Add initial Github Actions CI

.github/workflows/ci.yml

@@ -0,0 +1,68 @@
+name: CI
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build-stable:
+    name: Rust Stable
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [macos-latest, ubuntu-latest, windows-latest]
+    steps:
+    - uses: actions/checkout@v2
+    - name: Install stable toolchain
+      uses: actions-rs/toolchain@v1
+      with:
+        toolchain: stable
+        override: true
+    - name: Build
+      run: cargo build --verbose
+    - name: Run tests
+      run: cargo test --verbose
+    - name: Build Docs
+      run: cargo doc
+
+  build-beta:
+    name: Rust Beta
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [macos-latest, ubuntu-latest, windows-latest]
+    steps:
+    - uses: actions/checkout@v2
+    - name: Install beta toolchain
+      uses: actions-rs/toolchain@v1
+      with:
+        toolchain: beta
+        override: true
+    - name: Build
+      run: cargo build --verbose
+    - name: Run tests
+      run: cargo test --verbose
+    - name: Build Docs
+      run: cargo doc
+
+  build-nightly:
+    name: Rust Nightly
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [macos-latest, ubuntu-latest, windows-latest]
+    steps:
+    - uses: actions/checkout@v2
+    - name: Install nightly toolchain
+      uses: actions-rs/toolchain@v1
+      with:
+        toolchain: nightly
+        override: true
+    - name: Build
+      run: cargo build --verbose
+    - name: Run tests
+      run: cargo test --verbose
+    - name: Build Docs
+      run: cargo doc