Add a CI workflow

.github/workflows/ci.yml

@@ -0,0 +1,69 @@
+name: CI
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+
+jobs:
+  check-msrv:
+    name: Check
+    strategy:
+      matrix:
+        toolchain:
+          - "1.65"
+          - stable
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v3
+
+      - name: Install toolchain
+        uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: ${{ matrix.toolchain}}
+
+      - uses: Swatinem/rust-cache@v2
+
+      - name: Run cargo check
+        run: cargo check
+
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v3
+
+      - name: Install stable toolchain
+        uses: dtolnay/rust-toolchain@stable
+
+      - uses: Swatinem/rust-cache@v2
+
+      - name: Run cargo test
+        run: cargo test --workspace
+
+  lints:
+    name: Lints
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v3
+
+      - name: Install stable toolchain
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          components: rustfmt, clippy
+
+      - uses: Swatinem/rust-cache@v2
+
+      - name: Run cargo fmt
+        run: cargo fmt --all --check
+
+      - name: Run cargo clippy
+        run: cargo clippy --workspace --all-targets -- -D warnings
+
+      - name: Run cargo doc
+        run: cargo doc --no-deps --workspace --document-private-items
+        env:
+          RUSTDOCFLAGS: -D warnings