Setup GitHub Actions

.github/workflows/test.yaml

@@ -0,0 +1,19 @@
+name: Check
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macOS-latest, windows-latest]
+        rust: [stable, nightly]
+    steps:
+    - uses: hecrj/setup-rust-action@v1
+      with:
+        rust-version: ${{ matrix.rust }}
+    - uses: actions/checkout@v2
+    - name: Run tests
+      run: make test
+