Switch to github actions

Author: GuillaumeGomez

.github/workflows/CI.yml

@@ -0,0 +1,57 @@
+on:
+  push:
+    branches: [master]
+  pull_request:
+
+name: CI
+
+jobs:
+  rustfmt:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+          components: rustfmt
+      - run: cargo fmt -- --check
+
+  clippy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: nightly
+          override: true
+          components: clippy
+      - run: cargo clippy -- -D warnings
+
+  check:
+    name: Check ${{ matrix.toolchain }} / ${{ matrix.triple.target }}
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        toolchain:
+          - stable
+          - nightly
+    steps:
+      - uses: actions/checkout@v2
+      - name: Install toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: ${{ matrix.toolchain }}
+          override: true
+      - name: Check build
+        run: cargo build
+      - name: Run tests
+        run: cargo test
+      - name: Build doc
+        run: cargo doc
+      - name: Run tests (with "html" feature)
+        run: cargo test --features "html"