Github build action

lib/.github/workflows/rust.yml

@@ -0,0 +1,28 @@
+name: Rust
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    name: Build on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macOS-latest]
+
+    steps:
+      - uses: actions/checkout@v1
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: 1.38.0
+          override: true
+      - name: cargo fetch
+        uses: actions-rs/cargo@v1
+        with:
+          command: fetch
+      - name: Build 
+        uses: actions-rs/cargo@v1
+        with:
+          command: build
+          args: --verbose --release --all 
+