Run CI tests on windows, macos, and linux

type: testing

.github/workflows/rust.yaml

@@ -2,13 +2,31 @@ name: Rust
 
 on: [push]
 
+# - name: Prepare - macOS
+#   if: matrix.os == 'macos-latest'
+#   run: |
+#     curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
+# - name: Update
+#   run: rustup update stable
+
 jobs:
   build:
-    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        os:
+        - macos-latest
+        - ubuntu-latest
+        - windows-latest
+    runs-on: ${{matrix.os}}
     steps:
     - uses: actions/checkout@v1
-    - name: Update
+    - name: Install
-      run: rustup update stable
+      uses: actions-rs/toolchain@v1
+      with:
+        toolchain: stable
+        profile: minimal
+        components: clippy
+        override: true
     - name: Version
       run: |
         rustup --version