Nov 17 15:42:55.037 INFO testing EkardNT/sudoku against try#2e026d6e5d7621634147ad4c8074f1d964dbb1be for pr-55982
Nov 17 15:42:55.039 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 17 15:42:55.508 INFO [stdout] 54080b61d58cc632c0128829e76f3f566bea8ffa9414f090531a08444dc0ba8d
Nov 17 15:42:55.513 INFO running `"docker" "start" "-a" "54080b61d58cc632c0128829e76f3f566bea8ffa9414f090531a08444dc0ba8d"`
Nov 17 15:42:56.610 INFO [stderr] usermod: no changes
Nov 17 15:42:56.670 INFO [stderr]    Compiling sudoku v0.1.0 (/source)
Nov 17 15:42:57.195 INFO [stderr] warning: unnecessary parentheses around `while` condition
Nov 17 15:42:57.195 INFO [stderr]    --> src/matrix.rs:185:15
Nov 17 15:42:57.195 INFO [stderr]     |
Nov 17 15:42:57.195 INFO [stderr] 185 |         while (current_down_index != header_index) {
Nov 17 15:42:57.195 INFO [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 17 15:42:57.195 INFO [stderr]     |
Nov 17 15:42:57.195 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Nov 17 15:42:57.195 INFO [stderr] 
Nov 17 15:42:57.195 INFO [stderr] warning: unnecessary parentheses around `while` condition
Nov 17 15:42:57.195 INFO [stderr]    --> src/matrix.rs:191:19
Nov 17 15:42:57.195 INFO [stderr]     |
Nov 17 15:42:57.195 INFO [stderr] 191 |             while (current_right_index != current_down_index) {
Nov 17 15:42:57.195 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 17 15:42:57.195 INFO [stderr] 
Nov 17 15:42:57.195 INFO [stderr] warning: unnecessary parentheses around `while` condition
Nov 17 15:42:57.195 INFO [stderr]    --> src/matrix.rs:223:15
Nov 17 15:42:57.195 INFO [stderr]     |
Nov 17 15:42:57.195 INFO [stderr] 223 |         while (current_up_index != header_index) {
Nov 17 15:42:57.195 INFO [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 17 15:42:57.195 INFO [stderr] 
Nov 17 15:42:57.195 INFO [stderr] warning: unnecessary parentheses around `while` condition
Nov 17 15:42:57.195 INFO [stderr]    --> src/matrix.rs:229:19
Nov 17 15:42:57.195 INFO [stderr]     |
Nov 17 15:42:57.195 INFO [stderr] 229 |             while (current_left_index != current_up_index) {
Nov 17 15:42:57.195 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 17 15:42:57.195 INFO [stderr] 
Nov 17 15:42:57.195 INFO [stderr] warning: unnecessary parentheses around `while` condition
Nov 17 15:42:57.195 INFO [stderr]    --> src/matrix.rs:307:15
Nov 17 15:42:57.195 INFO [stderr]     |
Nov 17 15:42:57.195 INFO [stderr] 307 |         while (current_down_index != min_header_index) {
Nov 17 15:42:57.195 INFO [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 17 15:42:57.195 INFO [stderr] 
Nov 17 15:42:57.195 INFO [stderr] warning: unnecessary parentheses around `while` condition
Nov 17 15:42:57.195 INFO [stderr]    --> src/matrix.rs:313:19
Nov 17 15:42:57.196 INFO [stderr]     |
Nov 17 15:42:57.196 INFO [stderr] 313 |             while (current_right_index != current_down_index) {
Nov 17 15:42:57.196 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 17 15:42:57.196 INFO [stderr] 
Nov 17 15:42:57.196 INFO [stderr] warning: unnecessary parentheses around `while` condition
Nov 17 15:42:57.196 INFO [stderr]    --> src/matrix.rs:332:19
Nov 17 15:42:57.196 INFO [stderr]     |
Nov 17 15:42:57.196 INFO [stderr] 332 |             while (current_left_index != current_down_index) {
Nov 17 15:42:57.196 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 17 15:42:57.196 INFO [stderr] 
Nov 17 15:42:57.196 INFO [stderr] warning: unnecessary parentheses around `while` condition
Nov 17 15:42:57.196 INFO [stderr]    --> src/matrix.rs:358:15
Nov 17 15:42:57.196 INFO [stderr]     |
Nov 17 15:42:57.196 INFO [stderr] 358 |         while (current_header_index != Matrix::ROOT_INDEX) {
Nov 17 15:42:57.196 INFO [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 17 15:42:57.196 INFO [stderr] 
Nov 17 15:42:57.196 INFO [stderr] warning: unnecessary parentheses around `if` condition
Nov 17 15:42:57.196 INFO [stderr]    --> src/matrix.rs:376:24
Nov 17 15:42:57.196 INFO [stderr]     |
Nov 17 15:42:57.196 INFO [stderr] 376 |                     if (current_index == row_front_index) {
Nov 17 15:42:57.196 INFO [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 17 15:42:57.196 INFO [stderr] 
Nov 17 15:42:57.196 INFO [stderr] warning: unused imports: `Debug`, `Display`, `Formatter`, `Write`
Nov 17 15:42:57.196 INFO [stderr]  --> src/lib.rs:5:16
Nov 17 15:42:57.196 INFO [stderr]   |
Nov 17 15:42:57.196 INFO [stderr] 5 | use std::fmt::{Display, Write, Formatter, Debug};
Nov 17 15:42:57.196 INFO [stderr]   |                ^^^^^^^  ^^^^^  ^^^^^^^^^  ^^^^^
Nov 17 15:42:57.196 INFO [stderr]   |
Nov 17 15:42:57.196 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 17 15:42:57.196 INFO [stderr] 
Nov 17 15:42:57.196 INFO [stderr] warning: unused import: `std::str::FromStr`
Nov 17 15:42:57.196 INFO [stderr]  --> src/lib.rs:6:5
Nov 17 15:42:57.196 INFO [stderr]   |
Nov 17 15:42:57.196 INFO [stderr] 6 | use std::str::FromStr;
Nov 17 15:42:57.196 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Nov 17 15:42:57.196 INFO [stderr] 
Nov 17 15:42:57.196 INFO [stderr] warning: unused import: `matrix::*`
Nov 17 15:42:57.196 INFO [stderr]  --> src/lib.rs:9:5
Nov 17 15:42:57.196 INFO [stderr]   |
Nov 17 15:42:57.196 INFO [stderr] 9 | use matrix::*;
Nov 17 15:42:57.196 INFO [stderr]   |     ^^^^^^^^^
Nov 17 15:42:57.196 INFO [stderr] 
Nov 17 15:42:57.495 INFO [stderr] warning: unused variable: `i`
Nov 17 15:42:57.495 INFO [stderr]    --> src/board.rs:211:13
Nov 17 15:42:57.495 INFO [stderr]     |
Nov 17 15:42:57.495 INFO [stderr] 211 |         let i = col + row * 9;
Nov 17 15:42:57.495 INFO [stderr]     |             ^ help: consider using `_i` instead
Nov 17 15:42:57.495 INFO [stderr]     |
Nov 17 15:42:57.495 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Nov 17 15:42:57.495 INFO [stderr] 
Nov 17 15:42:57.495 INFO [stderr] warning: unused variable: `column`
Nov 17 15:42:57.495 INFO [stderr]    --> src/coords.rs:119:28
Nov 17 15:42:57.495 INFO [stderr]     |
Nov 17 15:42:57.495 INFO [stderr] 119 |     pub fn to_dense(&self, column: &SparseColumn) -> DenseRow {
Nov 17 15:42:57.495 INFO [stderr]     |                            ^^^^^^ help: consider using `_column` instead
Nov 17 15:42:57.495 INFO [stderr] 
Nov 17 15:42:57.495 INFO [stderr] warning: unused variable: `sparse_row`
Nov 17 15:42:57.495 INFO [stderr]   --> src/lib.rs:95:17
Nov 17 15:42:57.495 INFO [stderr]    |
Nov 17 15:42:57.495 INFO [stderr] 95 |             let sparse_row = SparseRow::new(row_index);
Nov 17 15:42:57.495 INFO [stderr]    |                 ^^^^^^^^^^ help: consider using `_sparse_row` instead
Nov 17 15:42:57.495 INFO [stderr] 
Nov 17 15:42:57.495 INFO [stderr] warning: unused variable: `board`
Nov 17 15:42:57.495 INFO [stderr]    --> src/lib.rs:123:25
Nov 17 15:42:57.495 INFO [stderr]     |
Nov 17 15:42:57.495 INFO [stderr] 123 |     fn solve(&mut self, board: &mut Board) -> Result<(), ()> {
Nov 17 15:42:57.495 INFO [stderr]     |                         ^^^^^ help: consider using `_board` instead
Nov 17 15:42:57.495 INFO [stderr] 
Nov 17 15:42:57.499 INFO [stderr] warning: variable does not need to be mutable
Nov 17 15:42:57.499 INFO [stderr]   --> src/lib.rs:65:13
Nov 17 15:42:57.499 INFO [stderr]    |
Nov 17 15:42:57.499 INFO [stderr] 65 |         let mut matrix = [[Link::default(); NONZERO_CONSTRAINTS_PER_POSSIBILITY]; POSSIBILITIES];
Nov 17 15:42:57.499 INFO [stderr]    |             ----^^^^^^
Nov 17 15:42:57.499 INFO [stderr]    |             |
Nov 17 15:42:57.499 INFO [stderr]    |             help: remove this `mut`
Nov 17 15:42:57.499 INFO [stderr]    |
Nov 17 15:42:57.499 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 17 15:42:57.499 INFO [stderr] 
Nov 17 15:42:57.499 INFO [stderr] warning: variable does not need to be mutable
Nov 17 15:42:57.499 INFO [stderr]   --> src/lib.rs:66:13
Nov 17 15:42:57.499 INFO [stderr]    |
Nov 17 15:42:57.499 INFO [stderr] 66 |         let mut headers = [Header::default(); CONSTRAINTS];
Nov 17 15:42:57.499 INFO [stderr]    |             ----^^^^^^^
Nov 17 15:42:57.499 INFO [stderr]    |             |
Nov 17 15:42:57.499 INFO [stderr]    |             help: remove this `mut`
Nov 17 15:42:57.499 INFO [stderr] 
Nov 17 15:42:57.505 INFO [stderr] warning: variable does not need to be mutable
Nov 17 15:42:57.505 INFO [stderr]    --> src/lib.rs:114:9
Nov 17 15:42:57.505 INFO [stderr]     |
Nov 17 15:42:57.505 INFO [stderr] 114 |     let mut constraint: &mut Link = &mut row[dense_column_index];
Nov 17 15:42:57.505 INFO [stderr]     |         ----^^^^^^^^^^
Nov 17 15:42:57.505 INFO [stderr]     |         |
Nov 17 15:42:57.505 INFO [stderr]     |         help: remove this `mut`
Nov 17 15:42:57.507 INFO [stderr] 
Nov 17 15:42:57.575 INFO [stderr] warning: method is never used: `to_sparse`
Nov 17 15:42:57.575 INFO [stderr]   --> src/coords.rs:18:5
Nov 17 15:42:57.575 INFO [stderr]    |
Nov 17 15:42:57.575 INFO [stderr] 18 |     pub fn to_sparse(&self) -> SparseRow {
Nov 17 15:42:57.575 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:42:57.575 INFO [stderr]    |
Nov 17 15:42:57.575 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 17 15:42:57.575 INFO [stderr] 
Nov 17 15:42:57.575 INFO [stderr] warning: method is never used: `to_sparse`
Nov 17 15:42:57.575 INFO [stderr]    --> src/coords.rs:130:5
Nov 17 15:42:57.575 INFO [stderr]     |
Nov 17 15:42:57.575 INFO [stderr] 130 |     pub fn to_sparse(&self, row: &DenseRow) -> SparseColumn {
Nov 17 15:42:57.575 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:42:57.575 INFO [stderr] 
Nov 17 15:42:57.575 INFO [stderr] warning: constant item is never used: `POSSIBILITIES`
Nov 17 15:42:57.575 INFO [stderr]  --> src/matrix.rs:5:1
Nov 17 15:42:57.575 INFO [stderr]   |
Nov 17 15:42:57.575 INFO [stderr] 5 | const POSSIBILITIES: usize = 9 * 9 * 9;
Nov 17 15:42:57.575 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:42:57.575 INFO [stderr] 
Nov 17 15:42:57.575 INFO [stderr] warning: constant item is never used: `CONSTRAINTS`
Nov 17 15:42:57.575 INFO [stderr]  --> src/matrix.rs:9:1
Nov 17 15:42:57.575 INFO [stderr]   |
Nov 17 15:42:57.575 INFO [stderr] 9 | const CONSTRAINTS: usize = 9 * 9 + 9 * 9 + 9 * 9 + 9 * 9;
Nov 17 15:42:57.575 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:42:57.575 INFO [stderr] 
Nov 17 15:42:57.575 INFO [stderr] warning: constant item is never used: `NONZERO_CONSTRAINTS_PER_POSSIBILITY`
Nov 17 15:42:57.575 INFO [stderr]   --> src/matrix.rs:13:1
Nov 17 15:42:57.575 INFO [stderr]    |
Nov 17 15:42:57.575 INFO [stderr] 13 | const NONZERO_CONSTRAINTS_PER_POSSIBILITY: usize = 4;
Nov 17 15:42:57.575 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:42:57.575 INFO [stderr] 
Nov 17 15:42:57.575 INFO [stderr] warning: constant item is never used: `MATRIX_NODE_COUNT`
Nov 17 15:42:57.575 INFO [stderr]   --> src/matrix.rs:16:1
Nov 17 15:42:57.575 INFO [stderr]    |
Nov 17 15:42:57.575 INFO [stderr] 16 | const MATRIX_NODE_COUNT: usize = 1 + CONSTRAINTS + POSSIBILITIES * NONZERO_CONSTRAINTS_PER_POSSIBILITY;
Nov 17 15:42:57.575 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:42:57.575 INFO [stderr] 
Nov 17 15:42:57.575 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:42:57.575 INFO [stderr]    --> src/matrix.rs:359:13
Nov 17 15:42:57.575 INFO [stderr]     |
Nov 17 15:42:57.575 INFO [stderr] 359 |             writeln!(f, "col {:?}", self.nodes[current_header_index]);
Nov 17 15:42:57.575 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:42:57.576 INFO [stderr]     |
Nov 17 15:42:57.576 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 17 15:42:57.576 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:42:57.576 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 17 15:42:57.576 INFO [stderr] 
Nov 17 15:42:57.576 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:42:57.576 INFO [stderr]   --> src/board.rs:84:13
Nov 17 15:42:57.576 INFO [stderr]    |
Nov 17 15:42:57.576 INFO [stderr] 84 |             write!(to, "{} ", c);
Nov 17 15:42:57.576 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:42:57.576 INFO [stderr]    |
Nov 17 15:42:57.576 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:42:57.576 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 17 15:42:57.576 INFO [stderr] 
Nov 17 15:42:57.576 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:42:57.576 INFO [stderr]   --> src/board.rs:86:9
Nov 17 15:42:57.576 INFO [stderr]    |
Nov 17 15:42:57.576 INFO [stderr] 86 |         write!(to, "{}", self.entries[9*9-1]);
Nov 17 15:42:57.576 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:42:57.576 INFO [stderr]    |
Nov 17 15:42:57.576 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:42:57.576 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 17 15:42:57.576 INFO [stderr] 
Nov 17 15:42:57.589 INFO [stderr] warning: comparison is useless due to type limits
Nov 17 15:42:57.589 INFO [stderr]    --> src/board.rs:158:25
Nov 17 15:42:57.589 INFO [stderr]     |
Nov 17 15:42:57.589 INFO [stderr] 158 |                 assert!(value >= 0 && value <= 9);
Nov 17 15:42:57.589 INFO [stderr]     |                         ^^^^^^^^^^
Nov 17 15:42:57.589 INFO [stderr]     |
Nov 17 15:42:57.589 INFO [stderr]     = note: #[warn(unused_comparisons)] on by default
Nov 17 15:42:57.589 INFO [stderr] 
Nov 17 15:42:57.589 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:42:57.589 INFO [stderr]    --> src/board.rs:202:13
Nov 17 15:42:57.589 INFO [stderr]     |
Nov 17 15:42:57.589 INFO [stderr] 202 |             fmt_row(self, f, &mut buf, row);
Nov 17 15:42:57.589 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:42:57.589 INFO [stderr]     |
Nov 17 15:42:57.589 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:42:57.589 INFO [stderr] 
Nov 17 15:42:58.623 INFO [stderr] warning: unnecessary parentheses around `if` condition
Nov 17 15:42:58.623 INFO [stderr]   --> src/bin/sudoku.rs:15:12
Nov 17 15:42:58.623 INFO [stderr]    |
Nov 17 15:42:58.623 INFO [stderr] 15 |         if (bytes_read == 0) {
Nov 17 15:42:58.623 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 17 15:42:58.623 INFO [stderr]    |
Nov 17 15:42:58.623 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Nov 17 15:42:58.623 INFO [stderr] 
Nov 17 15:42:58.680 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:42:58.681 INFO [stderr]   --> src/bin/sudoku.rs:29:13
Nov 17 15:42:58.681 INFO [stderr]    |
Nov 17 15:42:58.681 INFO [stderr] 29 |             writeln!(stdout_lock);
Nov 17 15:42:58.681 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:42:58.682 INFO [stderr]    |
Nov 17 15:42:58.682 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 17 15:42:58.682 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:42:58.682 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 17 15:42:58.682 INFO [stderr] 
Nov 17 15:42:58.683 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:42:58.683 INFO [stderr]   --> src/bin/sudoku.rs:30:13
Nov 17 15:42:58.683 INFO [stderr]    |
Nov 17 15:42:58.683 INFO [stderr] 30 |             stdout_lock.flush();
Nov 17 15:42:58.684 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^
Nov 17 15:42:58.684 INFO [stderr]    |
Nov 17 15:42:58.684 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:42:58.684 INFO [stderr] 
Nov 17 15:42:59.383 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.73s
Nov 17 15:42:59.383 INFO [stderr] su: No module specific data is present
Nov 17 15:43:00.651 INFO running `"docker" "inspect" "54080b61d58cc632c0128829e76f3f566bea8ffa9414f090531a08444dc0ba8d"`
Nov 17 15:43:00.969 INFO running `"docker" "rm" "-f" "54080b61d58cc632c0128829e76f3f566bea8ffa9414f090531a08444dc0ba8d"`
Nov 17 15:43:01.255 INFO [stdout] 54080b61d58cc632c0128829e76f3f566bea8ffa9414f090531a08444dc0ba8d
Nov 17 15:43:01.259 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 17 15:43:01.710 INFO [stdout] 35592a8d533712903b6a44f51d536424ba1b66e230c95e75ff33bfd68ca868bd
Nov 17 15:43:01.715 INFO running `"docker" "start" "-a" "35592a8d533712903b6a44f51d536424ba1b66e230c95e75ff33bfd68ca868bd"`
Nov 17 15:43:02.907 INFO [stderr] usermod: no changes
Nov 17 15:43:03.003 INFO [stderr]    Compiling sudoku v0.1.0 (/source)
Nov 17 15:43:03.571 INFO [stderr] warning: unnecessary parentheses around `while` condition
Nov 17 15:43:03.571 INFO [stderr]    --> src/matrix.rs:185:15
Nov 17 15:43:03.571 INFO [stderr]     |
Nov 17 15:43:03.571 INFO [stderr] 185 |         while (current_down_index != header_index) {
Nov 17 15:43:03.571 INFO [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 17 15:43:03.571 INFO [stderr]     |
Nov 17 15:43:03.571 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Nov 17 15:43:03.571 INFO [stderr] 
Nov 17 15:43:03.571 INFO [stderr] warning: unnecessary parentheses around `while` condition
Nov 17 15:43:03.571 INFO [stderr]    --> src/matrix.rs:191:19
Nov 17 15:43:03.571 INFO [stderr]     |
Nov 17 15:43:03.571 INFO [stderr] 191 |             while (current_right_index != current_down_index) {
Nov 17 15:43:03.571 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 17 15:43:03.571 INFO [stderr] 
Nov 17 15:43:03.571 INFO [stderr] warning: unnecessary parentheses around `while` condition
Nov 17 15:43:03.571 INFO [stderr]    --> src/matrix.rs:223:15
Nov 17 15:43:03.571 INFO [stderr]     |
Nov 17 15:43:03.571 INFO [stderr] 223 |         while (current_up_index != header_index) {
Nov 17 15:43:03.571 INFO [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 17 15:43:03.571 INFO [stderr] 
Nov 17 15:43:03.571 INFO [stderr] warning: unnecessary parentheses around `while` condition
Nov 17 15:43:03.571 INFO [stderr]    --> src/matrix.rs:229:19
Nov 17 15:43:03.571 INFO [stderr]     |
Nov 17 15:43:03.571 INFO [stderr] 229 |             while (current_left_index != current_up_index) {
Nov 17 15:43:03.571 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 17 15:43:03.571 INFO [stderr] 
Nov 17 15:43:03.571 INFO [stderr] warning: unnecessary parentheses around `while` condition
Nov 17 15:43:03.571 INFO [stderr]    --> src/matrix.rs:307:15
Nov 17 15:43:03.571 INFO [stderr]     |
Nov 17 15:43:03.571 INFO [stderr] 307 |         while (current_down_index != min_header_index) {
Nov 17 15:43:03.571 INFO [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 17 15:43:03.571 INFO [stderr] 
Nov 17 15:43:03.571 INFO [stderr] warning: unnecessary parentheses around `while` condition
Nov 17 15:43:03.571 INFO [stderr]    --> src/matrix.rs:313:19
Nov 17 15:43:03.571 INFO [stderr]     |
Nov 17 15:43:03.571 INFO [stderr] 313 |             while (current_right_index != current_down_index) {
Nov 17 15:43:03.571 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 17 15:43:03.571 INFO [stderr] 
Nov 17 15:43:03.571 INFO [stderr] warning: unnecessary parentheses around `while` condition
Nov 17 15:43:03.571 INFO [stderr]    --> src/matrix.rs:332:19
Nov 17 15:43:03.571 INFO [stderr]     |
Nov 17 15:43:03.571 INFO [stderr] 332 |             while (current_left_index != current_down_index) {
Nov 17 15:43:03.571 INFO [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 17 15:43:03.571 INFO [stderr] 
Nov 17 15:43:03.571 INFO [stderr] warning: unnecessary parentheses around `while` condition
Nov 17 15:43:03.571 INFO [stderr]    --> src/matrix.rs:358:15
Nov 17 15:43:03.571 INFO [stderr]     |
Nov 17 15:43:03.571 INFO [stderr] 358 |         while (current_header_index != Matrix::ROOT_INDEX) {
Nov 17 15:43:03.571 INFO [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 17 15:43:03.571 INFO [stderr] 
Nov 17 15:43:03.571 INFO [stderr] warning: unnecessary parentheses around `if` condition
Nov 17 15:43:03.571 INFO [stderr]    --> src/matrix.rs:376:24
Nov 17 15:43:03.571 INFO [stderr]     |
Nov 17 15:43:03.571 INFO [stderr] 376 |                     if (current_index == row_front_index) {
Nov 17 15:43:03.571 INFO [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 17 15:43:03.571 INFO [stderr] 
Nov 17 15:43:03.572 INFO [stderr] warning: unused imports: `NodeKind`, `Node`
Nov 17 15:43:03.572 INFO [stderr]    --> src/matrix.rs:389:25
Nov 17 15:43:03.572 INFO [stderr]     |
Nov 17 15:43:03.572 INFO [stderr] 389 |     use super::{Matrix, Node, NodeKind};
Nov 17 15:43:03.572 INFO [stderr]     |                         ^^^^  ^^^^^^^^
Nov 17 15:43:03.572 INFO [stderr]     |
Nov 17 15:43:03.572 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Nov 17 15:43:03.572 INFO [stderr] 
Nov 17 15:43:03.572 INFO [stderr] warning: unused imports: `Debug`, `Display`, `Formatter`, `Write`
Nov 17 15:43:03.572 INFO [stderr]  --> src/lib.rs:5:16
Nov 17 15:43:03.572 INFO [stderr]   |
Nov 17 15:43:03.572 INFO [stderr] 5 | use std::fmt::{Display, Write, Formatter, Debug};
Nov 17 15:43:03.572 INFO [stderr]   |                ^^^^^^^  ^^^^^  ^^^^^^^^^  ^^^^^
Nov 17 15:43:03.572 INFO [stderr] 
Nov 17 15:43:03.572 INFO [stderr] warning: unused import: `std::str::FromStr`
Nov 17 15:43:03.572 INFO [stderr]  --> src/lib.rs:6:5
Nov 17 15:43:03.572 INFO [stderr]   |
Nov 17 15:43:03.572 INFO [stderr] 6 | use std::str::FromStr;
Nov 17 15:43:03.572 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Nov 17 15:43:03.582 INFO [stderr] 
Nov 17 15:43:03.582 INFO [stderr] warning: unused import: `matrix::*`
Nov 17 15:43:03.582 INFO [stderr]  --> src/lib.rs:9:5
Nov 17 15:43:03.582 INFO [stderr]   |
Nov 17 15:43:03.582 INFO [stderr] 9 | use matrix::*;
Nov 17 15:43:03.582 INFO [stderr]   |     ^^^^^^^^^
Nov 17 15:43:03.582 INFO [stderr] 
Nov 17 15:43:03.659 INFO [stderr] warning: unnecessary parentheses around `if` condition
Nov 17 15:43:03.659 INFO [stderr]   --> src/bin/sudoku.rs:15:12
Nov 17 15:43:03.659 INFO [stderr]    |
Nov 17 15:43:03.659 INFO [stderr] 15 |         if (bytes_read == 0) {
Nov 17 15:43:03.659 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^ help: remove these parentheses
Nov 17 15:43:03.659 INFO [stderr]    |
Nov 17 15:43:03.659 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Nov 17 15:43:03.659 INFO [stderr] 
Nov 17 15:43:03.708 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:43:03.708 INFO [stderr]   --> src/bin/sudoku.rs:29:13
Nov 17 15:43:03.708 INFO [stderr]    |
Nov 17 15:43:03.709 INFO [stderr] 29 |             writeln!(stdout_lock);
Nov 17 15:43:03.709 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:43:03.709 INFO [stderr]    |
Nov 17 15:43:03.709 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 17 15:43:03.709 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:43:03.709 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 17 15:43:03.709 INFO [stderr] 
Nov 17 15:43:03.709 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:43:03.709 INFO [stderr]   --> src/bin/sudoku.rs:30:13
Nov 17 15:43:03.709 INFO [stderr]    |
Nov 17 15:43:03.709 INFO [stderr] 30 |             stdout_lock.flush();
Nov 17 15:43:03.709 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^
Nov 17 15:43:03.709 INFO [stderr]    |
Nov 17 15:43:03.709 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:43:03.709 INFO [stderr] 
Nov 17 15:43:04.147 INFO [stderr] warning: unused variable: `i`
Nov 17 15:43:04.147 INFO [stderr]    --> src/board.rs:211:13
Nov 17 15:43:04.147 INFO [stderr]     |
Nov 17 15:43:04.147 INFO [stderr] 211 |         let i = col + row * 9;
Nov 17 15:43:04.147 INFO [stderr]     |             ^ help: consider using `_i` instead
Nov 17 15:43:04.147 INFO [stderr]     |
Nov 17 15:43:04.147 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Nov 17 15:43:04.147 INFO [stderr] 
Nov 17 15:43:04.147 INFO [stderr] warning: unused variable: `dense_row_index`
Nov 17 15:43:04.147 INFO [stderr]    --> src/coords.rs:276:17
Nov 17 15:43:04.147 INFO [stderr]     |
Nov 17 15:43:04.147 INFO [stderr] 276 |             for dense_row_index in 0..9*9*9 {
Nov 17 15:43:04.147 INFO [stderr]     |                 ^^^^^^^^^^^^^^^ help: consider using `_dense_row_index` instead
Nov 17 15:43:04.147 INFO [stderr] 
Nov 17 15:43:04.147 INFO [stderr] warning: unused variable: `column`
Nov 17 15:43:04.147 INFO [stderr]    --> src/coords.rs:119:28
Nov 17 15:43:04.147 INFO [stderr]     |
Nov 17 15:43:04.147 INFO [stderr] 119 |     pub fn to_dense(&self, column: &SparseColumn) -> DenseRow {
Nov 17 15:43:04.147 INFO [stderr]     |                            ^^^^^^ help: consider using `_column` instead
Nov 17 15:43:04.147 INFO [stderr] 
Nov 17 15:43:04.147 INFO [stderr] warning: unused variable: `sparse_row`
Nov 17 15:43:04.147 INFO [stderr]   --> src/lib.rs:95:17
Nov 17 15:43:04.147 INFO [stderr]    |
Nov 17 15:43:04.147 INFO [stderr] 95 |             let sparse_row = SparseRow::new(row_index);
Nov 17 15:43:04.147 INFO [stderr]    |                 ^^^^^^^^^^ help: consider using `_sparse_row` instead
Nov 17 15:43:04.147 INFO [stderr] 
Nov 17 15:43:04.147 INFO [stderr] warning: unused variable: `board`
Nov 17 15:43:04.147 INFO [stderr]    --> src/lib.rs:123:25
Nov 17 15:43:04.147 INFO [stderr]     |
Nov 17 15:43:04.147 INFO [stderr] 123 |     fn solve(&mut self, board: &mut Board) -> Result<(), ()> {
Nov 17 15:43:04.147 INFO [stderr]     |                         ^^^^^ help: consider using `_board` instead
Nov 17 15:43:04.147 INFO [stderr] 
Nov 17 15:43:04.160 INFO [stderr] warning: variable does not need to be mutable
Nov 17 15:43:04.160 INFO [stderr]   --> src/lib.rs:65:13
Nov 17 15:43:04.160 INFO [stderr]    |
Nov 17 15:43:04.160 INFO [stderr] 65 |         let mut matrix = [[Link::default(); NONZERO_CONSTRAINTS_PER_POSSIBILITY]; POSSIBILITIES];
Nov 17 15:43:04.160 INFO [stderr]    |             ----^^^^^^
Nov 17 15:43:04.160 INFO [stderr]    |             |
Nov 17 15:43:04.160 INFO [stderr]    |             help: remove this `mut`
Nov 17 15:43:04.160 INFO [stderr]    |
Nov 17 15:43:04.160 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 17 15:43:04.160 INFO [stderr] 
Nov 17 15:43:04.160 INFO [stderr] warning: variable does not need to be mutable
Nov 17 15:43:04.160 INFO [stderr]   --> src/lib.rs:66:13
Nov 17 15:43:04.160 INFO [stderr]    |
Nov 17 15:43:04.160 INFO [stderr] 66 |         let mut headers = [Header::default(); CONSTRAINTS];
Nov 17 15:43:04.160 INFO [stderr]    |             ----^^^^^^^
Nov 17 15:43:04.160 INFO [stderr]    |             |
Nov 17 15:43:04.160 INFO [stderr]    |             help: remove this `mut`
Nov 17 15:43:04.160 INFO [stderr] 
Nov 17 15:43:04.171 INFO [stderr] warning: variable does not need to be mutable
Nov 17 15:43:04.171 INFO [stderr]    --> src/lib.rs:114:9
Nov 17 15:43:04.171 INFO [stderr]     |
Nov 17 15:43:04.171 INFO [stderr] 114 |     let mut constraint: &mut Link = &mut row[dense_column_index];
Nov 17 15:43:04.171 INFO [stderr]     |         ----^^^^^^^^^^
Nov 17 15:43:04.171 INFO [stderr]     |         |
Nov 17 15:43:04.171 INFO [stderr]     |         help: remove this `mut`
Nov 17 15:43:04.171 INFO [stderr] 
Nov 17 15:43:04.327 INFO [stderr] warning: method is never used: `to_sparse`
Nov 17 15:43:04.327 INFO [stderr]   --> src/coords.rs:18:5
Nov 17 15:43:04.327 INFO [stderr]    |
Nov 17 15:43:04.327 INFO [stderr] 18 |     pub fn to_sparse(&self) -> SparseRow {
Nov 17 15:43:04.327 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:43:04.327 INFO [stderr]    |
Nov 17 15:43:04.327 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 17 15:43:04.327 INFO [stderr] 
Nov 17 15:43:04.329 INFO [stderr] warning: constant item is never used: `POSSIBILITIES`
Nov 17 15:43:04.329 INFO [stderr]  --> src/matrix.rs:5:1
Nov 17 15:43:04.329 INFO [stderr]   |
Nov 17 15:43:04.329 INFO [stderr] 5 | const POSSIBILITIES: usize = 9 * 9 * 9;
Nov 17 15:43:04.329 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:43:04.329 INFO [stderr] 
Nov 17 15:43:04.329 INFO [stderr] warning: constant item is never used: `CONSTRAINTS`
Nov 17 15:43:04.329 INFO [stderr]  --> src/matrix.rs:9:1
Nov 17 15:43:04.329 INFO [stderr]   |
Nov 17 15:43:04.329 INFO [stderr] 9 | const CONSTRAINTS: usize = 9 * 9 + 9 * 9 + 9 * 9 + 9 * 9;
Nov 17 15:43:04.329 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:43:04.329 INFO [stderr] 
Nov 17 15:43:04.329 INFO [stderr] warning: constant item is never used: `NONZERO_CONSTRAINTS_PER_POSSIBILITY`
Nov 17 15:43:04.329 INFO [stderr]   --> src/matrix.rs:13:1
Nov 17 15:43:04.329 INFO [stderr]    |
Nov 17 15:43:04.329 INFO [stderr] 13 | const NONZERO_CONSTRAINTS_PER_POSSIBILITY: usize = 4;
Nov 17 15:43:04.329 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:43:04.329 INFO [stderr] 
Nov 17 15:43:04.329 INFO [stderr] warning: constant item is never used: `MATRIX_NODE_COUNT`
Nov 17 15:43:04.329 INFO [stderr]   --> src/matrix.rs:16:1
Nov 17 15:43:04.329 INFO [stderr]    |
Nov 17 15:43:04.329 INFO [stderr] 16 | const MATRIX_NODE_COUNT: usize = 1 + CONSTRAINTS + POSSIBILITIES * NONZERO_CONSTRAINTS_PER_POSSIBILITY;
Nov 17 15:43:04.329 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:43:04.329 INFO [stderr] 
Nov 17 15:43:04.334 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:43:04.334 INFO [stderr]    --> src/matrix.rs:359:13
Nov 17 15:43:04.334 INFO [stderr]     |
Nov 17 15:43:04.334 INFO [stderr] 359 |             writeln!(f, "col {:?}", self.nodes[current_header_index]);
Nov 17 15:43:04.334 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:43:04.334 INFO [stderr]     |
Nov 17 15:43:04.334 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 17 15:43:04.335 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:43:04.335 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 17 15:43:04.335 INFO [stderr] 
Nov 17 15:43:04.336 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:43:04.336 INFO [stderr]   --> src/board.rs:84:13
Nov 17 15:43:04.336 INFO [stderr]    |
Nov 17 15:43:04.336 INFO [stderr] 84 |             write!(to, "{} ", c);
Nov 17 15:43:04.336 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:43:04.336 INFO [stderr]    |
Nov 17 15:43:04.336 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:43:04.336 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 17 15:43:04.336 INFO [stderr] 
Nov 17 15:43:04.336 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:43:04.336 INFO [stderr]   --> src/board.rs:86:9
Nov 17 15:43:04.336 INFO [stderr]    |
Nov 17 15:43:04.336 INFO [stderr] 86 |         write!(to, "{}", self.entries[9*9-1]);
Nov 17 15:43:04.336 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:43:04.336 INFO [stderr]    |
Nov 17 15:43:04.337 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:43:04.337 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 17 15:43:04.337 INFO [stderr] 
Nov 17 15:43:04.337 INFO [stderr] warning: comparison is useless due to type limits
Nov 17 15:43:04.337 INFO [stderr]    --> src/board.rs:158:25
Nov 17 15:43:04.337 INFO [stderr]     |
Nov 17 15:43:04.337 INFO [stderr] 158 |                 assert!(value >= 0 && value <= 9);
Nov 17 15:43:04.337 INFO [stderr]     |                         ^^^^^^^^^^
Nov 17 15:43:04.337 INFO [stderr]     |
Nov 17 15:43:04.337 INFO [stderr]     = note: #[warn(unused_comparisons)] on by default
Nov 17 15:43:04.337 INFO [stderr] 
Nov 17 15:43:04.337 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 15:43:04.337 INFO [stderr]    --> src/board.rs:202:13
Nov 17 15:43:04.337 INFO [stderr]     |
Nov 17 15:43:04.337 INFO [stderr] 202 |             fmt_row(self, f, &mut buf, row);
Nov 17 15:43:04.338 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 15:43:04.338 INFO [stderr]     |
Nov 17 15:43:04.338 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 15:43:04.338 INFO [stderr] 
Nov 17 15:43:05.499 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.55s
Nov 17 15:43:05.501 INFO [stderr] su: No module specific data is present
Nov 17 15:43:06.710 INFO running `"docker" "inspect" "35592a8d533712903b6a44f51d536424ba1b66e230c95e75ff33bfd68ca868bd"`
Nov 17 15:43:06.973 INFO running `"docker" "rm" "-f" "35592a8d533712903b6a44f51d536424ba1b66e230c95e75ff33bfd68ca868bd"`
Nov 17 15:43:07.315 INFO [stdout] 35592a8d533712903b6a44f51d536424ba1b66e230c95e75ff33bfd68ca868bd
Nov 17 15:43:07.321 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 17 15:43:07.807 INFO [stdout] b5f7dc2d1a76b4c004efe25354422b7905cb5f905d071ca91be1adfa7d1fed90
Nov 17 15:43:07.809 INFO running `"docker" "start" "-a" "b5f7dc2d1a76b4c004efe25354422b7905cb5f905d071ca91be1adfa7d1fed90"`
Nov 17 15:43:09.670 INFO [stderr] usermod: no changes
Nov 17 15:43:09.731 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Nov 17 15:43:09.731 INFO [stderr]      Running /target/debug/deps/sudoku-e62f6bb90b890d59
Nov 17 15:43:09.753 INFO [stdout] 
Nov 17 15:43:09.754 INFO [stdout] running 18 tests
Nov 17 15:43:09.767 INFO [stdout] test board::tests::possibility_get_matrix_column_cell ... ok
Nov 17 15:43:09.767 INFO [stdout] test board::tests::possibility_get_matrix_column_box ... ok
Nov 17 15:43:09.767 INFO [stdout] test board::tests::possibility_from_matrix_row_consistent_with_get_matrix_row ... ok
Nov 17 15:43:09.767 INFO [stdout] test board::tests::possibility_get_matrix_column_column ... ok
Nov 17 15:43:09.767 INFO [stdout] test board::tests::board_from_multiline_str ... ok
Nov 17 15:43:09.767 INFO [stdout] test board::tests::board_from_singleline_str ... ok
Nov 17 15:43:09.767 INFO [stdout] test board::tests::possibility_get_matrix_column_row ... ok
Nov 17 15:43:09.767 INFO [stdout] test coords::tests::natural_right ... ok
Nov 17 15:43:09.767 INFO [stdout] test coords::tests::natural_left_right_reflexive ... ok
Nov 17 15:43:09.767 INFO [stdout] test board::tests::possibility_get_matrix_row ... ok
Nov 17 15:43:09.767 INFO [stdout] test coords::tests::natural_down ... ok
Nov 17 15:43:09.776 INFO [stdout] test coords::tests::natural_left ... ok
Nov 17 15:43:09.776 INFO [stdout] test coords::tests::first_row ... ok
Nov 17 15:43:09.776 INFO [stdout] test board::tests::singleline_and_multiline_board_equivalency ... ok
Nov 17 15:43:09.776 INFO [stdout] test coords::tests::dense_column_to_sparse ... ok
Nov 17 15:43:09.776 INFO [stdout] test coords::tests::natural_up ... ok
Nov 17 15:43:09.776 INFO [stdout] test coords::tests::natural_up_down_reflexive ... ok
Nov 17 15:43:09.776 INFO [stdout] test matrix::tests::new_matrix ... ok
Nov 17 15:43:09.776 INFO [stdout] 
Nov 17 15:43:09.776 INFO [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 17 15:43:09.776 INFO [stdout] 
Nov 17 15:43:09.783 INFO [stdout] 
Nov 17 15:43:09.783 INFO [stderr]      Running /target/debug/deps/sudoku-e35e9bafd7be52c2
Nov 17 15:43:09.783 INFO [stdout] running 0 tests
Nov 17 15:43:09.783 INFO [stderr]    Doc-tests sudoku
Nov 17 15:43:09.783 INFO [stdout] 
Nov 17 15:43:09.783 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 17 15:43:09.783 INFO [stdout] 
Nov 17 15:43:10.359 INFO [stdout] 
Nov 17 15:43:10.359 INFO [stdout] running 0 tests
Nov 17 15:43:10.359 INFO [stdout] 
Nov 17 15:43:10.359 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 17 15:43:10.359 INFO [stdout] 
Nov 17 15:43:10.366 INFO [stderr] su: No module specific data is present
Nov 17 15:43:10.967 INFO running `"docker" "inspect" "b5f7dc2d1a76b4c004efe25354422b7905cb5f905d071ca91be1adfa7d1fed90"`
Nov 17 15:43:11.277 INFO running `"docker" "rm" "-f" "b5f7dc2d1a76b4c004efe25354422b7905cb5f905d071ca91be1adfa7d1fed90"`
Nov 17 15:43:11.539 INFO [stdout] b5f7dc2d1a76b4c004efe25354422b7905cb5f905d071ca91be1adfa7d1fed90