cargo rustc --release --no-default-features --features release -- -C target-cpu=native --emit link=Tcheran-813BBACE Compiling proc-macro2 v1.0.92 Compiling unicode-ident v1.0.14 Compiling libc v0.2.167 Compiling quote v1.0.37 Compiling byteorder v1.5.0 Compiling syn v2.0.90 Compiling cfg-if v1.0.0 Compiling getrandom v0.2.15 Compiling shlex v1.3.0 Compiling cc v1.2.2 Compiling rand_core v0.6.4 Compiling engine v5.0.0 (/tmp/tmpffwd2x5k/Tcheran/Tcheran-tmp) Compiling lazy_static v1.5.0 Compiling memchr v2.7.4 Compiling zerocopy-derive v0.7.35 Compiling minimal-lexical v0.2.1 Compiling nom v7.1.3 Compiling zerocopy v0.7.35 Compiling ppv-lite86 v0.2.20 Compiling rand_chacha v0.3.1 Compiling rand v0.8.5 Compiling colored v2.1.0 Compiling arrayvec v0.7.6 error: expected expression, found `let` statement --> src/engine/eval/pawn_structure.rs:20:16 | 20 | let eval = let eval = eval_passed_pawns(game) + evaluate_doubled_pawns(game); | ^^^ | = note: only supported directly in conditions of `if` and `while` expressions error: could not compile `engine` (bin "engine") due to 1 previous error make: *** [Makefile:10: openbench] Error 101