[INFO] cloning repository https://github.com/C-J-Cooper/athena-engine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/C-J-Cooper/athena-engine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FC-J-Cooper%2Fathena-engine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FC-J-Cooper%2Fathena-engine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d2e274f5ccf20a18d7df5593e8627f4e9170ef39
[INFO] building C-J-Cooper/athena-engine against master#ad211ced81509462cdfe4c29ed10f97279a0acae for pr-135216
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FC-J-Cooper%2Fathena-engine" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/C-J-Cooper/athena-engine on toolchain ad211ced81509462cdfe4c29ed10f97279a0acae
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/C-J-Cooper/athena-engine
[INFO] finished tweaking git repo https://github.com/C-J-Cooper/athena-engine
[INFO] tweaked toml for git repo https://github.com/C-J-Cooper/athena-engine written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/C-J-Cooper/athena-engine already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: Found `debug_assertions` in `target.'cfg(...)'.dependencies`. This value is not supported for selecting dependencies and will not work as expected. To learn more visit https://doc.rust-lang.org/cargo/reference/specifying-dependencies.html#platform-specific-dependencies
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-macros v1.5.0
[INFO] [stderr]   Downloaded libc v0.2.98
[INFO] [stderr]   Downloaded console_error_panic_hook v0.1.6
[INFO] [stderr]   Downloaded wasm-bindgen-test-macro v0.2.50
[INFO] [stderr]   Downloaded wasm-bindgen-test v0.2.50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 46dd6e097fc12827ddb6eb2df03be84872a55d650572bd6bb32823299195286e
[INFO] running `Command { std: "docker" "start" "-a" "46dd6e097fc12827ddb6eb2df03be84872a55d650572bd6bb32823299195286e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46dd6e097fc12827ddb6eb2df03be84872a55d650572bd6bb32823299195286e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46dd6e097fc12827ddb6eb2df03be84872a55d650572bd6bb32823299195286e", kill_on_drop: false }`
[INFO] [stdout] 46dd6e097fc12827ddb6eb2df03be84872a55d650572bd6bb32823299195286e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 39d45cde7ec7a005331b8803670755aa1a2454b0720bb64576eb8a3103a12ef9
[INFO] running `Command { std: "docker" "start" "-a" "39d45cde7ec7a005331b8803670755aa1a2454b0720bb64576eb8a3103a12ef9", kill_on_drop: false }`
[INFO] [stderr] warning: Found `debug_assertions` in `target.'cfg(...)'.dependencies`. This value is not supported for selecting dependencies and will not work as expected. To learn more visit https://doc.rust-lang.org/cargo/reference/specifying-dependencies.html#platform-specific-dependencies
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.74
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling bumpalo v3.7.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.74
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.74
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.74
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.74
[INFO] [stderr]    Compiling js-sys v0.3.51
[INFO] [stderr]    Compiling console_error_panic_hook v0.1.6
[INFO] [stderr]    Compiling web-sys v0.3.51
[INFO] [stderr]    Compiling athena-engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::utils::log`
[INFO] [stdout]  --> src/board.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::utils::log;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `coord_to_rank_file` and `log`
[INFO] [stdout]  --> src/book.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::utils::{log, coord_to_rank_file};
[INFO] [stdout]   |                    ^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `count_leaves_in_tree`
[INFO] [stdout]  --> src/engine.rs:6:63
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::search::{Node, alpha_beta_minimax, find_best_move, count_leaves_in_tree};
[INFO] [stdout]   |                                                               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `coord_to_rank_file` and `log`
[INFO] [stdout]  --> src/engine.rs:7:20
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::utils::{log, coord_to_rank_file};
[INFO] [stdout]   |                    ^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::pieces`
[INFO] [stdout]  --> src/evaluate.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::pieces;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log`
[INFO] [stdout]  --> src/pieces.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::utils::{log, coord_to_rank_file};
[INFO] [stdout]   |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/pieces.rs:102:12
[INFO] [stdout]     |
[INFO] [stdout] 102 |         if ((self.piece == 'p' && dest[0] == 1) || 
[INFO] [stdout]     |            ^
[INFO] [stdout] 103 |             (self.piece == 'P' && dest[0] == 8)) {
[INFO] [stdout]     |                                                ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 102 ~         if (self.piece == 'p' && dest[0] == 1) || 
[INFO] [stdout] 103 ~             (self.piece == 'P' && dest[0] == 8) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::utils::log`
[INFO] [stdout]  --> src/players.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::utils::log;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::utils::log`
[INFO] [stdout]  --> src/search.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::utils::log;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::utils::log`
[INFO] [stdout]  --> src/rules.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::utils::log;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `utils::log`
[INFO] [stdout]   --> src/lib.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use utils::log;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/players.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let mut maybe_book = read_opening_book(max_depth);
[INFO] [stdout]    |             ----^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/search.rs:50:27
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub fn alpha_beta_minimax(mut node: &mut Node, depth: usize, 
[INFO] [stdout]    |                           ----^^^^
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `clear_board` is never used
[INFO] [stdout]    --> src/board.rs:490:8
[INFO] [stdout]     |
[INFO] [stdout] 24  | impl Board {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 490 |     fn clear_board(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_opening_book_from_file` is never used
[INFO] [stdout]   --> src/book.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn read_opening_book_from_file(book_filepath: &str, max_book_depth: usize) -> Option<Node> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `random_move` is never used
[INFO] [stdout]   --> src/engine.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn random_move(board: &Board) -> ChessMove {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_random_piece_to_move` is never used
[INFO] [stdout]    --> src/engine.rs:104:4
[INFO] [stdout]     |
[INFO] [stdout] 104 | fn get_random_piece_to_move(board: &Board) -> [usize; 2] {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_slide_clear_for_capture` is never used
[INFO] [stdout]    --> src/pieces.rs:620:4
[INFO] [stdout]     |
[INFO] [stdout] 620 | fn is_slide_clear_for_capture(board: &Board, src: [usize; 2], dest: [usize; 2], is_white: bool) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `perft` is never used
[INFO] [stdout]    --> src/search.rs:104:8
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub fn perft(board: &Board, depth: u32) -> u32 {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `count_leaves_in_tree` is never used
[INFO] [stdout]    --> src/search.rs:123:8
[INFO] [stdout]     |
[INFO] [stdout] 123 | pub fn count_leaves_in_tree(root : &Node, num_leaves : &mut u32, num_checks : &mut u32) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `is_evaluated` is never read
[INFO] [stdout]    --> src/search.rs:163:9
[INFO] [stdout]     |
[INFO] [stdout] 159 | pub struct Node {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 163 |     pub is_evaluated: bool, 
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.63s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.74
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "39d45cde7ec7a005331b8803670755aa1a2454b0720bb64576eb8a3103a12ef9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39d45cde7ec7a005331b8803670755aa1a2454b0720bb64576eb8a3103a12ef9", kill_on_drop: false }`
[INFO] [stdout] 39d45cde7ec7a005331b8803670755aa1a2454b0720bb64576eb8a3103a12ef9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 999437efa9d003018f589544d0b87ed0bc5b98a644cdc5550370e484522a9193
[INFO] running `Command { std: "docker" "start" "-a" "999437efa9d003018f589544d0b87ed0bc5b98a644cdc5550370e484522a9193", kill_on_drop: false }`
[INFO] [stderr] warning: Found `debug_assertions` in `target.'cfg(...)'.dependencies`. This value is not supported for selecting dependencies and will not work as expected. To learn more visit https://doc.rust-lang.org/cargo/reference/specifying-dependencies.html#platform-specific-dependencies
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling smallvec v1.7.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling tokio v1.12.0
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling tokio-macros v1.5.0
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.74
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling mio v0.7.14
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.74
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.2.50
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.74
[INFO] [stderr]    Compiling wasm-bindgen v0.2.74
[INFO] [stderr]    Compiling js-sys v0.3.51
[INFO] [stderr]    Compiling console_error_panic_hook v0.1.6
[INFO] [stderr]    Compiling wasm-bindgen-futures v0.3.27
[INFO] [stderr]    Compiling web-sys v0.3.51
[INFO] [stderr]    Compiling wasm-bindgen-test v0.2.50
[INFO] [stderr]    Compiling athena-engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::utils::log`
[INFO] [stdout]  --> src/board.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::utils::log;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `coord_to_rank_file` and `log`
[INFO] [stdout]  --> src/book.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::utils::{log, coord_to_rank_file};
[INFO] [stdout]   |                    ^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `count_leaves_in_tree`
[INFO] [stdout]  --> src/engine.rs:6:63
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::search::{Node, alpha_beta_minimax, find_best_move, count_leaves_in_tree};
[INFO] [stdout]   |                                                               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `coord_to_rank_file` and `log`
[INFO] [stdout]  --> src/engine.rs:7:20
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::utils::{log, coord_to_rank_file};
[INFO] [stdout]   |                    ^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::pieces`
[INFO] [stdout]  --> src/evaluate.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::pieces;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log`
[INFO] [stdout]  --> src/pieces.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::utils::{log, coord_to_rank_file};
[INFO] [stdout]   |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/pieces.rs:102:12
[INFO] [stdout]     |
[INFO] [stdout] 102 |         if ((self.piece == 'p' && dest[0] == 1) || 
[INFO] [stdout]     |            ^
[INFO] [stdout] 103 |             (self.piece == 'P' && dest[0] == 8)) {
[INFO] [stdout]     |                                                ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 102 ~         if (self.piece == 'p' && dest[0] == 1) || 
[INFO] [stdout] 103 ~             (self.piece == 'P' && dest[0] == 8) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::utils::log`
[INFO] [stdout]  --> src/players.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::utils::log;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::utils::log`
[INFO] [stdout]  --> src/search.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::utils::log;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::utils::log`
[INFO] [stdout]  --> src/rules.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::utils::log;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `utils::log`
[INFO] [stdout]   --> src/lib.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use utils::log;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/players.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let mut maybe_book = read_opening_book(max_depth);
[INFO] [stdout]    |             ----^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/search.rs:50:27
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub fn alpha_beta_minimax(mut node: &mut Node, depth: usize, 
[INFO] [stdout]    |                           ----^^^^
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `clear_board` is never used
[INFO] [stdout]    --> src/board.rs:490:8
[INFO] [stdout]     |
[INFO] [stdout] 24  | impl Board {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 490 |     fn clear_board(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_opening_book_from_file` is never used
[INFO] [stdout]   --> src/book.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn read_opening_book_from_file(book_filepath: &str, max_book_depth: usize) -> Option<Node> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `random_move` is never used
[INFO] [stdout]   --> src/engine.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn random_move(board: &Board) -> ChessMove {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_random_piece_to_move` is never used
[INFO] [stdout]    --> src/engine.rs:104:4
[INFO] [stdout]     |
[INFO] [stdout] 104 | fn get_random_piece_to_move(board: &Board) -> [usize; 2] {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_slide_clear_for_capture` is never used
[INFO] [stdout]    --> src/pieces.rs:620:4
[INFO] [stdout]     |
[INFO] [stdout] 620 | fn is_slide_clear_for_capture(board: &Board, src: [usize; 2], dest: [usize; 2], is_white: bool) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `perft` is never used
[INFO] [stdout]    --> src/search.rs:104:8
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub fn perft(board: &Board, depth: u32) -> u32 {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `count_leaves_in_tree` is never used
[INFO] [stdout]    --> src/search.rs:123:8
[INFO] [stdout]     |
[INFO] [stdout] 123 | pub fn count_leaves_in_tree(root : &Node, num_leaves : &mut u32, num_checks : &mut u32) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `is_evaluated` is never read
[INFO] [stdout]    --> src/search.rs:163:9
[INFO] [stdout]     |
[INFO] [stdout] 159 | pub struct Node {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 163 |     pub is_evaluated: bool, 
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::utils::log`
[INFO] [stdout]  --> src/board.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::utils::log;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::console_log`
[INFO] [stdout]    --> src/board.rs:589:9
[INFO] [stdout]     |
[INFO] [stdout] 589 |     use crate::console_log;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `coord_to_rank_file` and `log`
[INFO] [stdout]  --> src/book.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::utils::{log, coord_to_rank_file};
[INFO] [stdout]   |                    ^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `count_leaves_in_tree`
[INFO] [stdout]  --> src/engine.rs:6:63
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::search::{Node, alpha_beta_minimax, find_best_move, count_leaves_in_tree};
[INFO] [stdout]   |                                                               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `coord_to_rank_file` and `log`
[INFO] [stdout]  --> src/engine.rs:7:20
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::utils::{log, coord_to_rank_file};
[INFO] [stdout]   |                    ^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::console_log`
[INFO] [stdout]    --> src/engine.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     use crate::console_log;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::pieces`
[INFO] [stdout]  --> src/evaluate.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::pieces;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log`
[INFO] [stdout]  --> src/pieces.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::utils::{log, coord_to_rank_file};
[INFO] [stdout]   |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/pieces.rs:102:12
[INFO] [stdout]     |
[INFO] [stdout] 102 |         if ((self.piece == 'p' && dest[0] == 1) || 
[INFO] [stdout]     |            ^
[INFO] [stdout] 103 |             (self.piece == 'P' && dest[0] == 8)) {
[INFO] [stdout]     |                                                ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 102 ~         if (self.piece == 'p' && dest[0] == 1) || 
[INFO] [stdout] 103 ~             (self.piece == 'P' && dest[0] == 8) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::utils::log`
[INFO] [stdout]  --> src/players.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::utils::log;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::utils::log`
[INFO] [stdout]  --> src/search.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::utils::log;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::console_log`
[INFO] [stdout]    --> src/search.rs:186:9
[INFO] [stdout]     |
[INFO] [stdout] 186 |     use crate::console_log;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::pieces::ChessMove`
[INFO] [stdout]    --> src/search.rs:188:9
[INFO] [stdout]     |
[INFO] [stdout] 188 |     use crate::pieces::ChessMove;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Node` and `alpha_beta_minimax`
[INFO] [stdout]    --> src/search.rs:189:25
[INFO] [stdout]     |
[INFO] [stdout] 189 |     use crate::search::{alpha_beta_minimax, perft, Node};
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::evaluate::CHECKMATE_VAL`
[INFO] [stdout]    --> src/search.rs:190:9
[INFO] [stdout]     |
[INFO] [stdout] 190 |     use crate::evaluate::CHECKMATE_VAL;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::utils::log`
[INFO] [stdout]  --> src/rules.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::utils::log;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `possible_moves_from_square`
[INFO] [stdout]   --> src/rules.rs:81:59
[INFO] [stdout]    |
[INFO] [stdout] 81 |     use crate::rules::{is_move_legal, all_possible_moves, possible_moves_from_square};
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `utils::log`
[INFO] [stdout]   --> src/lib.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use utils::log;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `root`
[INFO] [stdout]    --> src/book.rs:151:21
[INFO] [stdout]     |
[INFO] [stdout] 151 |         if let Some(root) = read_opening_book_from_file(path_to_book, max_depth) {
[INFO] [stdout]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_root`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_depth`
[INFO] [stdout]    --> src/book.rs:161:13
[INFO] [stdout]     |
[INFO] [stdout] 161 |         let max_depth:usize = 10;
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_depth`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/engine.rs:167:13
[INFO] [stdout]     |
[INFO] [stdout] 167 |         let mut depth = 3 as usize;
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/players.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let mut maybe_book = read_opening_book(max_depth);
[INFO] [stdout]    |             ----^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/search.rs:50:27
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub fn alpha_beta_minimax(mut node: &mut Node, depth: usize, 
[INFO] [stdout]    |                           ----^^^^
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/search.rs:198:13
[INFO] [stdout]     |
[INFO] [stdout] 198 |         let mut board = Board::new();
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/search.rs:225:13
[INFO] [stdout]     |
[INFO] [stdout] 225 |         let mut depth = 1;
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/search.rs:226:13
[INFO] [stdout]     |
[INFO] [stdout] 226 |         let mut num_leaves = perft(&board, depth);
[INFO] [stdout]     |             ----^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `clear_board` is never used
[INFO] [stdout]    --> src/board.rs:490:8
[INFO] [stdout]     |
[INFO] [stdout] 24  | impl Board {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 490 |     fn clear_board(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `random_move` is never used
[INFO] [stdout]   --> src/engine.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn random_move(board: &Board) -> ChessMove {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_random_piece_to_move` is never used
[INFO] [stdout]    --> src/engine.rs:104:4
[INFO] [stdout]     |
[INFO] [stdout] 104 | fn get_random_piece_to_move(board: &Board) -> [usize; 2] {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `is_evaluated` is never read
[INFO] [stdout]    --> src/search.rs:163:9
[INFO] [stdout]     |
[INFO] [stdout] 159 | pub struct Node {
[INFO] [stdout]     |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 163 |     pub is_evaluated: bool, 
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 12.93s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.74
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "999437efa9d003018f589544d0b87ed0bc5b98a644cdc5550370e484522a9193", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "999437efa9d003018f589544d0b87ed0bc5b98a644cdc5550370e484522a9193", kill_on_drop: false }`
[INFO] [stdout] 999437efa9d003018f589544d0b87ed0bc5b98a644cdc5550370e484522a9193
