[INFO] cloning repository https://github.com/morphmeme/rust-4dchess
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/morphmeme/rust-4dchess" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmorphmeme%2Frust-4dchess", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmorphmeme%2Frust-4dchess'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a7525ebac4ab5eecb737e42a601bd471889321dd
[INFO] testing morphmeme/rust-4dchess against 1.85.0 for beta-1.86-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmorphmeme%2Frust-4dchess" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/morphmeme/rust-4dchess on toolchain 1.85.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.85.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/morphmeme/rust-4dchess
[INFO] finished tweaking git repo https://github.com/morphmeme/rust-4dchess
[INFO] tweaked toml for git repo https://github.com/morphmeme/rust-4dchess written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/morphmeme/rust-4dchess 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" "+1.85.0" "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 anyhow v1.0.21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+1.85.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 836be97986a59d9da9704b4f529404fca407d361ae7b62b332eb60d900811379
[INFO] running `Command { std: "docker" "start" "-a" "836be97986a59d9da9704b4f529404fca407d361ae7b62b332eb60d900811379", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "836be97986a59d9da9704b4f529404fca407d361ae7b62b332eb60d900811379", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "836be97986a59d9da9704b4f529404fca407d361ae7b62b332eb60d900811379", kill_on_drop: false }`
[INFO] [stdout] 836be97986a59d9da9704b4f529404fca407d361ae7b62b332eb60d900811379
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+1.85.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e833bac6cd1c00a98f6686888094fda7be9c4648700d5064744e5a52d2e27685
[INFO] running `Command { std: "docker" "start" "-a" "e833bac6cd1c00a98f6686888094fda7be9c4648700d5064744e5a52d2e27685", 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 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.54
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling bumpalo v2.6.0
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling anyhow v1.0.21
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.54
[INFO] [stderr]    Compiling sourcefile v0.1.4
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling itertools v0.8.1
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling weedle v0.10.0
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.54
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.54
[INFO] [stderr]    Compiling wasm-bindgen-webidl v0.2.54
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.54
[INFO] [stderr]    Compiling web-sys v0.3.31
[INFO] [stderr]    Compiling js-sys v0.3.31
[INFO] [stderr]    Compiling console_error_panic_hook v0.1.6
[INFO] [stderr]    Compiling rust-webpack-template v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Turn`, `evaluate_side`, `evaluate_state`, `minimax_recursion`, and `piece_strength`
[INFO] [stdout]  --> src/main.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::ai::{piece_strength, Turn, evaluate_side, evaluate_state, minimax_recursion};
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^  ^^^^  ^^^^^^^^^^^^^  ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::engine::Piece`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::engine::Piece;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `board`
[INFO] [stdout]  --> src/main.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut board = Board::init_board();
[INFO] [stdout]   |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut board = Board::init_board();
[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: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:457:34
[INFO] [stdout]     |
[INFO] [stdout] 457 |                 for positions in self.piece_sets.get(piece) {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 457 |                 while let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |                 ~~~~~~~~~~~~~~~         ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 457 |                 if let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |                 ~~~~~~~~~~~~         ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:466:34
[INFO] [stdout]     |
[INFO] [stdout] 466 |                 for positions in self.piece_sets.get(piece) {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 466 |                 while let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |                 ~~~~~~~~~~~~~~~         ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 466 |                 if let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |                 ~~~~~~~~~~~~         ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:518:20
[INFO] [stdout]     |
[INFO] [stdout] 518 |         for set in self.piece_sets.get(piece) {
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 518 |         while let Some(set) = self.piece_sets.get(piece) {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~   ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 518 |         if let Some(set) = self.piece_sets.get(piece) {
[INFO] [stdout]     |         ~~~~~~~~~~~~   ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:691:30
[INFO] [stdout]     |
[INFO] [stdout] 691 |             for positions in self.piece_sets.get(piece) {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 691 |             while let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |             ~~~~~~~~~~~~~~~         ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 691 |             if let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |             ~~~~~~~~~~~~         ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:741:30
[INFO] [stdout]     |
[INFO] [stdout] 741 |             for positions in self.piece_sets.get(piece) {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 741 |             while let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |             ~~~~~~~~~~~~~~~         ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 741 |             if let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |             ~~~~~~~~~~~~         ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:975:27
[INFO] [stdout]     |
[INFO] [stdout] 975 |             for pieces in self.piece_sets.get(white_set) {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 975 |             while let Some(pieces) = self.piece_sets.get(white_set) {
[INFO] [stdout]     |             ~~~~~~~~~~~~~~~      ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 975 |             if let Some(pieces) = self.piece_sets.get(white_set) {
[INFO] [stdout]     |             ~~~~~~~~~~~~      ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:987:27
[INFO] [stdout]     |
[INFO] [stdout] 987 |             for pieces in self.piece_sets.get(black_set) {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 987 |             while let Some(pieces) = self.piece_sets.get(black_set) {
[INFO] [stdout]     |             ~~~~~~~~~~~~~~~      ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 987 |             if let Some(pieces) = self.piece_sets.get(black_set) {
[INFO] [stdout]     |             ~~~~~~~~~~~~      ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:457:34
[INFO] [stdout]     |
[INFO] [stdout] 457 |                 for positions in self.piece_sets.get(piece) {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 457 |                 while let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |                 ~~~~~~~~~~~~~~~         ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 457 |                 if let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |                 ~~~~~~~~~~~~         ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:466:34
[INFO] [stdout]     |
[INFO] [stdout] 466 |                 for positions in self.piece_sets.get(piece) {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 466 |                 while let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |                 ~~~~~~~~~~~~~~~         ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 466 |                 if let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |                 ~~~~~~~~~~~~         ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:518:20
[INFO] [stdout]     |
[INFO] [stdout] 518 |         for set in self.piece_sets.get(piece) {
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 518 |         while let Some(set) = self.piece_sets.get(piece) {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~   ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 518 |         if let Some(set) = self.piece_sets.get(piece) {
[INFO] [stdout]     |         ~~~~~~~~~~~~   ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:691:30
[INFO] [stdout]     |
[INFO] [stdout] 691 |             for positions in self.piece_sets.get(piece) {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 691 |             while let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |             ~~~~~~~~~~~~~~~         ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 691 |             if let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |             ~~~~~~~~~~~~         ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:741:30
[INFO] [stdout]     |
[INFO] [stdout] 741 |             for positions in self.piece_sets.get(piece) {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 741 |             while let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |             ~~~~~~~~~~~~~~~         ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 741 |             if let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |             ~~~~~~~~~~~~         ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:975:27
[INFO] [stdout]     |
[INFO] [stdout] 975 |             for pieces in self.piece_sets.get(white_set) {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 975 |             while let Some(pieces) = self.piece_sets.get(white_set) {
[INFO] [stdout]     |             ~~~~~~~~~~~~~~~      ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 975 |             if let Some(pieces) = self.piece_sets.get(white_set) {
[INFO] [stdout]     |             ~~~~~~~~~~~~      ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:987:27
[INFO] [stdout]     |
[INFO] [stdout] 987 |             for pieces in self.piece_sets.get(black_set) {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 987 |             while let Some(pieces) = self.piece_sets.get(black_set) {
[INFO] [stdout]     |             ~~~~~~~~~~~~~~~      ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 987 |             if let Some(pieces) = self.piece_sets.get(black_set) {
[INFO] [stdout]     |             ~~~~~~~~~~~~      ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 27.47s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v4.2.3, wasm-bindgen v0.2.54
[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" "e833bac6cd1c00a98f6686888094fda7be9c4648700d5064744e5a52d2e27685", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e833bac6cd1c00a98f6686888094fda7be9c4648700d5064744e5a52d2e27685", kill_on_drop: false }`
[INFO] [stdout] e833bac6cd1c00a98f6686888094fda7be9c4648700d5064744e5a52d2e27685
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+1.85.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5d3538e70cdc621a919cf2a81d5a41ebb1bbad5816cb82ca43aedc1bab5d07d
[INFO] running `Command { std: "docker" "start" "-a" "d5d3538e70cdc621a919cf2a81d5a41ebb1bbad5816cb82ca43aedc1bab5d07d", 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 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling futures v0.1.29
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stdout] warning: unused imports: `Turn`, `evaluate_side`, `evaluate_state`, `minimax_recursion`, and `piece_strength`
[INFO] [stdout]  --> src/main.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::ai::{piece_strength, Turn, evaluate_side, evaluate_state, minimax_recursion};
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^  ^^^^  ^^^^^^^^^^^^^  ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::engine::Piece`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::engine::Piece;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `board`
[INFO] [stdout]  --> src/main.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut board = Board::init_board();
[INFO] [stdout]   |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut board = Board::init_board();
[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: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:457:34
[INFO] [stdout]     |
[INFO] [stdout] 457 |                 for positions in self.piece_sets.get(piece) {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 457 |                 while let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |                 ~~~~~~~~~~~~~~~         ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 457 |                 if let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |                 ~~~~~~~~~~~~         ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:466:34
[INFO] [stdout]     |
[INFO] [stdout] 466 |                 for positions in self.piece_sets.get(piece) {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 466 |                 while let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |                 ~~~~~~~~~~~~~~~         ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 466 |                 if let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |                 ~~~~~~~~~~~~         ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:518:20
[INFO] [stdout]     |
[INFO] [stdout] 518 |         for set in self.piece_sets.get(piece) {
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 518 |         while let Some(set) = self.piece_sets.get(piece) {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~   ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 518 |         if let Some(set) = self.piece_sets.get(piece) {
[INFO] [stdout]     |         ~~~~~~~~~~~~   ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:691:30
[INFO] [stdout]     |
[INFO] [stdout] 691 |             for positions in self.piece_sets.get(piece) {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 691 |             while let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |             ~~~~~~~~~~~~~~~         ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 691 |             if let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |             ~~~~~~~~~~~~         ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:741:30
[INFO] [stdout]     |
[INFO] [stdout] 741 |             for positions in self.piece_sets.get(piece) {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 741 |             while let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |             ~~~~~~~~~~~~~~~         ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 741 |             if let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |             ~~~~~~~~~~~~         ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:975:27
[INFO] [stdout]     |
[INFO] [stdout] 975 |             for pieces in self.piece_sets.get(white_set) {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 975 |             while let Some(pieces) = self.piece_sets.get(white_set) {
[INFO] [stdout]     |             ~~~~~~~~~~~~~~~      ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 975 |             if let Some(pieces) = self.piece_sets.get(white_set) {
[INFO] [stdout]     |             ~~~~~~~~~~~~      ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:987:27
[INFO] [stdout]     |
[INFO] [stdout] 987 |             for pieces in self.piece_sets.get(black_set) {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 987 |             while let Some(pieces) = self.piece_sets.get(black_set) {
[INFO] [stdout]     |             ~~~~~~~~~~~~~~~      ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 987 |             if let Some(pieces) = self.piece_sets.get(black_set) {
[INFO] [stdout]     |             ~~~~~~~~~~~~      ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.2.50
[INFO] [stderr]    Compiling wasm-bindgen-futures v0.3.27
[INFO] [stderr]    Compiling wasm-bindgen-test v0.2.50
[INFO] [stderr]    Compiling rust-webpack-template v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Turn`, `evaluate_side`, `evaluate_state`, `minimax_recursion`, and `piece_strength`
[INFO] [stdout]  --> src/main.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::ai::{piece_strength, Turn, evaluate_side, evaluate_state, minimax_recursion};
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^  ^^^^  ^^^^^^^^^^^^^  ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::engine::Piece`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::engine::Piece;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:457:34
[INFO] [stdout]     |
[INFO] [stdout] 457 |                 for positions in self.piece_sets.get(piece) {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 457 |                 while let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |                 ~~~~~~~~~~~~~~~         ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 457 |                 if let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |                 ~~~~~~~~~~~~         ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:466:34
[INFO] [stdout]     |
[INFO] [stdout] 466 |                 for positions in self.piece_sets.get(piece) {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 466 |                 while let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |                 ~~~~~~~~~~~~~~~         ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 466 |                 if let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |                 ~~~~~~~~~~~~         ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:518:20
[INFO] [stdout]     |
[INFO] [stdout] 518 |         for set in self.piece_sets.get(piece) {
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 518 |         while let Some(set) = self.piece_sets.get(piece) {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~   ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 518 |         if let Some(set) = self.piece_sets.get(piece) {
[INFO] [stdout]     |         ~~~~~~~~~~~~   ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:691:30
[INFO] [stdout]     |
[INFO] [stdout] 691 |             for positions in self.piece_sets.get(piece) {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 691 |             while let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |             ~~~~~~~~~~~~~~~         ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 691 |             if let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |             ~~~~~~~~~~~~         ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:741:30
[INFO] [stdout]     |
[INFO] [stdout] 741 |             for positions in self.piece_sets.get(piece) {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 741 |             while let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |             ~~~~~~~~~~~~~~~         ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 741 |             if let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |             ~~~~~~~~~~~~         ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:975:27
[INFO] [stdout]     |
[INFO] [stdout] 975 |             for pieces in self.piece_sets.get(white_set) {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 975 |             while let Some(pieces) = self.piece_sets.get(white_set) {
[INFO] [stdout]     |             ~~~~~~~~~~~~~~~      ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 975 |             if let Some(pieces) = self.piece_sets.get(white_set) {
[INFO] [stdout]     |             ~~~~~~~~~~~~      ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:987:27
[INFO] [stdout]     |
[INFO] [stdout] 987 |             for pieces in self.piece_sets.get(black_set) {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 987 |             while let Some(pieces) = self.piece_sets.get(black_set) {
[INFO] [stdout]     |             ~~~~~~~~~~~~~~~      ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 987 |             if let Some(pieces) = self.piece_sets.get(black_set) {
[INFO] [stdout]     |             ~~~~~~~~~~~~      ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `board`
[INFO] [stdout]  --> src/main.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut board = Board::init_board();
[INFO] [stdout]   |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut board = Board::init_board();
[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: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:457:34
[INFO] [stdout]     |
[INFO] [stdout] 457 |                 for positions in self.piece_sets.get(piece) {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 457 |                 while let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |                 ~~~~~~~~~~~~~~~         ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 457 |                 if let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |                 ~~~~~~~~~~~~         ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:466:34
[INFO] [stdout]     |
[INFO] [stdout] 466 |                 for positions in self.piece_sets.get(piece) {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 466 |                 while let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |                 ~~~~~~~~~~~~~~~         ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 466 |                 if let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |                 ~~~~~~~~~~~~         ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:518:20
[INFO] [stdout]     |
[INFO] [stdout] 518 |         for set in self.piece_sets.get(piece) {
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 518 |         while let Some(set) = self.piece_sets.get(piece) {
[INFO] [stdout]     |         ~~~~~~~~~~~~~~~   ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 518 |         if let Some(set) = self.piece_sets.get(piece) {
[INFO] [stdout]     |         ~~~~~~~~~~~~   ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:691:30
[INFO] [stdout]     |
[INFO] [stdout] 691 |             for positions in self.piece_sets.get(piece) {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 691 |             while let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |             ~~~~~~~~~~~~~~~         ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 691 |             if let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |             ~~~~~~~~~~~~         ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:741:30
[INFO] [stdout]     |
[INFO] [stdout] 741 |             for positions in self.piece_sets.get(piece) {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 741 |             while let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |             ~~~~~~~~~~~~~~~         ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 741 |             if let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stdout]     |             ~~~~~~~~~~~~         ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:975:27
[INFO] [stdout]     |
[INFO] [stdout] 975 |             for pieces in self.piece_sets.get(white_set) {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 975 |             while let Some(pieces) = self.piece_sets.get(white_set) {
[INFO] [stdout]     |             ~~~~~~~~~~~~~~~      ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 975 |             if let Some(pieces) = self.piece_sets.get(white_set) {
[INFO] [stdout]     |             ~~~~~~~~~~~~      ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/engine.rs:987:27
[INFO] [stdout]     |
[INFO] [stdout] 987 |             for pieces in self.piece_sets.get(black_set) {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 987 |             while let Some(pieces) = self.piece_sets.get(black_set) {
[INFO] [stdout]     |             ~~~~~~~~~~~~~~~      ~~~
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 987 |             if let Some(pieces) = self.piece_sets.get(black_set) {
[INFO] [stdout]     |             ~~~~~~~~~~~~      ~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 5.23s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v4.2.3, wasm-bindgen v0.2.54
[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" "d5d3538e70cdc621a919cf2a81d5a41ebb1bbad5816cb82ca43aedc1bab5d07d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5d3538e70cdc621a919cf2a81d5a41ebb1bbad5816cb82ca43aedc1bab5d07d", kill_on_drop: false }`
[INFO] [stdout] d5d3538e70cdc621a919cf2a81d5a41ebb1bbad5816cb82ca43aedc1bab5d07d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+1.85.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fe1b45888465052973e4e3cfc5556d0367b58e12f8abca522eba3c5de9408005
[INFO] running `Command { std: "docker" "start" "-a" "fe1b45888465052973e4e3cfc5556d0367b58e12f8abca522eba3c5de9408005", 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] warning: unused imports: `Turn`, `evaluate_side`, `evaluate_state`, `minimax_recursion`, and `piece_strength`
[INFO] [stderr]  --> src/main.rs:1:17
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::ai::{piece_strength, Turn, evaluate_side, evaluate_state, minimax_recursion};
[INFO] [stderr]   |                 ^^^^^^^^^^^^^^  ^^^^  ^^^^^^^^^^^^^  ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::engine::Piece`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::engine::Piece;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `board`
[INFO] [stderr]  --> src/main.rs:9:13
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let mut board = Board::init_board();
[INFO] [stderr]   |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_board`
[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:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     let mut board = Board::init_board();
[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: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stderr]    --> src/engine.rs:457:34
[INFO] [stderr]     |
[INFO] [stderr] 457 |                 for positions in self.piece_sets.get(piece) {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stderr] help: to check pattern in a loop use `while let`
[INFO] [stderr]     |
[INFO] [stderr] 457 |                 while let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stderr]     |                 ~~~~~~~~~~~~~~~         ~~~
[INFO] [stderr] help: consider using `if let` to clear intent
[INFO] [stderr]     |
[INFO] [stderr] 457 |                 if let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stderr]     |                 ~~~~~~~~~~~~         ~~~
[INFO] [stderr] 
[INFO] [stderr] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stderr]    --> src/engine.rs:466:34
[INFO] [stderr]     |
[INFO] [stderr] 466 |                 for positions in self.piece_sets.get(piece) {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] help: to check pattern in a loop use `while let`
[INFO] [stderr]     |
[INFO] [stderr] 466 |                 while let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stderr]     |                 ~~~~~~~~~~~~~~~         ~~~
[INFO] [stderr] help: consider using `if let` to clear intent
[INFO] [stderr]     |
[INFO] [stderr] 466 |                 if let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stderr]     |                 ~~~~~~~~~~~~         ~~~
[INFO] [stderr] 
[INFO] [stderr] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stderr]    --> src/engine.rs:518:20
[INFO] [stderr]     |
[INFO] [stderr] 518 |         for set in self.piece_sets.get(piece) {
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] help: to check pattern in a loop use `while let`
[INFO] [stderr]     |
[INFO] [stderr] 518 |         while let Some(set) = self.piece_sets.get(piece) {
[INFO] [stderr]     |         ~~~~~~~~~~~~~~~   ~~~
[INFO] [stderr] help: consider using `if let` to clear intent
[INFO] [stderr]     |
[INFO] [stderr] 518 |         if let Some(set) = self.piece_sets.get(piece) {
[INFO] [stderr]     |         ~~~~~~~~~~~~   ~~~
[INFO] [stderr] 
[INFO] [stderr] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stderr]    --> src/engine.rs:691:30
[INFO] [stderr]     |
[INFO] [stderr] 691 |             for positions in self.piece_sets.get(piece) {
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] help: to check pattern in a loop use `while let`
[INFO] [stderr]     |
[INFO] [stderr] 691 |             while let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stderr]     |             ~~~~~~~~~~~~~~~         ~~~
[INFO] [stderr] help: consider using `if let` to clear intent
[INFO] [stderr]     |
[INFO] [stderr] 691 |             if let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stderr]     |             ~~~~~~~~~~~~         ~~~
[INFO] [stderr] 
[INFO] [stderr] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stderr]    --> src/engine.rs:741:30
[INFO] [stderr]     |
[INFO] [stderr] 741 |             for positions in self.piece_sets.get(piece) {
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] help: to check pattern in a loop use `while let`
[INFO] [stderr]     |
[INFO] [stderr] 741 |             while let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stderr]     |             ~~~~~~~~~~~~~~~         ~~~
[INFO] [stderr] help: consider using `if let` to clear intent
[INFO] [stderr]     |
[INFO] [stderr] 741 |             if let Some(positions) = self.piece_sets.get(piece) {
[INFO] [stderr]     |             ~~~~~~~~~~~~         ~~~
[INFO] [stderr] 
[INFO] [stderr] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stderr]    --> src/engine.rs:975:27
[INFO] [stderr]     |
[INFO] [stderr] 975 |             for pieces in self.piece_sets.get(white_set) {
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] help: to check pattern in a loop use `while let`
[INFO] [stderr]     |
[INFO] [stderr] 975 |             while let Some(pieces) = self.piece_sets.get(white_set) {
[INFO] [stderr]     |             ~~~~~~~~~~~~~~~      ~~~
[INFO] [stderr] help: consider using `if let` to clear intent
[INFO] [stderr]     |
[INFO] [stderr] 975 |             if let Some(pieces) = self.piece_sets.get(white_set) {
[INFO] [stderr]     |             ~~~~~~~~~~~~      ~~~
[INFO] [stderr] 
[INFO] [stderr] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stderr]    --> src/engine.rs:987:27
[INFO] [stderr]     |
[INFO] [stderr] 987 |             for pieces in self.piece_sets.get(black_set) {
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] help: to check pattern in a loop use `while let`
[INFO] [stderr]     |
[INFO] [stderr] 987 |             while let Some(pieces) = self.piece_sets.get(black_set) {
[INFO] [stderr]     |             ~~~~~~~~~~~~~~~      ~~~
[INFO] [stderr] help: consider using `if let` to clear intent
[INFO] [stderr]     |
[INFO] [stderr] 987 |             if let Some(pieces) = self.piece_sets.get(black_set) {
[INFO] [stderr]     |             ~~~~~~~~~~~~      ~~~
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-webpack-template` (bin "rust-webpack-template" test) generated 11 warnings (run `cargo fix --bin "rust-webpack-template" --tests` to apply 3 suggestions)
[INFO] [stderr] warning: `rust-webpack-template` (lib test) generated 7 warnings (7 duplicates)
[INFO] [stderr] warning: `rust-webpack-template` (bin "rust-webpack-template") generated 11 warnings (11 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v4.2.3, wasm-bindgen v0.2.54
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_webpack_template-f24038bcf4be9cce)
[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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_webpack_template-86b0deaf9b9e5c75)
[INFO] [stderr]      Running tests/app.rs (/opt/rustwide/target/debug/deps/app-98806d35db2fa52e)
[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] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test rust_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fe1b45888465052973e4e3cfc5556d0367b58e12f8abca522eba3c5de9408005", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe1b45888465052973e4e3cfc5556d0367b58e12f8abca522eba3c5de9408005", kill_on_drop: false }`
[INFO] [stdout] fe1b45888465052973e4e3cfc5556d0367b58e12f8abca522eba3c5de9408005