[INFO] cloning repository https://github.com/Algorhythm-sxv/chess-engine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Algorhythm-sxv/chess-engine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlgorhythm-sxv%2Fchess-engine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlgorhythm-sxv%2Fchess-engine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5c691ab39ee5aec86fc5b53ea55d7d911ae7a65b
[INFO] testing Algorhythm-sxv/chess-engine against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlgorhythm-sxv%2Fchess-engine" "/workspace/builds/worker-35/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-35/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Algorhythm-sxv/chess-engine on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Algorhythm-sxv/chess-engine
[INFO] finished tweaking git repo https://github.com/Algorhythm-sxv/chess-engine
[INFO] tweaked toml for git repo https://github.com/Algorhythm-sxv/chess-engine written to /workspace/builds/worker-35/source/Cargo.toml
[INFO] crate git repo https://github.com/Algorhythm-sxv/chess-engine already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e238e47393b09fc6e21786a0bf442a8fa103a8d93b6f5fc5a5b943aa6bf612c
[INFO] running `Command { std: "docker" "start" "-a" "5e238e47393b09fc6e21786a0bf442a8fa103a8d93b6f5fc5a5b943aa6bf612c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e238e47393b09fc6e21786a0bf442a8fa103a8d93b6f5fc5a5b943aa6bf612c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e238e47393b09fc6e21786a0bf442a8fa103a8d93b6f5fc5a5b943aa6bf612c", kill_on_drop: false }`
[INFO] [stdout] 5e238e47393b09fc6e21786a0bf442a8fa103a8d93b6f5fc5a5b943aa6bf612c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c6f1e39bd588fcf0b4780bba67e60c9285af436e395f6f48bf4c81b3c879e70
[INFO] running `Command { std: "docker" "start" "-a" "9c6f1e39bd588fcf0b4780bba67e60c9285af436e395f6f48bf4c81b3c879e70", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling chess-engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::array::IntoIter::<T, N>::new`: use `IntoIterator::into_iter` instead
[INFO] [stdout]    --> src/search.rs:106:50
[INFO] [stdout]     |
[INFO] [stdout] 106 |         let killer_moves = std::array::IntoIter::new(self.get_killer_moves(ply))
[INFO] [stdout]     |                                                  ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `D_FILE`
[INFO] [stdout]    --> src/lookup_tables.rs:103:1
[INFO] [stdout]     |
[INFO] [stdout] 103 | pub const D_FILE: u64 = 0x0808080808080808;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `E_FILE`
[INFO] [stdout]    --> src/lookup_tables.rs:104:1
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub const E_FILE: u64 = 0x1010101010101010;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FIRST_RANK`
[INFO] [stdout]    --> src/lookup_tables.rs:109:1
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub const FIRST_RANK: u64 = 0x00000000000000FF;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FOURTH_RANK`
[INFO] [stdout]    --> src/lookup_tables.rs:112:1
[INFO] [stdout]     |
[INFO] [stdout] 112 | pub const FOURTH_RANK: u64 = 0x00000000FF000000;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FIFTH_RANK`
[INFO] [stdout]    --> src/lookup_tables.rs:113:1
[INFO] [stdout]     |
[INFO] [stdout] 113 | pub const FIFTH_RANK: u64 = 0x000000FF00000000;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `EIGHTH_RANK`
[INFO] [stdout]    --> src/lookup_tables.rs:116:1
[INFO] [stdout]     |
[INFO] [stdout] 116 | pub const EIGHTH_RANK: u64 = 0xFF00000000000000;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `null`
[INFO] [stdout]    --> src/types.rs:153:12
[INFO] [stdout]     |
[INFO] [stdout] 153 |     pub fn null() -> Self {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_null`
[INFO] [stdout]    --> src/types.rs:157:12
[INFO] [stdout]     |
[INFO] [stdout] 157 |     pub fn is_null(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_algebraic_notation`
[INFO] [stdout]    --> src/types.rs:161:12
[INFO] [stdout]     |
[INFO] [stdout] 161 |     pub fn to_algebraic_notation(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_bitboard`
[INFO] [stdout]  --> src/utils.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn print_bitboard(board: u64) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [optimized + debuginfo] target(s) in 37.74s
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9c6f1e39bd588fcf0b4780bba67e60c9285af436e395f6f48bf4c81b3c879e70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c6f1e39bd588fcf0b4780bba67e60c9285af436e395f6f48bf4c81b3c879e70", kill_on_drop: false }`
[INFO] [stdout] 9c6f1e39bd588fcf0b4780bba67e60c9285af436e395f6f48bf4c81b3c879e70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0b367ac810e2e94a09796749844975da2279609b20b8c881594ef9eed38e547
[INFO] running `Command { std: "docker" "start" "-a" "a0b367ac810e2e94a09796749844975da2279609b20b8c881594ef9eed38e547", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling chess-engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::array::IntoIter::<T, N>::new`: use `IntoIterator::into_iter` instead
[INFO] [stdout]    --> src/search.rs:106:50
[INFO] [stdout]     |
[INFO] [stdout] 106 |         let killer_moves = std::array::IntoIter::new(self.get_killer_moves(ply))
[INFO] [stdout]     |                                                  ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `D_FILE`
[INFO] [stdout]    --> src/lookup_tables.rs:103:1
[INFO] [stdout]     |
[INFO] [stdout] 103 | pub const D_FILE: u64 = 0x0808080808080808;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `E_FILE`
[INFO] [stdout]    --> src/lookup_tables.rs:104:1
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub const E_FILE: u64 = 0x1010101010101010;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FIRST_RANK`
[INFO] [stdout]    --> src/lookup_tables.rs:109:1
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub const FIRST_RANK: u64 = 0x00000000000000FF;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FOURTH_RANK`
[INFO] [stdout]    --> src/lookup_tables.rs:112:1
[INFO] [stdout]     |
[INFO] [stdout] 112 | pub const FOURTH_RANK: u64 = 0x00000000FF000000;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `FIFTH_RANK`
[INFO] [stdout]    --> src/lookup_tables.rs:113:1
[INFO] [stdout]     |
[INFO] [stdout] 113 | pub const FIFTH_RANK: u64 = 0x000000FF00000000;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `EIGHTH_RANK`
[INFO] [stdout]    --> src/lookup_tables.rs:116:1
[INFO] [stdout]     |
[INFO] [stdout] 116 | pub const EIGHTH_RANK: u64 = 0xFF00000000000000;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `null`
[INFO] [stdout]    --> src/types.rs:153:12
[INFO] [stdout]     |
[INFO] [stdout] 153 |     pub fn null() -> Self {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_null`
[INFO] [stdout]    --> src/types.rs:157:12
[INFO] [stdout]     |
[INFO] [stdout] 157 |     pub fn is_null(&self) -> bool {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_algebraic_notation`
[INFO] [stdout]    --> src/types.rs:161:12
[INFO] [stdout]     |
[INFO] [stdout] 161 |     pub fn to_algebraic_notation(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_bitboard`
[INFO] [stdout]  --> src/utils.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn print_bitboard(board: u64) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [optimized + debuginfo] target(s) in 2.07s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/chess_engine-759219a34e894266)
[INFO] running `Command { std: "docker" "inspect" "a0b367ac810e2e94a09796749844975da2279609b20b8c881594ef9eed38e547", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0b367ac810e2e94a09796749844975da2279609b20b8c881594ef9eed38e547", kill_on_drop: false }`
[INFO] [stdout] a0b367ac810e2e94a09796749844975da2279609b20b8c881594ef9eed38e547
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4f93720854aac8df39ff659c738ba0ac7dcd665053969bc85b72112f011ac929
[INFO] running `Command { std: "docker" "start" "-a" "4f93720854aac8df39ff659c738ba0ac7dcd665053969bc85b72112f011ac929", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: use of deprecated associated function `std::array::IntoIter::<T, N>::new`: use `IntoIterator::into_iter` instead
[INFO] [stderr]    --> src/search.rs:106:50
[INFO] [stderr]     |
[INFO] [stderr] 106 |         let killer_moves = std::array::IntoIter::new(self.get_killer_moves(ply))
[INFO] [stderr]     |                                                  ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `D_FILE`
[INFO] [stderr]    --> src/lookup_tables.rs:103:1
[INFO] [stderr]     |
[INFO] [stderr] 103 | pub const D_FILE: u64 = 0x0808080808080808;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `E_FILE`
[INFO] [stderr]    --> src/lookup_tables.rs:104:1
[INFO] [stderr]     |
[INFO] [stderr] 104 | pub const E_FILE: u64 = 0x1010101010101010;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `FIRST_RANK`
[INFO] [stderr]    --> src/lookup_tables.rs:109:1
[INFO] [stderr]     |
[INFO] [stderr] 109 | pub const FIRST_RANK: u64 = 0x00000000000000FF;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `FOURTH_RANK`
[INFO] [stderr]    --> src/lookup_tables.rs:112:1
[INFO] [stderr]     |
[INFO] [stderr] 112 | pub const FOURTH_RANK: u64 = 0x00000000FF000000;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `FIFTH_RANK`
[INFO] [stderr]    --> src/lookup_tables.rs:113:1
[INFO] [stderr]     |
[INFO] [stderr] 113 | pub const FIFTH_RANK: u64 = 0x000000FF00000000;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `EIGHTH_RANK`
[INFO] [stderr]    --> src/lookup_tables.rs:116:1
[INFO] [stderr]     |
[INFO] [stderr] 116 | pub const EIGHTH_RANK: u64 = 0xFF00000000000000;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `null`
[INFO] [stderr]    --> src/types.rs:153:12
[INFO] [stderr]     |
[INFO] [stderr] 153 |     pub fn null() -> Self {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `is_null`
[INFO] [stderr]    --> src/types.rs:157:12
[INFO] [stderr]     |
[INFO] [stderr] 157 |     pub fn is_null(&self) -> bool {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `to_algebraic_notation`
[INFO] [stderr]    --> src/types.rs:161:12
[INFO] [stderr]     |
[INFO] [stderr] 161 |     pub fn to_algebraic_notation(&self) -> String {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_bitboard`
[INFO] [stderr]  --> src/utils.rs:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub fn print_bitboard(board: u64) {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `chess-engine` (bin "chess-engine" test) generated 11 warnings
[INFO] [stderr]     Finished test [optimized + debuginfo] target(s) in 3.12s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/chess_engine-759219a34e894266)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4f93720854aac8df39ff659c738ba0ac7dcd665053969bc85b72112f011ac929", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f93720854aac8df39ff659c738ba0ac7dcd665053969bc85b72112f011ac929", kill_on_drop: false }`
[INFO] [stdout] 4f93720854aac8df39ff659c738ba0ac7dcd665053969bc85b72112f011ac929