[INFO] cloning repository https://github.com/nkoppel/sudoku-solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nkoppel/sudoku-solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnkoppel%2Fsudoku-solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnkoppel%2Fsudoku-solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f3d3e3be6823aa8b1c0df59beb9068b54f884d23
[INFO] checking nkoppel/sudoku-solver against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnkoppel%2Fsudoku-solver" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nkoppel/sudoku-solver on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nkoppel/sudoku-solver
[INFO] finished tweaking git repo https://github.com/nkoppel/sudoku-solver
[INFO] tweaked toml for git repo https://github.com/nkoppel/sudoku-solver written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/nkoppel/sudoku-solver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 09415299078c5e81aea34dd864047bd47a3728f0ba99eaeed5a9737f8643d99e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "09415299078c5e81aea34dd864047bd47a3728f0ba99eaeed5a9737f8643d99e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09415299078c5e81aea34dd864047bd47a3728f0ba99eaeed5a9737f8643d99e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09415299078c5e81aea34dd864047bd47a3728f0ba99eaeed5a9737f8643d99e", kill_on_drop: false }`
[INFO] [stdout] 09415299078c5e81aea34dd864047bd47a3728f0ba99eaeed5a9737f8643d99e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9dbd28c7bf019fce574cf319edd022954f9528c92979c1dfbe4306f9b18f804c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9dbd28c7bf019fce574cf319edd022954f9528c92979c1dfbe4306f9b18f804c", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Checking sudoku-solver v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/solve.rs (4 fixes)
[INFO] [stdout] warning: field is never read: `groups`
[INFO] [stdout]    --> src/solve.rs:194:5
[INFO] [stdout]     |
[INFO] [stdout] 194 |     groups: [u128; 27],
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `groups`
[INFO] [stdout]    --> src/solve.rs:194:5
[INFO] [stdout]     |
[INFO] [stdout] 194 |     groups: [u128; 27],
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Migrating benches/benches.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]        Fixed benches/benches.rs (2 fixes)
[INFO] [stderr]        Fixed src/main.rs (2 fixes)
[INFO] [stdout] warning: field is never read: `groups`
[INFO] [stdout]    --> benches/../src/solve.rs:194:5
[INFO] [stdout]     |
[INFO] [stdout] 194 |     groups: [u128; 27],
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `test`
[INFO] [stdout]    --> benches/../src/solve.rs:344:12
[INFO] [stdout]     |
[INFO] [stdout] 344 |     pub fn test(&mut self, puzzle: &str, solution: &str) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_board`
[INFO] [stdout]  --> benches/../src/puzzle.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn print_board(b: u128) {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_string`
[INFO] [stdout]   --> benches/../src/puzzle.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn to_string(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `NEW_BOARD`
[INFO] [stdout]   --> src/puzzle.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub const NEW_BOARD: u128 = 0x1_fffff_fffff_fffff_fffff;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/puzzle.rs:25:18
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub const fn new() -> Self {
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_str`
[INFO] [stdout]   --> src/puzzle.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn from_str(s: &str) -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_string`
[INFO] [stdout]   --> src/puzzle.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn to_string(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_solved`
[INFO] [stdout]   --> src/puzzle.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn get_solved(&self) -> u128 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_new_solved`
[INFO] [stdout]   --> src/puzzle.rs:95:12
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn get_new_solved(&mut self) -> u128 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_valid`
[INFO] [stdout]    --> src/puzzle.rs:101:12
[INFO] [stdout]     |
[INFO] [stdout] 101 |     pub fn is_valid(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_square_options`
[INFO] [stdout]    --> src/puzzle.rs:111:12
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn get_square_options(&self) -> [u128; 9] {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `ROW`
[INFO] [stdout]  --> src/solve.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub const ROW: u128 = 0o777;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BOX`
[INFO] [stdout]  --> src/solve.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub const BOX: u128 = 0o7007007;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `quick_columns`
[INFO] [stdout]   --> src/solve.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn quick_columns(mut board: u128) -> u128 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `quick_rows`
[INFO] [stdout]   --> src/solve.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn quick_rows(mut board: u128) -> u128 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `quick_boxes`
[INFO] [stdout]   --> src/solve.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn quick_boxes(mut board: u128) -> u128 {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `quick_vert_triads`
[INFO] [stdout]    --> src/solve.rs:113:8
[INFO] [stdout]     |
[INFO] [stdout] 113 | pub fn quick_vert_triads(mut board: u128) -> (u128, u128) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gen_group_table`
[INFO] [stdout]    --> src/solve.rs:143:8
[INFO] [stdout]     |
[INFO] [stdout] 143 | pub fn gen_group_table() -> [u128; 27] {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gen_square_table`
[INFO] [stdout]    --> src/solve.rs:155:4
[INFO] [stdout]     |
[INFO] [stdout] 155 | fn gen_square_table() -> [u128; 81] {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solver`
[INFO] [stdout]    --> src/solve.rs:191:12
[INFO] [stdout]     |
[INFO] [stdout] 191 | pub struct Solver {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/solve.rs:199:12
[INFO] [stdout]     |
[INFO] [stdout] 199 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `slow_is_valid`
[INFO] [stdout]    --> src/solve.rs:208:12
[INFO] [stdout]     |
[INFO] [stdout] 208 |     pub fn slow_is_valid(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update`
[INFO] [stdout]    --> src/solve.rs:226:12
[INFO] [stdout]     |
[INFO] [stdout] 226 |     pub fn update(&mut self) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `guess`
[INFO] [stdout]    --> src/solve.rs:291:12
[INFO] [stdout]     |
[INFO] [stdout] 291 |     pub fn guess(&mut self) -> (u8, u8) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `solve`
[INFO] [stdout]    --> src/solve.rs:315:12
[INFO] [stdout]     |
[INFO] [stdout] 315 |     pub fn solve(&mut self) -> bool {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `test`
[INFO] [stdout]    --> src/solve.rs:344:12
[INFO] [stdout]     |
[INFO] [stdout] 344 |     pub fn test(&mut self, puzzle: &str, solution: &str) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_from_lines`
[INFO] [stdout]   --> src/main.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn test_from_lines<T>(lines: Lines<T>)
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `solve_from_lines`
[INFO] [stdout]   --> src/main.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn solve_from_lines<T>(lines: Lines<T>)
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `NEW_BOARD`
[INFO] [stdout]   --> src/puzzle.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub const NEW_BOARD: u128 = 0x1_fffff_fffff_fffff_fffff;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/puzzle.rs:25:18
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub const fn new() -> Self {
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_str`
[INFO] [stdout]   --> src/puzzle.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn from_str(s: &str) -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_string`
[INFO] [stdout]   --> src/puzzle.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn to_string(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_solved`
[INFO] [stdout]   --> src/puzzle.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn get_solved(&self) -> u128 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_new_solved`
[INFO] [stdout]   --> src/puzzle.rs:95:12
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn get_new_solved(&mut self) -> u128 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_valid`
[INFO] [stdout]    --> src/puzzle.rs:101:12
[INFO] [stdout]     |
[INFO] [stdout] 101 |     pub fn is_valid(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_square_options`
[INFO] [stdout]    --> src/puzzle.rs:111:12
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn get_square_options(&self) -> [u128; 9] {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `ROW`
[INFO] [stdout]  --> src/solve.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub const ROW: u128 = 0o777;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BOX`
[INFO] [stdout]  --> src/solve.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub const BOX: u128 = 0o7007007;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `quick_columns`
[INFO] [stdout]   --> src/solve.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn quick_columns(mut board: u128) -> u128 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `quick_rows`
[INFO] [stdout]   --> src/solve.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn quick_rows(mut board: u128) -> u128 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `quick_boxes`
[INFO] [stdout]   --> src/solve.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn quick_boxes(mut board: u128) -> u128 {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `quick_vert_triads`
[INFO] [stdout]    --> src/solve.rs:113:8
[INFO] [stdout]     |
[INFO] [stdout] 113 | pub fn quick_vert_triads(mut board: u128) -> (u128, u128) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gen_group_table`
[INFO] [stdout]    --> src/solve.rs:143:8
[INFO] [stdout]     |
[INFO] [stdout] 143 | pub fn gen_group_table() -> [u128; 27] {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gen_square_table`
[INFO] [stdout]    --> src/solve.rs:155:4
[INFO] [stdout]     |
[INFO] [stdout] 155 | fn gen_square_table() -> [u128; 81] {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solver`
[INFO] [stdout]    --> src/solve.rs:191:12
[INFO] [stdout]     |
[INFO] [stdout] 191 | pub struct Solver {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/solve.rs:199:12
[INFO] [stdout]     |
[INFO] [stdout] 199 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `slow_is_valid`
[INFO] [stdout]    --> src/solve.rs:208:12
[INFO] [stdout]     |
[INFO] [stdout] 208 |     pub fn slow_is_valid(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update`
[INFO] [stdout]    --> src/solve.rs:226:12
[INFO] [stdout]     |
[INFO] [stdout] 226 |     pub fn update(&mut self) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `guess`
[INFO] [stdout]    --> src/solve.rs:291:12
[INFO] [stdout]     |
[INFO] [stdout] 291 |     pub fn guess(&mut self) -> (u8, u8) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `solve`
[INFO] [stdout]    --> src/solve.rs:315:12
[INFO] [stdout]     |
[INFO] [stdout] 315 |     pub fn solve(&mut self) -> bool {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `test`
[INFO] [stdout]    --> src/solve.rs:344:12
[INFO] [stdout]     |
[INFO] [stdout] 344 |     pub fn test(&mut self, puzzle: &str, solution: &str) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_from_lines`
[INFO] [stdout]   --> src/main.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn test_from_lines<T>(lines: Lines<T>)
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `solve_from_lines`
[INFO] [stdout]   --> src/main.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn solve_from_lines<T>(lines: Lines<T>)
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.31s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking sudoku-solver v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: field is never read: `groups`
[INFO] [stdout]    --> src/solve.rs:194:5
[INFO] [stdout]     |
[INFO] [stdout] 194 |     groups: [u128; 27],
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `groups`
[INFO] [stdout]    --> src/solve.rs:194:5
[INFO] [stdout]     |
[INFO] [stdout] 194 |     groups: [u128; 27],
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `NEW_BOARD`
[INFO] [stdout]   --> src/puzzle.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub const NEW_BOARD: u128 = 0x1_fffff_fffff_fffff_fffff;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/puzzle.rs:25:18
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub const fn new() -> Self {
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_str`
[INFO] [stdout]   --> src/puzzle.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn from_str(s: &str) -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_string`
[INFO] [stdout]   --> src/puzzle.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn to_string(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_solved`
[INFO] [stdout]   --> src/puzzle.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn get_solved(&self) -> u128 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_new_solved`
[INFO] [stdout]   --> src/puzzle.rs:95:12
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn get_new_solved(&mut self) -> u128 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_valid`
[INFO] [stdout]    --> src/puzzle.rs:101:12
[INFO] [stdout]     |
[INFO] [stdout] 101 |     pub fn is_valid(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_square_options`
[INFO] [stdout]    --> src/puzzle.rs:111:12
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn get_square_options(&self) -> [u128; 9] {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `ROW`
[INFO] [stdout]  --> src/solve.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub const ROW: u128 = 0o777;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BOX`
[INFO] [stdout]  --> src/solve.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub const BOX: u128 = 0o7007007;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `quick_columns`
[INFO] [stdout]   --> src/solve.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn quick_columns(mut board: u128) -> u128 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `quick_rows`
[INFO] [stdout]   --> src/solve.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn quick_rows(mut board: u128) -> u128 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `quick_boxes`
[INFO] [stdout]   --> src/solve.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn quick_boxes(mut board: u128) -> u128 {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `quick_vert_triads`
[INFO] [stdout]    --> src/solve.rs:113:8
[INFO] [stdout]     |
[INFO] [stdout] 113 | pub fn quick_vert_triads(mut board: u128) -> (u128, u128) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gen_group_table`
[INFO] [stdout]    --> src/solve.rs:143:8
[INFO] [stdout]     |
[INFO] [stdout] 143 | pub fn gen_group_table() -> [u128; 27] {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gen_square_table`
[INFO] [stdout]    --> src/solve.rs:155:4
[INFO] [stdout]     |
[INFO] [stdout] 155 | fn gen_square_table() -> [u128; 81] {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solver`
[INFO] [stdout]    --> src/solve.rs:191:12
[INFO] [stdout]     |
[INFO] [stdout] 191 | pub struct Solver {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/solve.rs:199:12
[INFO] [stdout]     |
[INFO] [stdout] 199 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `slow_is_valid`
[INFO] [stdout]    --> src/solve.rs:208:12
[INFO] [stdout]     |
[INFO] [stdout] 208 |     pub fn slow_is_valid(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update`
[INFO] [stdout]    --> src/solve.rs:226:12
[INFO] [stdout]     |
[INFO] [stdout] 226 |     pub fn update(&mut self) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `guess`
[INFO] [stdout]    --> src/solve.rs:291:12
[INFO] [stdout]     |
[INFO] [stdout] 291 |     pub fn guess(&mut self) -> (u8, u8) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `solve`
[INFO] [stdout]    --> src/solve.rs:315:12
[INFO] [stdout]     |
[INFO] [stdout] 315 |     pub fn solve(&mut self) -> bool {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `test`
[INFO] [stdout]    --> src/solve.rs:344:12
[INFO] [stdout]     |
[INFO] [stdout] 344 |     pub fn test(&mut self, puzzle: &str, solution: &str) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_from_lines`
[INFO] [stdout]   --> src/main.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn test_from_lines<T>(lines: Lines<T>)
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `solve_from_lines`
[INFO] [stdout]   --> src/main.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn solve_from_lines<T>(lines: Lines<T>)
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `NEW_BOARD`
[INFO] [stdout]   --> src/puzzle.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub const NEW_BOARD: u128 = 0x1_fffff_fffff_fffff_fffff;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/puzzle.rs:25:18
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub const fn new() -> Self {
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_str`
[INFO] [stdout]   --> src/puzzle.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn from_str(s: &str) -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_string`
[INFO] [stdout]   --> src/puzzle.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn to_string(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_solved`
[INFO] [stdout]   --> src/puzzle.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn get_solved(&self) -> u128 {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_new_solved`
[INFO] [stdout]   --> src/puzzle.rs:95:12
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn get_new_solved(&mut self) -> u128 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_valid`
[INFO] [stdout]    --> src/puzzle.rs:101:12
[INFO] [stdout]     |
[INFO] [stdout] 101 |     pub fn is_valid(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_square_options`
[INFO] [stdout]    --> src/puzzle.rs:111:12
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn get_square_options(&self) -> [u128; 9] {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `ROW`
[INFO] [stdout]  --> src/solve.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub const ROW: u128 = 0o777;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BOX`
[INFO] [stdout]  --> src/solve.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub const BOX: u128 = 0o7007007;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `quick_columns`
[INFO] [stdout]   --> src/solve.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn quick_columns(mut board: u128) -> u128 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `quick_rows`
[INFO] [stdout]   --> src/solve.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn quick_rows(mut board: u128) -> u128 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `quick_boxes`
[INFO] [stdout]   --> src/solve.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub fn quick_boxes(mut board: u128) -> u128 {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `quick_vert_triads`
[INFO] [stdout]    --> src/solve.rs:113:8
[INFO] [stdout]     |
[INFO] [stdout] 113 | pub fn quick_vert_triads(mut board: u128) -> (u128, u128) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gen_group_table`
[INFO] [stdout]    --> src/solve.rs:143:8
[INFO] [stdout]     |
[INFO] [stdout] 143 | pub fn gen_group_table() -> [u128; 27] {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gen_square_table`
[INFO] [stdout]    --> src/solve.rs:155:4
[INFO] [stdout]     |
[INFO] [stdout] 155 | fn gen_square_table() -> [u128; 81] {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solver`
[INFO] [stdout]    --> src/solve.rs:191:12
[INFO] [stdout]     |
[INFO] [stdout] 191 | pub struct Solver {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/solve.rs:199:12
[INFO] [stdout]     |
[INFO] [stdout] 199 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `slow_is_valid`
[INFO] [stdout]    --> src/solve.rs:208:12
[INFO] [stdout]     |
[INFO] [stdout] 208 |     pub fn slow_is_valid(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update`
[INFO] [stdout]    --> src/solve.rs:226:12
[INFO] [stdout]     |
[INFO] [stdout] 226 |     pub fn update(&mut self) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `guess`
[INFO] [stdout]    --> src/solve.rs:291:12
[INFO] [stdout]     |
[INFO] [stdout] 291 |     pub fn guess(&mut self) -> (u8, u8) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `solve`
[INFO] [stdout]    --> src/solve.rs:315:12
[INFO] [stdout]     |
[INFO] [stdout] 315 |     pub fn solve(&mut self) -> bool {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `test`
[INFO] [stdout]    --> src/solve.rs:344:12
[INFO] [stdout]     |
[INFO] [stdout] 344 |     pub fn test(&mut self, puzzle: &str, solution: &str) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_from_lines`
[INFO] [stdout]   --> src/main.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn test_from_lines<T>(lines: Lines<T>)
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `solve_from_lines`
[INFO] [stdout]   --> src/main.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn solve_from_lines<T>(lines: Lines<T>)
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `groups`
[INFO] [stdout]    --> benches/../src/solve.rs:194:5
[INFO] [stdout]     |
[INFO] [stdout] 194 |     groups: [u128; 27],
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `test`
[INFO] [stdout]    --> benches/../src/solve.rs:344:12
[INFO] [stdout]     |
[INFO] [stdout] 344 |     pub fn test(&mut self, puzzle: &str, solution: &str) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_board`
[INFO] [stdout]  --> benches/../src/puzzle.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn print_board(b: u128) {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_string`
[INFO] [stdout]   --> benches/../src/puzzle.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn to_string(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 25 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.25s
[INFO] running `Command { std: "docker" "inspect" "9dbd28c7bf019fce574cf319edd022954f9528c92979c1dfbe4306f9b18f804c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dbd28c7bf019fce574cf319edd022954f9528c92979c1dfbe4306f9b18f804c", kill_on_drop: false }`
[INFO] [stdout] 9dbd28c7bf019fce574cf319edd022954f9528c92979c1dfbe4306f9b18f804c