[INFO] updating cached repository fredrikpe/rustdoku
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/fredrikpe/rustdoku
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/fredrikpe/rustdoku" "work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/fredrikpe/rustdoku"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/fredrikpe/rustdoku'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/fredrikpe/rustdoku" "work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/fredrikpe/rustdoku"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/fredrikpe/rustdoku'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] dbfaaa58529d10033eb69b9c6fb2e5e9db48dc82
[INFO] sha for GitHub repo fredrikpe/rustdoku: dbfaaa58529d10033eb69b9c6fb2e5e9db48dc82
[INFO] validating manifest of fredrikpe/rustdoku on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of fredrikpe/rustdoku on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing fredrikpe/rustdoku
[INFO] finished frobbing fredrikpe/rustdoku
[INFO] frobbed toml for fredrikpe/rustdoku written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/fredrikpe/rustdoku/Cargo.toml
[INFO] started frobbing fredrikpe/rustdoku
[INFO] finished frobbing fredrikpe/rustdoku
[INFO] frobbed toml for fredrikpe/rustdoku written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/fredrikpe/rustdoku/Cargo.toml
[INFO] crate fredrikpe/rustdoku already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/crater-raid/crater/work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/fredrikpe/rustdoku/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking fredrikpe/rustdoku against try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b for pr-59199
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-1/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/fredrikpe/rustdoku:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 8f25684c478417286e858456f8874fc40d8df94214cce5533210afab6d9b45f7
[INFO] running `"docker" "start" "-a" "8f25684c478417286e858456f8874fc40d8df94214cce5533210afab6d9b45f7"`
[INFO] [stderr]     Checking rustdoku v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::thread::sleep`
[INFO] [stderr]  --> src/views/board_view.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::thread::sleep;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]  --> src/views/board_view.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::time::Duration;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Cell`
[INFO] [stderr]   --> src/views/board_view.rs:12:22
[INFO] [stderr]    |
[INFO] [stderr] 12 | use ::logic::{Board, Cell};
[INFO] [stderr]    |                      ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Point`
[INFO] [stderr]  --> src/views/main_menu.rs:3:20
[INFO] [stderr]   |
[INFO] [stderr] 3 | use ::sdl2::rect::{Point, Rect};
[INFO] [stderr]   |                    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread::sleep`
[INFO] [stderr]  --> src/views/board_view.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::thread::sleep;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]  --> src/views/board_view.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::time::Duration;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Cell`
[INFO] [stderr]   --> src/views/board_view.rs:12:22
[INFO] [stderr]    |
[INFO] [stderr] 12 | use ::logic::{Board, Cell};
[INFO] [stderr]    |                      ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Point`
[INFO] [stderr]  --> src/views/main_menu.rs:3:20
[INFO] [stderr]   |
[INFO] [stderr] 3 | use ::sdl2::rect::{Point, Rect};
[INFO] [stderr]   |                    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `fps` is assigned to, but never used
[INFO] [stderr]    --> src/phi/mod.rs:102:13
[INFO] [stderr]     |
[INFO] [stderr] 102 |     let mut fps = 0u16;
[INFO] [stderr]     |             ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr]     = note: consider using `_fps` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `phi`
[INFO] [stderr]   --> src/views/board_view.rs:50:16
[INFO] [stderr]    |
[INFO] [stderr] 50 |     pub fn new(phi: &mut Phi, board: i32) -> BoardView {
[INFO] [stderr]    |                ^^^ help: consider prefixing with an underscore: `_phi`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/views/board_view.rs:78:35
[INFO] [stderr]    |
[INFO] [stderr] 78 |             Some(Move::IMove(pos, i)) => self.board.remove(pos),
[INFO] [stderr]    |                                   ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `elapsed`
[INFO] [stderr]    --> src/views/board_view.rs:102:41
[INFO] [stderr]     |
[INFO] [stderr] 102 |     fn render(&mut self, phi: &mut Phi, elapsed: f64) -> ViewAction {
[INFO] [stderr]     |                                         ^^^^^^^ help: consider prefixing with an underscore: `_elapsed`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `phi`
[INFO] [stderr]   --> src/views/main_menu.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn new(phi: &mut Phi, label: &'static str, func: Box<Fn(&mut Phi) -> ViewAction>) -> Action {
[INFO] [stderr]    |            ^^^ help: consider prefixing with an underscore: `_phi`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `phi`
[INFO] [stderr]   --> src/views/main_menu.rs:33:52
[INFO] [stderr]    |
[INFO] [stderr] 33 |                 Action::new(phi, "Quit", Box::new(|phi| {
[INFO] [stderr]    |                                                    ^^^ help: consider prefixing with an underscore: `_phi`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `elapsed`
[INFO] [stderr]   --> src/views/main_menu.rs:44:41
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn render(&mut self, phi: &mut Phi, elapsed: f64) -> ViewAction {
[INFO] [stderr]    |                                         ^^^^^^^ help: consider prefixing with an underscore: `_elapsed`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `fps` is assigned to, but never used
[INFO] [stderr]    --> src/phi/mod.rs:102:13
[INFO] [stderr]     |
[INFO] [stderr] 102 |     let mut fps = 0u16;
[INFO] [stderr]     |             ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr]     = note: consider using `_fps` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `phi`
[INFO] [stderr]   --> src/views/board_view.rs:50:16
[INFO] [stderr]    |
[INFO] [stderr] 50 |     pub fn new(phi: &mut Phi, board: i32) -> BoardView {
[INFO] [stderr]    |                ^^^ help: consider prefixing with an underscore: `_phi`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/views/board_view.rs:78:35
[INFO] [stderr]    |
[INFO] [stderr] 78 |             Some(Move::IMove(pos, i)) => self.board.remove(pos),
[INFO] [stderr]    |                                   ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `elapsed`
[INFO] [stderr]    --> src/views/board_view.rs:102:41
[INFO] [stderr]     |
[INFO] [stderr] 102 |     fn render(&mut self, phi: &mut Phi, elapsed: f64) -> ViewAction {
[INFO] [stderr]     |                                         ^^^^^^^ help: consider prefixing with an underscore: `_elapsed`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `phi`
[INFO] [stderr]   --> src/views/main_menu.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn new(phi: &mut Phi, label: &'static str, func: Box<Fn(&mut Phi) -> ViewAction>) -> Action {
[INFO] [stderr]    |            ^^^ help: consider prefixing with an underscore: `_phi`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `phi`
[INFO] [stderr]   --> src/views/main_menu.rs:33:52
[INFO] [stderr]    |
[INFO] [stderr] 33 |                 Action::new(phi, "Quit", Box::new(|phi| {
[INFO] [stderr]    |                                                    ^^^ help: consider prefixing with an underscore: `_phi`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `elapsed`
[INFO] [stderr]   --> src/views/main_menu.rs:44:41
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn render(&mut self, phi: &mut Phi, elapsed: f64) -> ViewAction {
[INFO] [stderr]    |                                         ^^^^^^^ help: consider prefixing with an underscore: `_elapsed`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `MenuView`
[INFO] [stderr]   --> src/views/board_view.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub struct MenuView;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Off`
[INFO] [stderr]   --> src/views/board_view.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     Off     = 0,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Marks`
[INFO] [stderr]   --> src/views/board_view.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     Marks   = 1,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `OCEAN`
[INFO] [stderr]   --> src/views/settings.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub const OCEAN    : Color = Color::RGB(41,94,255);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SKYE`
[INFO] [stderr]   --> src/views/settings.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub const SKYE     : Color = Color::RGB(102,140,255);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PURPLE`
[INFO] [stderr]   --> src/views/settings.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub const PURPLE   : Color = Color::RGB(140,102,255);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PINK1`
[INFO] [stderr]   --> src/views/settings.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub const PINK1    : Color = Color::RGB(255,102,217);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PINK2`
[INFO] [stderr]   --> src/views/settings.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub const PINK2    : Color = Color::RGB(255,102,140);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `YELLOW`
[INFO] [stderr]   --> src/views/settings.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub const YELLOW   : Color = Color::RGB(255,201,41);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `ORANGE`
[INFO] [stderr]   --> src/views/settings.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub const ORANGE   : Color = Color::RGB(234,176,0);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `GREEN`
[INFO] [stderr]   --> src/views/settings.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub const GREEN    : Color = Color::RGB(102,255,140);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `GRASS`
[INFO] [stderr]   --> src/views/settings.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub const GRASS    : Color = Color::RGB(217,255,102);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Step`
[INFO] [stderr]  --> src/logic/solver.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct Step {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/logic/solver.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn new(num: i32, pos: usize) -> Step {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `unique_candidate`
[INFO] [stderr]   --> src/logic/solver.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub fn unique_candidate(b: &Board) -> Option<Step> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `unique`
[INFO] [stderr]   --> src/logic/solver.rs:41:1
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn unique(area: Vec<usize>, b: &Board) -> Option<Step> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `fill_board`
[INFO] [stderr]   --> src/logic/board.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 89 |     pub fn fill_board(&mut self, board: Vec<i32>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_solved`
[INFO] [stderr]    --> src/logic/board.rs:100:5
[INFO] [stderr]     |
[INFO] [stderr] 100 |     pub fn is_solved(&self) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_representative`
[INFO] [stderr]    --> src/logic/board.rs:173:5
[INFO] [stderr]     |
[INFO] [stderr] 173 |     pub fn get_representative(&self) -> Vec<usize> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `print_board`
[INFO] [stderr]    --> src/logic/board.rs:177:5
[INFO] [stderr]     |
[INFO] [stderr] 177 |     pub fn print_board(&self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `BIGNUM` should have a snake case name
[INFO] [stderr]   --> src/views/settings.rs:29:9
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub BIGNUM: Font,
[INFO] [stderr]    |         ^^^^^^ help: convert the identifier to snake case: `bignum`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `SMALLNUM` should have a snake case name
[INFO] [stderr]   --> src/views/settings.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub SMALLNUM: Font,
[INFO] [stderr]    |         ^^^^^^^^ help: convert the identifier to snake case: `smallnum`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `BIGFONT` should have a snake case name
[INFO] [stderr]   --> src/views/settings.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub BIGFONT: Font,
[INFO] [stderr]    |         ^^^^^^^ help: convert the identifier to snake case: `bigfont`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `SMALLFONT` should have a snake case name
[INFO] [stderr]   --> src/views/settings.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub SMALLFONT: Font,
[INFO] [stderr]    |         ^^^^^^^^^ help: convert the identifier to snake case: `smallfont`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `MenuView`
[INFO] [stderr]   --> src/views/board_view.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub struct MenuView;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Off`
[INFO] [stderr]   --> src/views/board_view.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     Off     = 0,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Marks`
[INFO] [stderr]   --> src/views/board_view.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     Marks   = 1,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `OCEAN`
[INFO] [stderr]   --> src/views/settings.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub const OCEAN    : Color = Color::RGB(41,94,255);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `SKYE`
[INFO] [stderr]   --> src/views/settings.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub const SKYE     : Color = Color::RGB(102,140,255);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PURPLE`
[INFO] [stderr]   --> src/views/settings.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub const PURPLE   : Color = Color::RGB(140,102,255);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PINK1`
[INFO] [stderr]   --> src/views/settings.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub const PINK1    : Color = Color::RGB(255,102,217);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `PINK2`
[INFO] [stderr]   --> src/views/settings.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub const PINK2    : Color = Color::RGB(255,102,140);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `YELLOW`
[INFO] [stderr]   --> src/views/settings.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub const YELLOW   : Color = Color::RGB(255,201,41);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `ORANGE`
[INFO] [stderr]   --> src/views/settings.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub const ORANGE   : Color = Color::RGB(234,176,0);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `GREEN`
[INFO] [stderr]   --> src/views/settings.rs:22:1
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub const GREEN    : Color = Color::RGB(102,255,140);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `GRASS`
[INFO] [stderr]   --> src/views/settings.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub const GRASS    : Color = Color::RGB(217,255,102);
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Step`
[INFO] [stderr]  --> src/logic/solver.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct Step {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/logic/solver.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn new(num: i32, pos: usize) -> Step {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `unique_candidate`
[INFO] [stderr]   --> src/logic/solver.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub fn unique_candidate(b: &Board) -> Option<Step> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `unique`
[INFO] [stderr]   --> src/logic/solver.rs:41:1
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn unique(area: Vec<usize>, b: &Board) -> Option<Step> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `fill_board`
[INFO] [stderr]   --> src/logic/board.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 89 |     pub fn fill_board(&mut self, board: Vec<i32>) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_solved`
[INFO] [stderr]    --> src/logic/board.rs:100:5
[INFO] [stderr]     |
[INFO] [stderr] 100 |     pub fn is_solved(&self) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_representative`
[INFO] [stderr]    --> src/logic/board.rs:173:5
[INFO] [stderr]     |
[INFO] [stderr] 173 |     pub fn get_representative(&self) -> Vec<usize> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `print_board`
[INFO] [stderr]    --> src/logic/board.rs:177:5
[INFO] [stderr]     |
[INFO] [stderr] 177 |     pub fn print_board(&self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `BIGNUM` should have a snake case name
[INFO] [stderr]   --> src/views/settings.rs:29:9
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub BIGNUM: Font,
[INFO] [stderr]    |         ^^^^^^ help: convert the identifier to snake case: `bignum`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `SMALLNUM` should have a snake case name
[INFO] [stderr]   --> src/views/settings.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub SMALLNUM: Font,
[INFO] [stderr]    |         ^^^^^^^^ help: convert the identifier to snake case: `smallnum`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `BIGFONT` should have a snake case name
[INFO] [stderr]   --> src/views/settings.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub BIGFONT: Font,
[INFO] [stderr]    |         ^^^^^^^ help: convert the identifier to snake case: `bigfont`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `SMALLFONT` should have a snake case name
[INFO] [stderr]   --> src/views/settings.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub SMALLFONT: Font,
[INFO] [stderr]    |         ^^^^^^^^^ help: convert the identifier to snake case: `smallfont`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `"docker" "inspect" "8f25684c478417286e858456f8874fc40d8df94214cce5533210afab6d9b45f7"`
[INFO] running `"docker" "rm" "-f" "8f25684c478417286e858456f8874fc40d8df94214cce5533210afab6d9b45f7"`
[INFO] [stdout] 8f25684c478417286e858456f8874fc40d8df94214cce5533210afab6d9b45f7