderr]     |         help: remove this `mut`
Dec 02 08:05:05.150 INFO [stderr] 
Dec 02 08:05:05.238 INFO [stderr] warning: method is never used: `to_sparse`
Dec 02 08:05:05.238 INFO [stderr]   --> src/coords.rs:18:5
Dec 02 08:05:05.238 INFO [stderr]    |
Dec 02 08:05:05.238 INFO [stderr] 18 |     pub fn to_sparse(&self) -> SparseRow {
Dec 02 08:05:05.238 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 08:05:05.238 INFO [stderr]    |
Dec 02 08:05:05.238 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 02 08:05:05.238 INFO [stderr] 
Dec 02 08:05:05.238 INFO [stderr] warning: method is never used: `to_sparse`
Dec 02 08:05:05.238 INFO [stderr]    --> src/coords.rs:130:5
Dec 02 08:05:05.238 INFO [stderr]     |
Dec 02 08:05:05.238 INFO [stderr] 130 |     pub fn to_sparse(&self, row: &DenseRow) -> SparseColumn {
Dec 02 08:05:05.238 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 08:05:05.238 INFO [stderr] 
Dec 02 08:05:05.238 INFO [stderr] warning: constant item is never used: `POSSIBILITIES`
Dec 02 08:05:05.238 INFO [stderr]  --> src/matrix.rs:5:1
Dec 02 08:05:05.238 INFO [stderr]   |
Dec 02 08:05:05.238 INFO [stderr] 5 | const POSSIBILITIES: usize = 9 * 9 * 9;
Dec 02 08:05:05.238 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 08:05:05.238 INFO [stderr] 
Dec 02 08:05:05.238 INFO [stderr] warning: constant item is never used: `CONSTRAINTS`
Dec 02 08:05:05.238 INFO [stderr]  --> src/matrix.rs:9:1
Dec 02 08:05:05.238 INFO [stderr]   |
Dec 02 08:05:05.238 INFO [stderr] 9 | const CONSTRAINTS: usize = 9 * 9 + 9 * 9 + 9 * 9 + 9 * 9;
Dec 02 08:05:05.238 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 08:05:05.238 INFO [stderr] 
Dec 02 08:05:05.238 INFO [stderr] warning: constant item is never used: `NONZERO_CONSTRAINTS_PER_POSSIBILITY`
Dec 02 08:05:05.238 INFO [stderr]   --> src/matrix.rs:13:1
Dec 02 08:05:05.238 INFO [stderr]    |
Dec 02 08:05:05.238 INFO [stderr] 13 | const NONZERO_CONSTRAINTS_PER_POSSIBILITY: usize = 4;
Dec 02 08:05:05.238 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 08:05:05.238 INFO [stderr] 
Dec 02 08:05:05.238 INFO [stderr] warning: constant item is never used: `MATRIX_NODE_COUNT`
Dec 02 08:05:05.238 INFO [stderr]   --> src/matrix.rs:16:1
Dec 02 08:05:05.238 INFO [stderr]    |
Dec 02 08:05:05.238 INFO [stderr] 16 | const MATRIX_NODE_COUNT: usize = 1 + CONSTRAINTS + POSSIBILITIES * NONZERO_CONSTRAINTS_PER_POSSIBILITY;
Dec 02 08:05:05.238 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 08:05:05.238 INFO [stderr] 
Dec 02 08:05:05.246 INFO [stderr] warning: comparison is useless due to type limits
Dec 02 08:05:05.246 INFO [stderr]    --> src/board.rs:158:25
Dec 02 08:05:05.246 INFO [stderr]     |
Dec 02 08:05:05.246 INFO [stderr] 158 |                 assert!(value >= 0 && value <= 9);
Dec 02 08:05:05.246 INFO [stderr]     |                         ^^^^^^^^^^
Dec 02 08:05:05.246 INFO [stderr]     |
Dec 02 08:05:05.246 INFO [stderr]     = note: #[warn(unused_comparisons)] on by default
Dec 02 08:05:05.246 INFO [stderr] 
Dec 02 08:05:05.246 INFO [stderr] warning: unused `std::result::Result` which must be used
Dec 02 08:05:05.246 INFO [stderr]    --> src/board.rs:202:13
Dec 02 08:05:05.246 INFO [stderr]     |
Dec 02 08:05:05.246 INFO [stderr] 202 |             fmt_row(self, f, &mut buf, row);
Dec 02 08:05:05.246 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 08:05:05.246 INFO [stderr]     |
Dec 02 08:05:05.246 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 08:05:05.246 INFO [stderr] 
Dec 02 08:05:06.263 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 02 08:05:06.263 INFO [stderr]   --> src/bin/sudoku.rs:15:12
Dec 02 08:05:06.263 INFO [stderr]    |
Dec 02 08:05:06.263 INFO [stderr] 15 |         if (bytes_read == 0) {
Dec 02 08:05:06.263 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 02 08:05:06.263 INFO [stderr]    |
Dec 02 08:05:06.263 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 02 08:05:06.263 INFO [stderr] 
Dec 02 08:05:06.311 INFO [stderr] warning: unused `std::result::Result` which must be used
Dec 02 08:05:06.311 INFO [stderr]   --> src/bin/sudoku.rs:30:13
Dec 02 08:05:06.311 INFO [stderr]    |
Dec 02 08:05:06.311 INFO [stderr] 30 |             stdout_lock.flush();
Dec 02 08:05:06.311 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^
Dec 02 08:05:06.311 INFO [stderr]    |
Dec 02 08:05:06.311 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 08:05:06.311 INFO [stderr] 
Dec 02 08:05:06.971 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.83s
Dec 02 08:05:06.971 INFO [stderr] su: No module specific data is present
Dec 02 08:05:07.963 INFO running `"docker" "inspect" "16d8b283e5fcb3f6f3a2c173988fe0073d30dbe956789b0611c5e47c11343916"`
Dec 02 08:05:08.317 INFO running `"docker" "rm" "-f" "16d8b283e5fcb3f6f3a2c173988fe0073d30dbe956789b0611c5e47c11343916"`
Dec 02 08:05:08.610 INFO [stdout] 16d8b283e5fcb3f6f3a2c173988fe0073d30dbe956789b0611c5e47c11343916
Dec 02 08:05:08.616 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-2/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/beta-1.31-5/1.30.1:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1.30.1 test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 08:05:09.043 INFO [stdout] 589d07326ba47d84ecddfb7f936e9db4b0fb4968c85468d0244bf3e268858008
Dec 02 08:05:09.045 INFO running `"docker" "start" "-a" "589d07326ba47d84ecddfb7f936e9db4b0fb4968c85468d0244bf3e268858008"`
Dec 02 08:05:10.858 INFO [stderr] usermod: no changes
Dec 02 08:05:10.915 INFO [stderr]    Compiling sudoku v0.1.0 (/source)
Dec 02 08:05:12.219 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 02 08:05:12.219 INFO [stderr]   --> src/bin/sudoku.rs:15:12
Dec 02 08:05:12.219 INFO [stderr]    |
Dec 02 08:05:12.219 INFO [stderr] 15 |         if (bytes_read == 0) {
Dec 02 08:05:12.220 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 02 08:05:12.220 INFO [stderr]    |
Dec 02 08:05:12.220 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 02 08:05:12.220 INFO [stderr] 
Dec 02 08:05:12.287 INFO [stderr] warning: unused `std::result::Result` which must be used
Dec 02 08:05:12.287 INFO [stderr]   --> src/bin/sudoku.rs:30:13
Dec 02 08:05:12.287 INFO [stderr]    |
Dec 02 08:05:12.288 INFO [stderr] 30 |             stdout_lock.flush();
Dec 02 08:05:12.288 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^
Dec 02 08:05:12.288 INFO [stderr]    |
Dec 02 08:05:12.288 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 08:05:12.289 INFO [stderr] 
Dec 02 08:05:12.330 INFO [stderr] warning: unnecessary parentheses around `while` condition
Dec 02 08:05:12.330 INFO [stderr]    --> src/matrix.rs:185:15
Dec 02 08:05:12.330 INFO [stderr]     |
Dec 02 08:05:12.330 INFO [stderr] 185 |         while (current_down_index != header_index) {
Dec 02 08:05:12.330 INFO [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 02 08:05:12.330 INFO [stderr]     |
Dec 02 08:05:12.331 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Dec 02 08:05:12.331 INFO [stderr] 
Dec 02 08:05:12.331 INFO [stderr] warning: unnecessary parentheses around `while` condition
Dec 02 08:05:12.331 INFO [stderr]    --> src/matrix.rs:191:19
Dec 02 08:05:12.331 INFO [stderr]     |
Dec 02 08:05:12.331 INFO [stderr] 191 |             while (current_right_index != current_down_index) {
Dec 02 08:05:12.331 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 02 08:05:12.331 INFO [stderr] 
Dec 02 08:05:12.331 INFO [stderr] warning: unnecessary parentheses around `while` condition
Dec 02 08:05:12.331 INFO [stderr]    --> src/matrix.rs:223:15
Dec 02 08:05:12.331 INFO [stderr]     |
Dec 02 08:05:12.331 INFO [stderr] 223 |         while (current_up_index != header_index) {
Dec 02 08:05:12.331 INFO [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 02 08:05:12.331 INFO [stderr] 
Dec 02 08:05:12.331 INFO [stderr] warning: unnecessary parentheses around `while` condition
Dec 02 08:05:12.331 INFO [stderr]    --> src/matrix.rs:229:19
Dec 02 08:05:12.331 INFO [stderr]     |
Dec 02 08:05:12.331 INFO [stderr] 229 |             while (current_left_index != current_up_index) {
Dec 02 08:05:12.331 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 02 08:05:12.331 INFO [stderr] 
Dec 02 08:05:12.343 INFO [stderr] warning: unnecessary parentheses around `while` condition
Dec 02 08:05:12.343 INFO [stderr]    --> src/matrix.rs:307:15
Dec 02 08:05:12.343 INFO [stderr]     |
Dec 02 08:05:12.343 INFO [stderr] 307 |         while (current_down_index != min_header_index) {
Dec 02 08:05:12.343 INFO [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 02 08:05:12.343 INFO [stderr] 
Dec 02 08:05:12.343 INFO [stderr] warning: unnecessary parentheses around `while` condition
Dec 02 08:05:12.343 INFO [stderr]    --> src/matrix.rs:313:19
Dec 02 08:05:12.343 INFO [stderr]     |
Dec 02 08:05:12.343 INFO [stderr] 313 |             while (current_right_index != current_down_index) {
Dec 02 08:05:12.343 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 02 08:05:12.343 INFO [stderr] 
Dec 02 08:05:12.343 INFO [stderr] warning: unnecessary parentheses around `while` condition
Dec 02 08:05:12.343 INFO [stderr]    --> src/matrix.rs:332:19
Dec 02 08:05:12.343 INFO [stderr]     |
Dec 02 08:05:12.344 INFO [stderr] 332 |             while (current_left_index != current_down_index) {
Dec 02 08:05:12.344 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 02 08:05:12.344 INFO [stderr] 
Dec 02 08:05:12.344 INFO [stderr] warning: unnecessary parentheses around `while` condition
Dec 02 08:05:12.344 INFO [stderr]    --> src/matrix.rs:358:15
Dec 02 08:05:12.344 INFO [stderr]     |
Dec 02 08:05:12.344 INFO [stderr] 358 |         while (current_header_index != Matrix::ROOT_INDEX) {
Dec 02 08:05:12.344 INFO [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 02 08:05:12.344 INFO [stderr] 
Dec 02 08:05:12.344 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 02 08:05:12.344 INFO [stderr]    --> src/matrix.rs:376:24
Dec 02 08:05:12.344 INFO [stderr]     |
Dec 02 08:05:12.344 INFO [stderr] 376 |                     if (current_index == row_front_index) {
Dec 02 08:05:12.344 INFO [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 02 08:05:12.344 INFO [stderr] 
Dec 02 08:05:12.344 INFO [stderr] warning: unused imports: `NodeKind`, `Node`
Dec 02 08:05:12.345 INFO [stderr]    --> src/matrix.rs:389:25
Dec 02 08:05:12.345 INFO [stderr]     |
Dec 02 08:05:12.345 INFO [stderr] 389 |     use super::{Matrix, Node, NodeKind};
Dec 02 08:05:12.345 INFO [stderr]     |                         ^^^^  ^^^^^^^^
Dec 02 08:05:12.345 INFO [stderr]     |
Dec 02 08:05:12.345 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Dec 02 08:05:12.345 INFO [stderr] 
Dec 02 08:05:12.345 INFO [stderr] warning: unused imports: `Debug`, `Display`, `Formatter`, `Write`
Dec 02 08:05:12.345 INFO [stderr]  --> src/lib.rs:5:16
Dec 02 08:05:12.345 INFO [stderr]   |
Dec 02 08:05:12.345 INFO [stderr] 5 | use std::fmt::{Display, Write, Formatter, Debug};
Dec 02 08:05:12.345 INFO [stderr]   |                ^^^^^^^  ^^^^^  ^^^^^^^^^  ^^^^^
Dec 02 08:05:12.345 INFO [stderr] 
Dec 02 08:05:12.345 INFO [stderr] warning: unused import: `std::str::FromStr`
Dec 02 08:05:12.345 INFO [stderr]  --> src/lib.rs:6:5
Dec 02 08:05:12.345 INFO [stderr]   |
Dec 02 08:05:12.345 INFO [stderr] 6 | use std::str::FromStr;
Dec 02 08:05:12.345 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 02 08:05:12.345 INFO [stderr] 
Dec 02 08:05:12.345 INFO [stderr] warning: unused import: `matrix::*`
Dec 02 08:05:12.345 INFO [stderr]  --> src/lib.rs:9:5
Dec 02 08:05:12.345 INFO [stderr]   |
Dec 02 08:05:12.345 INFO [stderr] 9 | use matrix::*;
Dec 02 08:05:12.346 INFO [stderr]   |     ^^^^^^^^^
Dec 02 08:05:12.346 INFO [stderr] 
Dec 02 08:05:12.865 INFO [stderr] warning: unused variable: `i`
Dec 02 08:05:12.865 INFO [stderr]    --> src/board.rs:211:13
Dec 02 08:05:12.865 INFO [stderr]     |
Dec 02 08:05:12.865 INFO [stderr] 211 |         let i = col + row * 9;
Dec 02 08:05:12.865 INFO [stderr]     |             ^ help: consider using `_i` instead
Dec 02 08:05:12.865 INFO [stderr]     |
Dec 02 08:05:12.865 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 02 08:05:12.865 INFO [stderr] 
Dec 02 08:05:12.865 INFO [stderr] warning: unused variable: `dense_row_index`
Dec 02 08:05:12.865 INFO [stderr]    --> src/coords.rs:276:17
Dec 02 08:05:12.865 INFO [stderr]     |
Dec 02 08:05:12.865 INFO [stderr] 276 |             for dense_row_index in 0..9*9*9 {
Dec 02 08:05:12.865 INFO [stderr]     |                 ^^^^^^^^^^^^^^^ help: consider using `_dense_row_index` instead
Dec 02 08:05:12.865 INFO [stderr] 
Dec 02 08:05:12.865 INFO [stderr] warning: unused variable: `column`
Dec 02 08:05:12.865 INFO [stderr]    --> src/coords.rs:119:28
Dec 02 08:05:12.865 INFO [stderr]     |
Dec 02 08:05:12.865 INFO [stderr] 119 |     pub fn to_dense(&self, column: &SparseColumn) -> DenseRow {
Dec 02 08:05:12.865 INFO [stderr]     |                            ^^^^^^ help: consider using `_column` instead
Dec 02 08:05:12.865 INFO [stderr] 
Dec 02 08:05:12.866 INFO [stderr] warning: unused variable: `sparse_row`
Dec 02 08:05:12.866 INFO [stderr]   --> src/lib.rs:95:17
Dec 02 08:05:12.866 INFO [stderr]    |
Dec 02 08:05:12.866 INFO [stderr] 95 |             let sparse_row = SparseRow::new(row_index);
Dec 02 08:05:12.866 INFO [stderr]    |                 ^^^^^^^^^^ help: consider using `_sparse_row` instead
Dec 02 08:05:12.866 INFO [stderr] 
Dec 02 08:05:12.871 INFO [stderr] warning: unused variable: `board`
Dec 02 08:05:12.871 INFO [stderr]    --> src/lib.rs:123:25
Dec 02 08:05:12.871 INFO [stderr]     |
Dec 02 08:05:12.871 INFO [stderr] 123 |     fn solve(&mut self, board: &mut Board) -> Result<(), ()> {
Dec 02 08:05:12.871 INFO [stderr]     |                         ^^^^^ help: consider using `_board` instead
Dec 02 08:05:12.871 INFO [stderr] 
Dec 02 08:05:12.875 INFO [stderr] warning: variable does not need to be mutable
Dec 02 08:05:12.875 INFO [stderr]   --> src/lib.rs:65:13
Dec 02 08:05:12.875 INFO [stderr]    |
Dec 02 08:05:12.875 INFO [stderr] 65 |         let mut matrix = [[Link::default(); NONZERO_CONSTRAINTS_PER_POSSIBILITY]; POSSIBILITIES];
Dec 02 08:05:12.875 INFO [stderr]    |             ----^^^^^^
Dec 02 08:05:12.875 INFO [stderr]    |             |
Dec 02 08:05:12.875 INFO [stderr]    |             help: remove this `mut`
Dec 02 08:05:12.875 INFO [stderr]    |
Dec 02 08:05:12.875 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 02 08:05:12.875 INFO [stderr] 
Dec 02 08:05:12.875 INFO [stderr] warning: variable does not need to be mutable
Dec 02 08:05:12.875 INFO [stderr]   --> src/lib.rs:66:13
Dec 02 08:05:12.875 INFO [stderr]    |
Dec 02 08:05:12.875 INFO [stderr] 66 |         let mut headers = [Header::default(); CONSTRAINTS];
Dec 02 08:05:12.875 INFO [stderr]    |             ----^^^^^^^
Dec 02 08:05:12.875 INFO [stderr]    |             |
Dec 02 08:05:12.875 INFO [stderr]    |             help: remove this `mut`
Dec 02 08:05:12.876 INFO [stderr] 
Dec 02 08:05:12.891 INFO [stderr] warning: variable does not need to be mutable
Dec 02 08:05:12.891 INFO [stderr]    --> src/lib.rs:114:9
Dec 02 08:05:12.891 INFO [stderr]     |
Dec 02 08:05:12.891 INFO [stderr] 114 |     let mut constraint: &mut Link = &mut row[dense_column_index];
Dec 02 08:05:12.891 INFO [stderr]     |         ----^^^^^^^^^^
Dec 02 08:05:12.891 INFO [stderr]     |         |
Dec 02 08:05:12.891 INFO [stderr]     |         help: remove this `mut`
Dec 02 08:05:12.891 INFO [stderr] 
Dec 02 08:05:13.031 INFO [stderr] warning: method is never used: `to_sparse`
Dec 02 08:05:13.031 INFO [stderr]   --> src/coords.rs:18:5
Dec 02 08:05:13.031 INFO [stderr]    |
Dec 02 08:05:13.031 INFO [stderr] 18 |     pub fn to_sparse(&self) -> SparseRow {
Dec 02 08:05:13.031 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 08:05:13.031 INFO [stderr]    |
Dec 02 08:05:13.031 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 02 08:05:13.031 INFO [stderr] 
Dec 02 08:05:13.031 INFO [stderr] warning: constant item is never used: `POSSIBILITIES`
Dec 02 08:05:13.031 INFO [stderr]  --> src/matrix.rs:5:1
Dec 02 08:05:13.031 INFO [stderr]   |
Dec 02 08:05:13.031 INFO [stderr] 5 | const POSSIBILITIES: usize = 9 * 9 * 9;
Dec 02 08:05:13.031 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 08:05:13.031 INFO [stderr] 
Dec 02 08:05:13.031 INFO [stderr] warning: constant item is never used: `CONSTRAINTS`
Dec 02 08:05:13.031 INFO [stderr]  --> src/matrix.rs:9:1
Dec 02 08:05:13.031 INFO [stderr]   |
Dec 02 08:05:13.031 INFO [stderr] 9 | const CONSTRAINTS: usize = 9 * 9 + 9 * 9 + 9 * 9 + 9 * 9;
Dec 02 08:05:13.031 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 08:05:13.031 INFO [stderr] 
Dec 02 08:05:13.031 INFO [stderr] warning: constant item is never used: `NONZERO_CONSTRAINTS_PER_POSSIBILITY`
Dec 02 08:05:13.031 INFO [stderr]   --> src/matrix.rs:13:1
Dec 02 08:05:13.031 INFO [stderr]    |
Dec 02 08:05:13.031 INFO [stderr] 13 | const NONZERO_CONSTRAINTS_PER_POSSIBILITY: usize = 4;
Dec 02 08:05:13.031 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 08:05:13.031 INFO [stderr] 
Dec 02 08:05:13.031 INFO [stderr] warning: constant item is never used: `MATRIX_NODE_COUNT`
Dec 02 08:05:13.031 INFO [stderr]   --> src/matrix.rs:16:1
Dec 02 08:05:13.031 INFO [stderr]    |
Dec 02 08:05:13.031 INFO [stderr] 16 | const MATRIX_NODE_COUNT: usize = 1 + CONSTRAINTS + POSSIBILITIES * NONZERO_CONSTRAINTS_PER_POSSIBILITY;
Dec 02 08:05:13.031 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 08:05:13.031 INFO [stderr] 
Dec 02 08:05:13.043 INFO [stderr] warning: comparison is useless due to type limits
Dec 02 08:05:13.043 INFO [stderr]    --> src/board.rs:158:25
Dec 02 08:05:13.043 INFO [stderr]     |
Dec 02 08:05:13.043 INFO [stderr] 158 |                 assert!(value >= 0 && value <= 9);
Dec 02 08:05:13.043 INFO [stderr]     |                         ^^^^^^^^^^
Dec 02 08:05:13.043 INFO [stderr]     |
Dec 02 08:05:13.043 INFO [stderr]     = note: #[warn(unused_comparisons)] on by default
Dec 02 08:05:13.043 INFO [stderr] 
Dec 02 08:05:13.043 INFO [stderr] warning: unused `std::result::Result` which must be used
Dec 02 08:05:13.043 INFO [stderr]    --> src/board.rs:202:13
Dec 02 08:05:13.043 INFO [stderr]     |
Dec 02 08:05:13.043 INFO [stderr] 202 |             fmt_row(self, f, &mut buf, row);
Dec 02 08:05:13.043 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 08:05:13.043 INFO [stderr]     |
Dec 02 08:05:13.043 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 08:05:13.043 INFO [stderr] 
Dec 02 08:05:14.175 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.29s
Dec 02 08:05:14.180 INFO [stderr] su: No module specific data is present
Dec 02 08:05:14.951 INFO running `"docker" "inspect" "589d07326ba47d84ecddfb7f936e9db4b0fb4968c85468d0244bf3e268858008"`
Dec 02 08:05:15.163 INFO running `"docker" "rm" "-f" "589d07326ba47d84ecddfb7f936e9db4b0fb4968c85468d0244bf3e268858008"`
Dec 02 08:05:15.563 INFO [stdout] 589d07326ba47d84ecddfb7f936e9db4b0fb4968c85468d0244bf3e268858008
Dec 02 08:05:15.569 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-2/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/beta-1.31-5/1.30.1:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1.30.1 test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 08:05:15.908 INFO [stdout] dbe6368894c420af23f05810273ec04b59f8acb1615f8d033c328a847d344c1d
Dec 02 08:05:15.911 INFO running `"docker" "start" "-a" "dbe6368894c420af23f05810273ec04b59f8acb1615f8d033c328a847d344c1d"`
Dec 02 08:05:17.914 INFO [stderr] usermod: no changes
Dec 02 08:05:17.982 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
Dec 02 08:05:17.982 INFO [stderr]      Running /target/debug/deps/sudoku-fe2012fcf34feb7d
Dec 02 08:05:17.984 INFO [stdout] 
Dec 02 08:05:17.984 INFO [stdout] running 18 tests
Dec 02 08:05:17.995 INFO [stdout] test board::tests::board_from_multiline_str ... ok
Dec 02 08:05:17.995 INFO [stdout] test board::tests::board_from_singleline_str ... ok
Dec 02 08:05:17.995 INFO [stdout] test board::tests::possibility_from_matrix_row_consistent_with_get_matrix_row ... ok
Dec 02 08:05:17.995 INFO [stdout] test board::tests::possibility_get_matrix_column_box ... ok
Dec 02 08:05:17.995 INFO [stdout] test board::tests::possibility_get_matrix_column_cell ... ok
Dec 02 08:05:17.999 INFO [stdout] test coords::tests::natural_left ... ok
Dec 02 08:05:18.001 INFO [stdout] test board::tests::possibility_get_matrix_column_row ... ok
Dec 02 08:05:18.001 INFO [stdout] test board::tests::singleline_and_multiline_board_equivalency ... ok
Dec 02 08:05:18.001 INFO [stdout] test coords::tests::first_row ... ok
Dec 02 08:05:18.001 INFO [stdout] test coords::tests::dense_column_to_sparse ... ok
Dec 02 08:05:18.001 INFO [stdout] test board::tests::possibility_get_matrix_row ... ok
Dec 02 08:05:18.001 INFO [stdout] test board::tests::possibility_get_matrix_column_column ... ok
Dec 02 08:05:18.001 INFO [stdout] test coords::tests::natural_down ... ok
Dec 02 08:05:18.001 INFO [stdout] test coords::tests::natural_left_right_reflexive ... ok
Dec 02 08:05:18.001 INFO [stdout] test coords::tests::natural_right ... ok
Dec 02 08:05:18.015 INFO [stdout] test coords::tests::natural_up ... ok
Dec 02 08:05:18.015 INFO [stdout] test coords::tests::natural_up_down_reflexive ... ok
Dec 02 08:05:18.015 INFO [stdout] test matrix::tests::new_matrix ... ok
Dec 02 08:05:18.015 INFO [stdout] 
Dec 02 08:05:18.015 INFO [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 02 08:05:18.015 INFO [stdout] 
Dec 02 08:05:18.015 INFO [stderr]      Running /target/debug/deps/sudoku-6fff7395185a7b98
Dec 02 08:05:18.027 INFO [stdout] 
Dec 02 08:05:18.027 INFO [stdout] running 0 tests
Dec 02 08:05:18.027 INFO [stdout] 
Dec 02 08:05:18.027 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 02 08:05:18.027 INFO [stdout] 
Dec 02 08:05:18.027 INFO [stderr]    Doc-tests sudoku
Dec 02 08:05:19.139 INFO [stdout] 
Dec 02 08:05:19.139 INFO [stdout] running 0 tests
Dec 02 08:05:19.139 INFO [stdout] 
Dec 02 08:05:19.139 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 02 08:05:19.139 INFO [stdout] 
Dec 02 08:05:19.155 INFO [stderr] su: No module specific data is present
Dec 02 08:05:20.323 INFO running `"docker" "inspect" "dbe6368894c420af23f05810273ec04b59f8acb1615f8d033c328a847d344c1d"`
Dec 02 08:05:20.639 INFO running `"docker" "rm" "-f" "dbe6368894c420af23f05810273ec04b59f8acb1615f8d033c328a847d344c1d"`
Dec 02 08:05:20.975 INFO [stdout] dbe6368894c420af23f05810273ec04b59f8acb1615f8d033c328a847d344c1d
