[INFO] cloning repository https://github.com/Aditya-1304/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/Aditya-1304/chess_engine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAditya-1304%2Fchess_engine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAditya-1304%2Fchess_engine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 33335626b3bb357d49d9df937ca29351284311f6
[INFO] testing Aditya-1304/chess_engine against try#28f95933dc0727396c07b48d0a8cb5211b7fb472 for pr-154065-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAditya-1304%2Fchess_engine" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Aditya-1304/chess_engine
[INFO] finished tweaking git repo https://github.com/Aditya-1304/chess_engine
[INFO] tweaked toml for git repo https://github.com/Aditya-1304/chess_engine written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Aditya-1304/chess_engine on toolchain 28f95933dc0727396c07b48d0a8cb5211b7fb472
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Aditya-1304/chess_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" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 84beb42f25ba6f8a04edb20434e579e769c73fed1c65bc5c6ec30fbb4d5be5a8
[INFO] running `Command { std: "docker" "start" "-a" "84beb42f25ba6f8a04edb20434e579e769c73fed1c65bc5c6ec30fbb4d5be5a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84beb42f25ba6f8a04edb20434e579e769c73fed1c65bc5c6ec30fbb4d5be5a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84beb42f25ba6f8a04edb20434e579e769c73fed1c65bc5c6ec30fbb4d5be5a8", kill_on_drop: false }`
[INFO] [stdout] 84beb42f25ba6f8a04edb20434e579e769c73fed1c65bc5c6ec30fbb4d5be5a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a27ead7be3d9b0bf8a9a16fcc91d4730576236e2546b6761e33d24460ac9744
[INFO] running `Command { std: "docker" "start" "-a" "2a27ead7be3d9b0bf8a9a16fcc91d4730576236e2546b6761e33d24460ac9744", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling memmap2 v0.9.9
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling pyrrhic-rs v0.2.0
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling chess_engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `undo`
[INFO] [stdout]    --> src/board.rs:707:17
[INFO] [stdout]     |
[INFO] [stdout] 707 |             let undo = self.make_move(m);
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_undo`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `alpha` is never read
[INFO] [stdout]    --> src/search.rs:208:25
[INFO] [stdout]     |
[INFO] [stdout] 208 |         let mut alpha = -INF;
[INFO] [stdout]     |                         ^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 233 |                 alpha = -INF;
[INFO] [stdout]     |                 ------------ `alpha` is overwritten here before the previous value is read
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `beta` is never read
[INFO] [stdout]    --> src/search.rs:209:24
[INFO] [stdout]     |
[INFO] [stdout] 209 |         let mut beta = INF;
[INFO] [stdout]     |                        ^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 234 |                 beta = INF;
[INFO] [stdout]     |                 ---------- `beta` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `net`
[INFO] [stdout]    --> src/nnue.rs:905:9
[INFO] [stdout]     |
[INFO] [stdout] 905 |     let net = match NETWORK.get() {
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_net`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `b_features` is assigned to, but never used
[INFO] [stdout]    --> src/nnue.rs:921:9
[INFO] [stdout]     |
[INFO] [stdout] 921 |     let mut b_features = 0usize;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_b_features` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `b_features` is never read
[INFO] [stdout]    --> src/nnue.rs:929:13
[INFO] [stdout]     |
[INFO] [stdout] 929 |             b_features += count;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `key` and `learn` are never read
[INFO] [stdout]   --> src/book.rs:11:3
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Entry {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 11 |   key: u64,
[INFO] [stdout]    |   ^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |   learn: u32,
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Entry` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.16s
[INFO] running `Command { std: "docker" "inspect" "2a27ead7be3d9b0bf8a9a16fcc91d4730576236e2546b6761e33d24460ac9744", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a27ead7be3d9b0bf8a9a16fcc91d4730576236e2546b6761e33d24460ac9744", kill_on_drop: false }`
[INFO] [stdout] 2a27ead7be3d9b0bf8a9a16fcc91d4730576236e2546b6761e33d24460ac9744
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d85fb53b9b0c122a57cc4109e420891315a542ebec8a2de00110e4e46dbdbce8
[INFO] running `Command { std: "docker" "start" "-a" "d85fb53b9b0c122a57cc4109e420891315a542ebec8a2de00110e4e46dbdbce8", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `undo`
[INFO] [stdout]    --> src/board.rs:707:17
[INFO] [stdout]     |
[INFO] [stdout] 707 |             let undo = self.make_move(m);
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_undo`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `alpha` is never read
[INFO] [stdout]    --> src/search.rs:208:25
[INFO] [stdout]     |
[INFO] [stdout] 208 |         let mut alpha = -INF;
[INFO] [stdout]     |                         ^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 233 |                 alpha = -INF;
[INFO] [stdout]     |                 ------------ `alpha` is overwritten here before the previous value is read
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `beta` is never read
[INFO] [stdout]    --> src/search.rs:209:24
[INFO] [stdout]     |
[INFO] [stdout] 209 |         let mut beta = INF;
[INFO] [stdout]     |                        ^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 234 |                 beta = INF;
[INFO] [stdout]     |                 ---------- `beta` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `net`
[INFO] [stdout]    --> src/nnue.rs:905:9
[INFO] [stdout]     |
[INFO] [stdout] 905 |     let net = match NETWORK.get() {
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_net`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling chess_engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `b_features` is assigned to, but never used
[INFO] [stdout]    --> src/nnue.rs:921:9
[INFO] [stdout]     |
[INFO] [stdout] 921 |     let mut b_features = 0usize;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_b_features` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `b_features` is never read
[INFO] [stdout]    --> src/nnue.rs:929:13
[INFO] [stdout]     |
[INFO] [stdout] 929 |             b_features += count;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `key` and `learn` are never read
[INFO] [stdout]   --> src/book.rs:11:3
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Entry {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 11 |   key: u64,
[INFO] [stdout]    |   ^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |   learn: u32,
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Entry` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `undo`
[INFO] [stdout]    --> src/board.rs:707:17
[INFO] [stdout]     |
[INFO] [stdout] 707 |             let undo = self.make_move(m);
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_undo`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `alpha` is never read
[INFO] [stdout]    --> src/search.rs:208:25
[INFO] [stdout]     |
[INFO] [stdout] 208 |         let mut alpha = -INF;
[INFO] [stdout]     |                         ^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 233 |                 alpha = -INF;
[INFO] [stdout]     |                 ------------ `alpha` is overwritten here before the previous value is read
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `beta` is never read
[INFO] [stdout]    --> src/search.rs:209:24
[INFO] [stdout]     |
[INFO] [stdout] 209 |         let mut beta = INF;
[INFO] [stdout]     |                        ^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 234 |                 beta = INF;
[INFO] [stdout]     |                 ---------- `beta` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `net`
[INFO] [stdout]    --> src/nnue.rs:905:9
[INFO] [stdout]     |
[INFO] [stdout] 905 |     let net = match NETWORK.get() {
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_net`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `b_features` is assigned to, but never used
[INFO] [stdout]    --> src/nnue.rs:921:9
[INFO] [stdout]     |
[INFO] [stdout] 921 |     let mut b_features = 0usize;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_b_features` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `b_features` is never read
[INFO] [stdout]    --> src/nnue.rs:929:13
[INFO] [stdout]     |
[INFO] [stdout] 929 |             b_features += count;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `key` and `learn` are never read
[INFO] [stdout]   --> src/book.rs:11:3
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Entry {
[INFO] [stdout]    |        ----- fields in this struct
[INFO] [stdout] 11 |   key: u64,
[INFO] [stdout]    |   ^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |   learn: u32,
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Entry` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.21s
[INFO] running `Command { std: "docker" "inspect" "d85fb53b9b0c122a57cc4109e420891315a542ebec8a2de00110e4e46dbdbce8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d85fb53b9b0c122a57cc4109e420891315a542ebec8a2de00110e4e46dbdbce8", kill_on_drop: false }`
[INFO] [stdout] d85fb53b9b0c122a57cc4109e420891315a542ebec8a2de00110e4e46dbdbce8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9ac25ae715d02e61309d10eb3f6dfb38966c28f362863a7eb73edbee196dc5fc
[INFO] running `Command { std: "docker" "start" "-a" "9ac25ae715d02e61309d10eb3f6dfb38966c28f362863a7eb73edbee196dc5fc", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `undo`
[INFO] [stderr]    --> src/board.rs:707:17
[INFO] [stderr]     |
[INFO] [stderr] 707 |             let undo = self.make_move(m);
[INFO] [stderr]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_undo`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `alpha` is never read
[INFO] [stderr]    --> src/search.rs:208:25
[INFO] [stderr]     |
[INFO] [stderr] 208 |         let mut alpha = -INF;
[INFO] [stderr]     |                         ^^^^ this value is reassigned later and never used
[INFO] [stderr] ...
[INFO] [stderr] 233 |                 alpha = -INF;
[INFO] [stderr]     |                 ------------ `alpha` is overwritten here before the previous value is read
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `beta` is never read
[INFO] [stderr]    --> src/search.rs:209:24
[INFO] [stderr]     |
[INFO] [stderr] 209 |         let mut beta = INF;
[INFO] [stderr]     |                        ^^^ this value is reassigned later and never used
[INFO] [stderr] ...
[INFO] [stderr] 234 |                 beta = INF;
[INFO] [stderr]     |                 ---------- `beta` is overwritten here before the previous value is read
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `net`
[INFO] [stderr]    --> src/nnue.rs:905:9
[INFO] [stderr]     |
[INFO] [stderr] 905 |     let net = match NETWORK.get() {
[INFO] [stderr]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_net`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `b_features` is assigned to, but never used
[INFO] [stderr]    --> src/nnue.rs:921:9
[INFO] [stderr]     |
[INFO] [stderr] 921 |     let mut b_features = 0usize;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_b_features` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `b_features` is never read
[INFO] [stderr]    --> src/nnue.rs:929:13
[INFO] [stderr]     |
[INFO] [stderr] 929 |             b_features += count;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: fields `key` and `learn` are never read
[INFO] [stderr]   --> src/book.rs:11:3
[INFO] [stderr]    |
[INFO] [stderr] 10 | struct Entry {
[INFO] [stderr]    |        ----- fields in this struct
[INFO] [stderr] 11 |   key: u64,
[INFO] [stderr]    |   ^^^
[INFO] [stderr] ...
[INFO] [stderr] 14 |   learn: u32,
[INFO] [stderr]    |   ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Entry` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `chess_engine` (lib) generated 7 warnings (run `cargo fix --lib -p chess_engine` to apply 2 suggestions)
[INFO] [stderr] warning: `chess_engine` (lib test) generated 7 warnings (7 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/chess_engine-757f65cb4917676e)
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/chess_engine-757f65cb4917676e` (signal: 11, SIGSEGV: invalid memory reference)
[INFO] running `Command { std: "docker" "inspect" "9ac25ae715d02e61309d10eb3f6dfb38966c28f362863a7eb73edbee196dc5fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ac25ae715d02e61309d10eb3f6dfb38966c28f362863a7eb73edbee196dc5fc", kill_on_drop: false }`
[INFO] [stdout] 9ac25ae715d02e61309d10eb3f6dfb38966c28f362863a7eb73edbee196dc5fc
