mac and windows github builds (#1817)

.github/workflows/build.yml

@@ -1,4 +1,4 @@
-on: [ push, pull_request ]
+on: [ push ]
 
 jobs:
   build_ubuntu:
@@ -19,6 +19,14 @@ jobs:
     - name: checkout
       uses: actions/checkout@v3
 
+    - name: Install Rust Toolchain
+      uses: actions-rs/toolchain@v1
+      with:
+        toolchain: stable
+        target: aarch64-apple-darwin
+        override: true
+        components: rustfmt, clippy
+
     - name: make
       run: make