use cargo build --lib

Author: alexreinking

Formula/w/wgpu-native.rb

@@ -13,7 +13,7 @@ class WgpuNative < Formula
 
   def install
     # Not using `cargo install` because wgpu-native doesn't ship binaries
-    system "cargo", "build", "--release", "--locked"
+    system "cargo", "build", "--jobs", ENV.make_jobs, "--lib", "--release", "--locked"
 
     # Manually install artifacts
     include.install "ffi/webgpu-headers/webgpu.h"