[INFO] updating cached repository gyscos/superc4
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/gyscos/superc4
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/gyscos/superc4" "work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/gyscos/superc4"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/gyscos/superc4'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gyscos/superc4" "work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/gyscos/superc4"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/gyscos/superc4'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] dc5e0cafa7b2b94d33d13a5bb8622d0aa735eb1a
[INFO] sha for GitHub repo gyscos/superc4: dc5e0cafa7b2b94d33d13a5bb8622d0aa735eb1a
[INFO] validating manifest of gyscos/superc4 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 gyscos/superc4 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 gyscos/superc4
[INFO] finished frobbing gyscos/superc4
[INFO] frobbed toml for gyscos/superc4 written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/gyscos/superc4/Cargo.toml
[INFO] started frobbing gyscos/superc4
[INFO] finished frobbing gyscos/superc4
[INFO] frobbed toml for gyscos/superc4 written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/gyscos/superc4/Cargo.toml
[INFO] crate gyscos/superc4 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] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking gyscos/superc4 against try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b for pr-59199
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-7/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/gyscos/superc4:/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] 3fbc20d4cc1cb8c4b6cc7544f1ba5d7f8c6aa96d2450ddc61bc87ba4bdb9ad49
[INFO] running `"docker" "start" "-a" "3fbc20d4cc1cb8c4b6cc7544f1ba5d7f8c6aa96d2450ddc61bc87ba4bdb9ad49"`
[INFO] [stderr]     Checking superc4 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::iter`
[INFO] [stderr]  --> src/game/game.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::iter;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter`
[INFO] [stderr]  --> src/game/game.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::iter;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `game`
[INFO] [stderr]   --> src/main.rs:10:13
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let mut game = Game::new(Configuration::clean_8());
[INFO] [stderr]    |             ^^^^ help: consider prefixing with an underscore: `_game`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let mut game = Game::new(Configuration::clean_8());
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Full`
[INFO] [stderr]   --> src/game/board.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Full(Player),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `game`
[INFO] [stderr]   --> src/main.rs:10:13
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let mut game = Game::new(Configuration::clean_8());
[INFO] [stderr]    |             ^^^^ help: consider prefixing with an underscore: `_game`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `x`
[INFO] [stderr]   --> src/game/board.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     x: i8,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `y`
[INFO] [stderr]   --> src/game/board.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     y: i8,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated const is never used: `UP`
[INFO] [stderr]   --> src/game/board.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub const UP: Direction = Direction{x: 0, y: 1};
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated const is never used: `DOWN`
[INFO] [stderr]   --> src/game/board.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub const DOWN: Direction = Direction{x: 0, y: -1};
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated const is never used: `LEFT`
[INFO] [stderr]   --> src/game/board.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub const LEFT: Direction = Direction{x: -1, y: 0};
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated const is never used: `RIGHT`
[INFO] [stderr]   --> src/game/board.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub const RIGHT: Direction = Direction{x: 1, y: 0};
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated const is never used: `UP_RIGHT`
[INFO] [stderr]   --> src/game/board.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub const UP_RIGHT: Direction = Direction{x: 1, y: 1};
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated const is never used: `UP_LEFT`
[INFO] [stderr]   --> src/game/board.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub const UP_LEFT: Direction = Direction{x:-1, y: 1};
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated const is never used: `DOWN_LEFT`
[INFO] [stderr]   --> src/game/board.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub const DOWN_LEFT: Direction = Direction{x:-1,y:-1};
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated const is never used: `DOWN_RIGHT`
[INFO] [stderr]   --> src/game/board.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub const DOWN_RIGHT: Direction = Direction{x:1,y:-1};
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated const is never used: `CARDINAL`
[INFO] [stderr]   --> src/game/board.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub const CARDINAL: &'static [Direction] = &[Direction::UP,Direction::LEFT,Direction::DOWN,Direction::RIGHT];
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated const is never used: `AXIS`
[INFO] [stderr]   --> src/game/board.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub const AXIS: &'static [Direction] = &[Direction::UP,Direction::RIGHT,Direction::UP_RIGHT,Direction::DOWN_RIGHT];
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `flip`
[INFO] [stderr]   --> src/game/board.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     pub fn flip(self) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from`
[INFO] [stderr]   --> src/game/board.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub fn from(self, (x,y): Pos) -> Pos {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `can_go`
[INFO] [stderr]   --> src/game/board.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     pub fn can_go(&self, (x,y): Pos, dir: Direction) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_valid`
[INFO] [stderr]   --> src/game/board.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 |     pub fn is_valid(&self, (x,y): Pos) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_empty`
[INFO] [stderr]   --> src/game/board.rs:69:5
[INFO] [stderr]    |
[INFO] [stderr] 69 |     pub fn is_empty(&self, pos: Pos) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get`
[INFO] [stderr]   --> src/game/board.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 73 |     pub fn get(&self, pos: Pos) -> Cell {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `play`
[INFO] [stderr]   --> src/game/board.rs:82:5
[INFO] [stderr]    |
[INFO] [stderr] 82 |     pub fn play(&mut self, pos: Pos, player: Player) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `board`
[INFO] [stderr]   --> src/game/game.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     board: Board,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `next_player`
[INFO] [stderr]   --> src/game/game.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     next_player: Player,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `InvalidTurn`
[INFO] [stderr]   --> src/game/game.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     InvalidTurn,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `NonEmptyCell`
[INFO] [stderr]   --> src/game/game.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     NonEmptyCell,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `FloatingCell`
[INFO] [stderr]   --> src/game/game.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     FloatingCell,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_blocked`
[INFO] [stderr]   --> src/game/game.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn add_blocked(mut self, pos: Pos) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `clean_10`
[INFO] [stderr]   --> src/game/game.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub fn clean_10() -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `corner_8`
[INFO] [stderr]   --> src/game/game.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     pub fn corner_8() -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `corner_10`
[INFO] [stderr]   --> src/game/game.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     pub fn corner_10() -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `corner_n`
[INFO] [stderr]   --> src/game/game.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 |     pub fn corner_n(size: usize) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_winning`
[INFO] [stderr]   --> src/game/game.rs:76:1
[INFO] [stderr]    |
[INFO] [stderr] 76 | fn is_winning(board: &Board, player: Player, pos: Pos) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `count_cells`
[INFO] [stderr]   --> src/game/game.rs:89:1
[INFO] [stderr]    |
[INFO] [stderr] 89 | fn count_cells(board: &Board, mut pos: Pos, dir: Direction, player: Player) -> u32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_floating`
[INFO] [stderr]    --> src/game/game.rs:105:1
[INFO] [stderr]     |
[INFO] [stderr] 105 | fn is_floating(board: &Board, pos: Pos) -> bool {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_full_line`
[INFO] [stderr]    --> src/game/game.rs:116:1
[INFO] [stderr]     |
[INFO] [stderr] 116 | fn is_full_line(board: &Board, mut pos: Pos, d: Direction) -> bool {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_next_player`
[INFO] [stderr]    --> src/game/game.rs:148:5
[INFO] [stderr]     |
[INFO] [stderr] 148 |     pub fn get_next_player(&self) -> Player {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `play`
[INFO] [stderr]    --> src/game/game.rs:153:5
[INFO] [stderr]     |
[INFO] [stderr] 153 |     pub fn play(&mut self, player: Player, pos: Pos) -> Result<(),Error> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `associated_consts` has been stable since 1.20.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(associated_consts)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let mut game = Game::new(Configuration::clean_8());
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Full`
[INFO] [stderr]   --> src/game/board.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Full(Player),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `x`
[INFO] [stderr]   --> src/game/board.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     x: i8,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `y`
[INFO] [stderr]   --> src/game/board.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     y: i8,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated const is never used: `UP`
[INFO] [stderr]   --> src/game/board.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub const UP: Direction = Direction{x: 0, y: 1};
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated const is never used: `DOWN`
[INFO] [stderr]   --> src/game/board.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub const DOWN: Direction = Direction{x: 0, y: -1};
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated const is never used: `LEFT`
[INFO] [stderr]   --> src/game/board.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub const LEFT: Direction = Direction{x: -1, y: 0};
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated const is never used: `RIGHT`
[INFO] [stderr]   --> src/game/board.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub const RIGHT: Direction = Direction{x: 1, y: 0};
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated const is never used: `UP_RIGHT`
[INFO] [stderr]   --> src/game/board.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub const UP_RIGHT: Direction = Direction{x: 1, y: 1};
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated const is never used: `UP_LEFT`
[INFO] [stderr]   --> src/game/board.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub const UP_LEFT: Direction = Direction{x:-1, y: 1};
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated const is never used: `DOWN_LEFT`
[INFO] [stderr]   --> src/game/board.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub const DOWN_LEFT: Direction = Direction{x:-1,y:-1};
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated const is never used: `DOWN_RIGHT`
[INFO] [stderr]   --> src/game/board.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub const DOWN_RIGHT: Direction = Direction{x:1,y:-1};
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated const is never used: `CARDINAL`
[INFO] [stderr]   --> src/game/board.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub const CARDINAL: &'static [Direction] = &[Direction::UP,Direction::LEFT,Direction::DOWN,Direction::RIGHT];
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated const is never used: `AXIS`
[INFO] [stderr]   --> src/game/board.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub const AXIS: &'static [Direction] = &[Direction::UP,Direction::RIGHT,Direction::UP_RIGHT,Direction::DOWN_RIGHT];
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `flip`
[INFO] [stderr]   --> src/game/board.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     pub fn flip(self) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from`
[INFO] [stderr]   --> src/game/board.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub fn from(self, (x,y): Pos) -> Pos {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `can_go`
[INFO] [stderr]   --> src/game/board.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     pub fn can_go(&self, (x,y): Pos, dir: Direction) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_valid`
[INFO] [stderr]   --> src/game/board.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 |     pub fn is_valid(&self, (x,y): Pos) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_empty`
[INFO] [stderr]   --> src/game/board.rs:69:5
[INFO] [stderr]    |
[INFO] [stderr] 69 |     pub fn is_empty(&self, pos: Pos) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get`
[INFO] [stderr]   --> src/game/board.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 73 |     pub fn get(&self, pos: Pos) -> Cell {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `play`
[INFO] [stderr]   --> src/game/board.rs:82:5
[INFO] [stderr]    |
[INFO] [stderr] 82 |     pub fn play(&mut self, pos: Pos, player: Player) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `board`
[INFO] [stderr]   --> src/game/game.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     board: Board,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `next_player`
[INFO] [stderr]   --> src/game/game.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     next_player: Player,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `InvalidTurn`
[INFO] [stderr]   --> src/game/game.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     InvalidTurn,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `NonEmptyCell`
[INFO] [stderr]   --> src/game/game.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     NonEmptyCell,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `FloatingCell`
[INFO] [stderr]   --> src/game/game.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     FloatingCell,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_blocked`
[INFO] [stderr]   --> src/game/game.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn add_blocked(mut self, pos: Pos) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `clean_10`
[INFO] [stderr]   --> src/game/game.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub fn clean_10() -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `corner_8`
[INFO] [stderr]   --> src/game/game.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     pub fn corner_8() -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `corner_10`
[INFO] [stderr]   --> src/game/game.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     pub fn corner_10() -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `corner_n`
[INFO] [stderr]   --> src/game/game.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 |     pub fn corner_n(size: usize) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_winning`
[INFO] [stderr]   --> src/game/game.rs:76:1
[INFO] [stderr]    |
[INFO] [stderr] 76 | fn is_winning(board: &Board, player: Player, pos: Pos) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `count_cells`
[INFO] [stderr]   --> src/game/game.rs:89:1
[INFO] [stderr]    |
[INFO] [stderr] 89 | fn count_cells(board: &Board, mut pos: Pos, dir: Direction, player: Player) -> u32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_floating`
[INFO] [stderr]    --> src/game/game.rs:105:1
[INFO] [stderr]     |
[INFO] [stderr] 105 | fn is_floating(board: &Board, pos: Pos) -> bool {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_full_line`
[INFO] [stderr]    --> src/game/game.rs:116:1
[INFO] [stderr]     |
[INFO] [stderr] 116 | fn is_full_line(board: &Board, mut pos: Pos, d: Direction) -> bool {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_next_player`
[INFO] [stderr]    --> src/game/game.rs:148:5
[INFO] [stderr]     |
[INFO] [stderr] 148 |     pub fn get_next_player(&self) -> Player {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `play`
[INFO] [stderr]    --> src/game/game.rs:153:5
[INFO] [stderr]     |
[INFO] [stderr] 153 |     pub fn play(&mut self, player: Player, pos: Pos) -> Result<(),Error> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `associated_consts` has been stable since 1.20.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(associated_consts)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `"docker" "inspect" "3fbc20d4cc1cb8c4b6cc7544f1ba5d7f8c6aa96d2450ddc61bc87ba4bdb9ad49"`
[INFO] running `"docker" "rm" "-f" "3fbc20d4cc1cb8c4b6cc7544f1ba5d7f8c6aa96d2450ddc61bc87ba4bdb9ad49"`
[INFO] [stdout] 3fbc20d4cc1cb8c4b6cc7544f1ba5d7f8c6aa96d2450ddc61bc87ba4bdb9ad49