Dec 06 13:38:49.307 INFO testing Gregory-Meyer/sweepsolve-rs against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 06 13:38:49.308 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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"`
Dec 06 13:38:49.859 INFO [stdout] a945c5a588f1c74ce0342c1080fe53b142a1a4db91104b60bb975324eaf5fd43
Dec 06 13:38:49.861 INFO running `"docker" "start" "-a" "a945c5a588f1c74ce0342c1080fe53b142a1a4db91104b60bb975324eaf5fd43"`
Dec 06 13:38:51.338 INFO [stderr] usermod: no changes
Dec 06 13:38:51.446 INFO [stderr]    Compiling rand v0.5.5
Dec 06 13:38:51.446 INFO [stderr]    Compiling approx v0.3.0
Dec 06 13:38:51.984 INFO [stderr]    Compiling alga v0.7.1
Dec 06 13:38:56.738 INFO [stderr]    Compiling nalgebra v0.16.0
Dec 06 13:39:25.216 INFO [stderr]    Compiling sweepsolve-rs v0.1.0 (/source)
Dec 06 13:39:26.124 INFO [stderr] warning: variant is never constructed: `NotMine`
Dec 06 13:39:26.124 INFO [stderr]  --> src/solver/click_result.rs:5:5
Dec 06 13:39:26.124 INFO [stderr]   |
Dec 06 13:39:26.124 INFO [stderr] 5 |     NotMine(MineCount),
Dec 06 13:39:26.124 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 06 13:39:26.124 INFO [stderr]   |
Dec 06 13:39:26.124 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 06 13:39:26.124 INFO [stderr] 
Dec 06 13:39:26.124 INFO [stderr] warning: variant is never constructed: `Mine`
Dec 06 13:39:26.124 INFO [stderr]  --> src/solver/click_result.rs:6:5
Dec 06 13:39:26.124 INFO [stderr]   |
Dec 06 13:39:26.124 INFO [stderr] 6 |     Mine,
Dec 06 13:39:26.124 INFO [stderr]   |     ^^^^
Dec 06 13:39:26.124 INFO [stderr] 
Dec 06 13:39:26.124 INFO [stderr] warning: method is never used: `new`
Dec 06 13:39:26.124 INFO [stderr]  --> src/solver/mine_count.rs:7:5
Dec 06 13:39:26.124 INFO [stderr]   |
Dec 06 13:39:26.124 INFO [stderr] 7 |     pub fn new(count: u8) -> MineCount {
Dec 06 13:39:26.124 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 13:39:26.124 INFO [stderr] 
Dec 06 13:39:26.124 INFO [stderr] warning: method is never used: `get`
Dec 06 13:39:26.124 INFO [stderr]   --> src/solver/mine_count.rs:13:5
Dec 06 13:39:26.124 INFO [stderr]    |
Dec 06 13:39:26.124 INFO [stderr] 13 |     pub fn get(&self) -> u8 {
Dec 06 13:39:26.124 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 13:39:26.124 INFO [stderr] 
Dec 06 13:39:26.124 INFO [stderr] warning: method is never used: `to_count_update`
Dec 06 13:39:26.124 INFO [stderr]   --> src/solver/update.rs:12:5
Dec 06 13:39:26.124 INFO [stderr]    |
Dec 06 13:39:26.124 INFO [stderr] 12 |     pub fn to_count_update(&self) -> Option<CountUpdate> {
Dec 06 13:39:26.124 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 13:39:26.124 INFO [stderr] 
Dec 06 13:39:26.125 INFO [stderr] warning: variant is never constructed: `Clicked`
Dec 06 13:39:26.125 INFO [stderr]  --> src/solver/tile_state.rs:6:5
Dec 06 13:39:26.125 INFO [stderr]   |
Dec 06 13:39:26.125 INFO [stderr] 6 |     Clicked(MineCount),
Dec 06 13:39:26.125 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 06 13:39:26.125 INFO [stderr] 
Dec 06 13:39:26.125 INFO [stderr] warning: variant is never constructed: `Mine`
Dec 06 13:39:26.125 INFO [stderr]  --> src/solver/tile_state.rs:7:5
Dec 06 13:39:26.125 INFO [stderr]   |
Dec 06 13:39:26.125 INFO [stderr] 7 |     Mine,
Dec 06 13:39:26.125 INFO [stderr]   |     ^^^^
Dec 06 13:39:26.125 INFO [stderr] 
Dec 06 13:39:26.125 INFO [stderr] warning: struct is never constructed: `Solver`
Dec 06 13:39:26.125 INFO [stderr]   --> src/solver/mod.rs:16:1
Dec 06 13:39:26.125 INFO [stderr]    |
Dec 06 13:39:26.125 INFO [stderr] 16 | pub struct Solver {
Dec 06 13:39:26.125 INFO [stderr]    | ^^^^^^^^^^^^^^^^^
Dec 06 13:39:26.125 INFO [stderr] 
Dec 06 13:39:26.125 INFO [stderr] warning: method is never used: `new`
Dec 06 13:39:26.125 INFO [stderr]   --> src/solver/mod.rs:24:5
Dec 06 13:39:26.125 INFO [stderr]    |
Dec 06 13:39:26.125 INFO [stderr] 24 |     pub fn new(width: usize, height: usize, num_mines: usize) -> Solver {
Dec 06 13:39:26.125 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 13:39:26.125 INFO [stderr] 
Dec 06 13:39:26.125 INFO [stderr] warning: method is never used: `next_move`
Dec 06 13:39:26.125 INFO [stderr]   --> src/solver/mod.rs:36:5
Dec 06 13:39:26.125 INFO [stderr]    |
Dec 06 13:39:26.125 INFO [stderr] 36 |     pub fn next_move(&self) -> Option<(usize, usize)> {
Dec 06 13:39:26.125 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 13:39:26.125 INFO [stderr] 
Dec 06 13:39:26.125 INFO [stderr] warning: method is never used: `update_board`
Dec 06 13:39:26.125 INFO [stderr]   --> src/solver/mod.rs:54:5
Dec 06 13:39:26.125 INFO [stderr]    |
Dec 06 13:39:26.125 INFO [stderr] 54 |     pub fn update_board(&mut self, update: Update) -> bool {
Dec 06 13:39:26.125 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 13:39:26.125 INFO [stderr] 
Dec 06 13:39:26.125 INFO [stderr] warning: method is never used: `get_unclicked_probabilities`
Dec 06 13:39:26.125 INFO [stderr]   --> src/solver/mod.rs:69:5
Dec 06 13:39:26.125 INFO [stderr]    |
Dec 06 13:39:26.125 INFO [stderr] 69 |     fn get_unclicked_probabilities(&self) -> Vec<(usize, f64)> {
Dec 06 13:39:26.125 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 13:39:26.125 INFO [stderr] 
Dec 06 13:39:26.125 INFO [stderr] warning: method is never used: `do_update_board`
Dec 06 13:39:26.125 INFO [stderr]   --> src/solver/mod.rs:78:5
Dec 06 13:39:26.125 INFO [stderr]    |
Dec 06 13:39:26.125 INFO [stderr] 78 |     fn do_update_board(&mut self, update: CountUpdate) {
Dec 06 13:39:26.125 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 13:39:26.125 INFO [stderr] 
Dec 06 13:39:26.125 INFO [stderr] warning: method is never used: `update_coeff_mtx`
Dec 06 13:39:26.125 INFO [stderr]   --> src/solver/mod.rs:89:5
Dec 06 13:39:26.125 INFO [stderr]    |
Dec 06 13:39:26.125 INFO [stderr] 89 |     fn update_coeff_mtx(&self, update: CountUpdate) -> DMatrix<f64> {
Dec 06 13:39:26.125 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 13:39:26.125 INFO [stderr] 
Dec 06 13:39:26.125 INFO [stderr] warning: method is never used: `update_coeff_vec`
Dec 06 13:39:26.125 INFO [stderr]    --> src/solver/mod.rs:104:5
Dec 06 13:39:26.125 INFO [stderr]     |
Dec 06 13:39:26.125 INFO [stderr] 104 |     fn update_coeff_vec(&self, num_mines: MineCount) -> DVector<f64> {
Dec 06 13:39:26.125 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 13:39:26.125 INFO [stderr] 
Dec 06 13:39:26.125 INFO [stderr] warning: method is never used: `adjacent_indices`
Dec 06 13:39:26.125 INFO [stderr]    --> src/solver/mod.rs:109:5
Dec 06 13:39:26.125 INFO [stderr]     |
Dec 06 13:39:26.125 INFO [stderr] 109 |     fn adjacent_indices(&self, update: CountUpdate) -> Vec<usize> {
Dec 06 13:39:26.125 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 13:39:26.125 INFO [stderr] 
Dec 06 13:39:26.125 INFO [stderr] warning: function is never used: `to_signed`
Dec 06 13:39:26.125 INFO [stderr]    --> src/solver/mod.rs:131:1
Dec 06 13:39:26.125 INFO [stderr]     |
Dec 06 13:39:26.125 INFO [stderr] 131 | fn to_signed(x: usize) -> isize {
Dec 06 13:39:26.125 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 13:39:26.125 INFO [stderr] 
Dec 06 13:39:26.125 INFO [stderr] warning: function is never used: `adjacent_indices_unchecked`
Dec 06 13:39:26.125 INFO [stderr]    --> src/solver/mod.rs:137:1
Dec 06 13:39:26.125 INFO [stderr]     |
Dec 06 13:39:26.125 INFO [stderr] 137 | fn adjacent_indices_unchecked(i: isize, j: isize) -> [(isize, isize); 8] {
Dec 06 13:39:26.125 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 13:39:26.125 INFO [stderr] 
Dec 06 13:39:26.474 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.10s
Dec 06 13:39:26.478 INFO [stderr] su: No module specific data is present
Dec 06 13:39:27.726 INFO running `"docker" "inspect" "a945c5a588f1c74ce0342c1080fe53b142a1a4db91104b60bb975324eaf5fd43"`
Dec 06 13:39:28.094 INFO running `"docker" "rm" "-f" "a945c5a588f1c74ce0342c1080fe53b142a1a4db91104b60bb975324eaf5fd43"`
Dec 06 13:39:28.380 INFO [stdout] a945c5a588f1c74ce0342c1080fe53b142a1a4db91104b60bb975324eaf5fd43
Dec 06 13:39:28.382 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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"`
Dec 06 13:39:28.844 INFO [stdout] cebc948e4750b8da472e2ba74e1f6ef09032b9bac34768cc16442d5a63b4d58a
Dec 06 13:39:28.853 INFO running `"docker" "start" "-a" "cebc948e4750b8da472e2ba74e1f6ef09032b9bac34768cc16442d5a63b4d58a"`
Dec 06 13:39:29.827 INFO [stderr] usermod: no changes
Dec 06 13:39:29.886 INFO [stderr]    Compiling sweepsolve-rs v0.1.0 (/source)
Dec 06 13:39:31.023 INFO [stderr] warning: variant is never constructed: `NotMine`
Dec 06 13:39:31.023 INFO [stderr]  --> src/solver/click_result.rs:5:5
Dec 06 13:39:31.023 INFO [stderr]   |
Dec 06 13:39:31.023 INFO [stderr] 5 |     NotMine(MineCount),
Dec 06 13:39:31.023 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 06 13:39:31.023 INFO [stderr]   |
Dec 06 13:39:31.023 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 06 13:39:31.023 INFO [stderr] 
Dec 06 13:39:31.023 INFO [stderr] warning: variant is never constructed: `Mine`
Dec 06 13:39:31.023 INFO [stderr]  --> src/solver/click_result.rs:6:5
Dec 06 13:39:31.023 INFO [stderr]   |
Dec 06 13:39:31.023 INFO [stderr] 6 |     Mine,
Dec 06 13:39:31.023 INFO [stderr]   |     ^^^^
Dec 06 13:39:31.023 INFO [stderr] 
Dec 06 13:39:31.023 INFO [stderr] warning: method is never used: `new`
Dec 06 13:39:31.023 INFO [stderr]  --> src/solver/mine_count.rs:7:5
Dec 06 13:39:31.023 INFO [stderr]   |
Dec 06 13:39:31.023 INFO [stderr] 7 |     pub fn new(count: u8) -> MineCount {
Dec 06 13:39:31.023 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 13:39:31.023 INFO [stderr] 
Dec 06 13:39:31.023 INFO [stderr] warning: method is never used: `get`
Dec 06 13:39:31.023 INFO [stderr]   --> src/solver/mine_count.rs:13:5
Dec 06 13:39:31.023 INFO [stderr]    |
Dec 06 13:39:31.023 INFO [stderr] 13 |     pub fn get(&self) -> u8 {
Dec 06 13:39:31.023 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 13:39:31.023 INFO [stderr] 
Dec 06 13:39:31.023 INFO [stderr] warning: method is never used: `to_count_update`
Dec 06 13:39:31.023 INFO [stderr]   --> src/solver/update.rs:12:5
Dec 06 13:39:31.023 INFO [stderr]    |
Dec 06 13:39:31.023 INFO [stderr] 12 |     pub fn to_count_update(&self) -> Option<CountUpdate> {
Dec 06 13:39:31.023 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 13:39:31.023 INFO [stderr] 
Dec 06 13:39:31.023 INFO [stderr] warning: variant is never constructed: `Clicked`
Dec 06 13:39:31.023 INFO [stderr]  --> src/solver/tile_state.rs:6:5
Dec 06 13:39:31.023 INFO [stderr]   |
Dec 06 13:39:31.023 INFO [stderr] 6 |     Clicked(MineCount),
Dec 06 13:39:31.023 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 06 13:39:31.023 INFO [stderr] 
Dec 06 13:39:31.023 INFO [stderr] warning: variant is never constructed: `Mine`
Dec 06 13:39:31.023 INFO [stderr]  --> src/solver/tile_state.rs:7:5
Dec 06 13:39:31.023 INFO [stderr]   |
Dec 06 13:39:31.023 INFO [stderr] 7 |     Mine,
Dec 06 13:39:31.023 INFO [stderr]   |     ^^^^
Dec 06 13:39:31.023 INFO [stderr] 
Dec 06 13:39:31.023 INFO [stderr] warning: struct is never constructed: `Solver`
Dec 06 13:39:31.023 INFO [stderr]   --> src/solver/mod.rs:16:1
Dec 06 13:39:31.023 INFO [stderr]    |
Dec 06 13:39:31.023 INFO [stderr] 16 | pub struct Solver {
Dec 06 13:39:31.023 INFO [stderr]    | ^^^^^^^^^^^^^^^^^
Dec 06 13:39:31.023 INFO [stderr] 
Dec 06 13:39:31.023 INFO [stderr] warning: method is never used: `new`
Dec 06 13:39:31.023 INFO [stderr]   --> src/solver/mod.rs:24:5
Dec 06 13:39:31.023 INFO [stderr]    |
Dec 06 13:39:31.023 INFO [stderr] 24 |     pub fn new(width: usize, height: usize, num_mines: usize) -> Solver {
Dec 06 13:39:31.023 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 13:39:31.023 INFO [stderr] 
Dec 06 13:39:31.023 INFO [stderr] warning: method is never used: `next_move`
Dec 06 13:39:31.023 INFO [stderr]   --> src/solver/mod.rs:36:5
Dec 06 13:39:31.023 INFO [stderr]    |
Dec 06 13:39:31.023 INFO [stderr] 36 |     pub fn next_move(&self) -> Option<(usize, usize)> {
Dec 06 13:39:31.023 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 13:39:31.023 INFO [stderr] 
Dec 06 13:39:31.023 INFO [stderr] warning: method is never used: `update_board`
Dec 06 13:39:31.023 INFO [stderr]   --> src/solver/mod.rs:54:5
Dec 06 13:39:31.023 INFO [stderr]    |
Dec 06 13:39:31.023 INFO [stderr] 54 |     pub fn update_board(&mut self, update: Update) -> bool {
Dec 06 13:39:31.023 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 13:39:31.023 INFO [stderr] 
Dec 06 13:39:31.023 INFO [stderr] warning: method is never used: `get_unclicked_probabilities`
Dec 06 13:39:31.023 INFO [stderr]   --> src/solver/mod.rs:69:5
Dec 06 13:39:31.023 INFO [stderr]    |
Dec 06 13:39:31.023 INFO [stderr] 69 |     fn get_unclicked_probabilities(&self) -> Vec<(usize, f64)> {
Dec 06 13:39:31.023 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 13:39:31.024 INFO [stderr] 
Dec 06 13:39:31.024 INFO [stderr] warning: method is never used: `do_update_board`
Dec 06 13:39:31.024 INFO [stderr]   --> src/solver/mod.rs:78:5
Dec 06 13:39:31.024 INFO [stderr]    |
Dec 06 13:39:31.024 INFO [stderr] 78 |     fn do_update_board(&mut self, update: CountUpdate) {
Dec 06 13:39:31.024 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 13:39:31.024 INFO [stderr] 
Dec 06 13:39:31.024 INFO [stderr] warning: method is never used: `update_coeff_mtx`
Dec 06 13:39:31.024 INFO [stderr]   --> src/solver/mod.rs:89:5
Dec 06 13:39:31.024 INFO [stderr]    |
Dec 06 13:39:31.024 INFO [stderr] 89 |     fn update_coeff_mtx(&self, update: CountUpdate) -> DMatrix<f64> {
Dec 06 13:39:31.024 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 13:39:31.024 INFO [stderr] 
Dec 06 13:39:31.024 INFO [stderr] warning: method is never used: `update_coeff_vec`
Dec 06 13:39:31.024 INFO [stderr]    --> src/solver/mod.rs:104:5
Dec 06 13:39:31.024 INFO [stderr]     |
Dec 06 13:39:31.024 INFO [stderr] 104 |     fn update_coeff_vec(&self, num_mines: MineCount) -> DVector<f64> {
Dec 06 13:39:31.024 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 13:39:31.024 INFO [stderr] 
Dec 06 13:39:31.024 INFO [stderr] warning: method is never used: `adjacent_indices`
Dec 06 13:39:31.024 INFO [stderr]    --> src/solver/mod.rs:109:5
Dec 06 13:39:31.024 INFO [stderr]     |
Dec 06 13:39:31.024 INFO [stderr] 109 |     fn adjacent_indices(&self, update: CountUpdate) -> Vec<usize> {
Dec 06 13:39:31.024 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 13:39:31.024 INFO [stderr] 
Dec 06 13:39:31.024 INFO [stderr] warning: function is never used: `to_signed`
Dec 06 13:39:31.024 INFO [stderr]    --> src/solver/mod.rs:131:1
Dec 06 13:39:31.024 INFO [stderr]     |
Dec 06 13:39:31.024 INFO [stderr] 131 | fn to_signed(x: usize) -> isize {
Dec 06 13:39:31.024 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 13:39:31.024 INFO [stderr] 
Dec 06 13:39:31.024 INFO [stderr] warning: function is never used: `adjacent_indices_unchecked`
Dec 06 13:39:31.024 INFO [stderr]    --> src/solver/mod.rs:137:1
Dec 06 13:39:31.024 INFO [stderr]     |
Dec 06 13:39:31.024 INFO [stderr] 137 | fn adjacent_indices_unchecked(i: isize, j: isize) -> [(isize, isize); 8] {
Dec 06 13:39:31.024 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 13:39:31.024 INFO [stderr] 
Dec 06 13:39:31.318 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.48s
Dec 06 13:39:31.322 INFO [stderr] su: No module specific data is present
Dec 06 13:39:31.935 INFO running `"docker" "inspect" "cebc948e4750b8da472e2ba74e1f6ef09032b9bac34768cc16442d5a63b4d58a"`
Dec 06 13:39:32.066 INFO running `"docker" "rm" "-f" "cebc948e4750b8da472e2ba74e1f6ef09032b9bac34768cc16442d5a63b4d58a"`
Dec 06 13:39:32.295 INFO [stdout] cebc948e4750b8da472e2ba74e1f6ef09032b9bac34768cc16442d5a63b4d58a
Dec 06 13:39:32.298 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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"`
Dec 06 13:39:32.731 INFO [stdout] 90a2c06ee75b6d800d8f9eca8635c994ae74553f452b24a552f3ae4e5c546c40
Dec 06 13:39:32.734 INFO running `"docker" "start" "-a" "90a2c06ee75b6d800d8f9eca8635c994ae74553f452b24a552f3ae4e5c546c40"`
Dec 06 13:39:33.797 INFO [stderr] usermod: no changes
Dec 06 13:39:33.854 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
Dec 06 13:39:33.866 INFO [stderr]      Running /target/debug/deps/sweepsolve_rs-349b1d6cb059da49
Dec 06 13:39:33.869 INFO [stdout] 
Dec 06 13:39:33.869 INFO [stdout] running 0 tests
Dec 06 13:39:33.870 INFO [stdout] 
Dec 06 13:39:33.870 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 13:39:33.870 INFO [stdout] 
Dec 06 13:39:33.872 INFO [stderr] su: No module specific data is present
Dec 06 13:39:34.214 INFO running `"docker" "inspect" "90a2c06ee75b6d800d8f9eca8635c994ae74553f452b24a552f3ae4e5c546c40"`
Dec 06 13:39:34.291 INFO running `"docker" "rm" "-f" "90a2c06ee75b6d800d8f9eca8635c994ae74553f452b24a552f3ae4e5c546c40"`
Dec 06 13:39:34.416 INFO [stdout] 90a2c06ee75b6d800d8f9eca8635c994ae74553f452b24a552f3ae4e5c546c40