add github workflow

.github/workflows/build.yml

@@ -0,0 +1,12 @@
+on: [push]
+
+jobs:
+  build_and_test:
+    name: Rust project
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+      - run: cargo build --release --all-features