[INFO] updating cached repository https://github.com/Undo-all/blokus-ai-old
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 24e94daab4c86f84a910b237039a82833502e4e5
[INFO] checking Undo-all/blokus-ai-old against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FUndo-all%2Fblokus-ai-old" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Undo-all/blokus-ai-old on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Undo-all/blokus-ai-old
[INFO] finished tweaking git repo https://github.com/Undo-all/blokus-ai-old
[INFO] tweaked toml for git repo https://github.com/Undo-all/blokus-ai-old written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Undo-all/blokus-ai-old already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7ef4cb13d57610c0c9e4b5d68b1e43babd0723dad281be1239af8722dcb35f0c
[INFO] running `"docker" "start" "-a" "7ef4cb13d57610c0c9e4b5d68b1e43babd0723dad281be1239af8722dcb35f0c"`
[INFO] [stderr]     Checking libc v0.2.21
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking time v0.1.36
[INFO] [stderr]     Checking blokus-ai v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `rand`
[INFO] [stderr]  --> src/game/board/pieces/tile.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use rand;
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand`
[INFO] [stderr]  --> src/game/board/pieces/tile.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use rand;
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/game/board/pieces/mod.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::sync::ONCE_INIT;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/game/board/pieces/mod.rs:31:21
[INFO] [stderr]    |
[INFO] [stderr] 31 | static INIT: Once = ONCE_INIT;
[INFO] [stderr]    |                     ^^^^^^^^^ help: replace the use of the deprecated item: `Once::new()`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/game/board/pieces/mod.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::sync::ONCE_INIT;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/game/board/pieces/mod.rs:31:21
[INFO] [stderr]    |
[INFO] [stderr] 31 | static INIT: Once = ONCE_INIT;
[INFO] [stderr]    |                     ^^^^^^^^^ help: replace the use of the deprecated item: `Once::new()`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index`
[INFO] [stderr]   --> src/game/board/pieces/tile.rs:19:33
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn new(piece: [u8; 49], index: usize) -> Self {
[INFO] [stderr]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index`
[INFO] [stderr]   --> src/game/board/pieces/tile.rs:19:33
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn new(piece: [u8; 49], index: usize) -> Self {
[INFO] [stderr]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/game/board/pieces/mod.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     unsafe {
[INFO] [stderr]    |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/game/board/pieces/mod.rs:49:13
[INFO] [stderr]    |
[INFO] [stderr] 49 |             unsafe {
[INFO] [stderr]    |             ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_index`
[INFO] [stderr]   --> src/game/board/pieces/point.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn from_index(index: usize) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_index`
[INFO] [stderr]   --> src/game/board/pieces/point.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn to_index(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `block_position`
[INFO] [stderr]   --> src/game/board/pieces/corners/corner.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn block_position(&self) -> Point {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `opposite`
[INFO] [stderr]   --> src/game/board/pieces/corners/direction.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn opposite(self) -> Direction {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `up`
[INFO] [stderr]   --> src/game/board/pieces/corners/direction.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn up(self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_corners`
[INFO] [stderr]   --> src/game/board/pieces/corners/mod.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     pub fn get_corners(&self, direction: Direction) -> &[Point] {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `iter`
[INFO] [stderr]   --> src/game/board/pieces/corners/mod.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn iter(&self) -> CornerIterator {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `as_slice`
[INFO] [stderr]   --> src/game/board/pieces/corners/mod.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 |     fn as_slice(&self) -> &[Point] {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `maps`
[INFO] [stderr]  --> src/game/board/pieces/placement_map.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     maps: [Placement; 400],
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `BitfieldIter`
[INFO] [stderr]  --> src/game/board/pieces/placement_map.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | type BitfieldIter<'a> = ::std::iter::Take<::std::slice::Iter<'a, (u8, u64)>>;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `intersection_bitfields`
[INFO] [stderr]   --> src/game/board/pieces/placement_map.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn intersection_bitfields(&self, index: usize) -> BitfieldIter {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `ShapeIterator`
[INFO] [stderr]   --> src/game/board/pieces/tile.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | type ShapeIterator<'a> = ::std::iter::Take<::std::slice::Iter<'a, Shape>>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `orientations`
[INFO] [stderr]   --> src/game/board/pieces/tile.rs:54:5
[INFO] [stderr]    |
[INFO] [stderr] 54 |     pub fn orientations(&self) -> ShapeIterator {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_orientations`
[INFO] [stderr]   --> src/game/board/pieces/tile.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     pub fn get_orientations(&self) -> &[Shape] {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `orientation`
[INFO] [stderr]   --> src/game/board/pieces/tile.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 |     pub fn orientation(&self, index: usize) -> &Shape {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `corners`
[INFO] [stderr]   --> src/game/board/pieces/tile.rs:96:5
[INFO] [stderr]    |
[INFO] [stderr] 96 |     pub fn corners(&self) -> CornerIterator {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_corners`
[INFO] [stderr]    --> src/game/board/pieces/tile.rs:100:5
[INFO] [stderr]     |
[INFO] [stderr] 100 |     pub fn get_corners(&self, direction: Direction) -> &[Point] {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `piece`
[INFO] [stderr]    --> src/game/board/pieces/mod.rs:100:8
[INFO] [stderr]     |
[INFO] [stderr] 100 | pub fn piece(which: usize) -> &'static Tile {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/game/board/pieces/mod.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     unsafe {
[INFO] [stderr]    |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/game/board/pieces/mod.rs:49:13
[INFO] [stderr]    |
[INFO] [stderr] 49 |             unsafe {
[INFO] [stderr]    |             ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_index`
[INFO] [stderr]   --> src/game/board/pieces/point.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn from_index(index: usize) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_index`
[INFO] [stderr]   --> src/game/board/pieces/point.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn to_index(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `block_position`
[INFO] [stderr]   --> src/game/board/pieces/corners/corner.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn block_position(&self) -> Point {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `opposite`
[INFO] [stderr]   --> src/game/board/pieces/corners/direction.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn opposite(self) -> Direction {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `up`
[INFO] [stderr]   --> src/game/board/pieces/corners/direction.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     pub fn up(self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_corners`
[INFO] [stderr]   --> src/game/board/pieces/corners/mod.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     pub fn get_corners(&self, direction: Direction) -> &[Point] {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `iter`
[INFO] [stderr]   --> src/game/board/pieces/corners/mod.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn iter(&self) -> CornerIterator {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `as_slice`
[INFO] [stderr]   --> src/game/board/pieces/corners/mod.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 |     fn as_slice(&self) -> &[Point] {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `maps`
[INFO] [stderr]  --> src/game/board/pieces/placement_map.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     maps: [Placement; 400],
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `BitfieldIter`
[INFO] [stderr]  --> src/game/board/pieces/placement_map.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | type BitfieldIter<'a> = ::std::iter::Take<::std::slice::Iter<'a, (u8, u64)>>;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `intersection_bitfields`
[INFO] [stderr]   --> src/game/board/pieces/placement_map.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn intersection_bitfields(&self, index: usize) -> BitfieldIter {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `ShapeIterator`
[INFO] [stderr]   --> src/game/board/pieces/tile.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | type ShapeIterator<'a> = ::std::iter::Take<::std::slice::Iter<'a, Shape>>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `orientations`
[INFO] [stderr]   --> src/game/board/pieces/tile.rs:54:5
[INFO] [stderr]    |
[INFO] [stderr] 54 |     pub fn orientations(&self) -> ShapeIterator {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_orientations`
[INFO] [stderr]   --> src/game/board/pieces/tile.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     pub fn get_orientations(&self) -> &[Shape] {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `orientation`
[INFO] [stderr]   --> src/game/board/pieces/tile.rs:64:5
[INFO] [stderr]    |
[INFO] [stderr] 64 |     pub fn orientation(&self, index: usize) -> &Shape {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `corners`
[INFO] [stderr]   --> src/game/board/pieces/tile.rs:96:5
[INFO] [stderr]    |
[INFO] [stderr] 96 |     pub fn corners(&self) -> CornerIterator {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_corners`
[INFO] [stderr]    --> src/game/board/pieces/tile.rs:100:5
[INFO] [stderr]     |
[INFO] [stderr] 100 |     pub fn get_corners(&self, direction: Direction) -> &[Point] {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `piece`
[INFO] [stderr]    --> src/game/board/pieces/mod.rs:100:8
[INFO] [stderr]     |
[INFO] [stderr] 100 | pub fn piece(which: usize) -> &'static Tile {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 24 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 24 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.59s
[INFO] running `"docker" "inspect" "7ef4cb13d57610c0c9e4b5d68b1e43babd0723dad281be1239af8722dcb35f0c"`
[INFO] running `"docker" "rm" "-f" "7ef4cb13d57610c0c9e4b5d68b1e43babd0723dad281be1239af8722dcb35f0c"`
[INFO] [stdout] 7ef4cb13d57610c0c9e4b5d68b1e43babd0723dad281be1239af8722dcb35f0c