ci.yml: Add a MSRV job

Signed-off-by: Tomás González <[email protected]>

Author: tgonzalezorlandoarm

.github/workflows/ci.yml

@@ -8,6 +8,24 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
+    - name: Install latest Rust
+      uses: actions-rust-lang/setup-rust-toolchain@v1
+      with:
+        toolchain: stable
+        rustflags: ""
+    - name: Execute all tests
+      run: ./tests/ci.sh
+
+  build-msrv:
+    name: MSRV - Build and check formatting
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Install Rust MSRV
+      uses: actions-rust-lang/setup-rust-toolchain@v1
+      with:
+        toolchain: 1.66.0
+        rustflags: ""
     - name: Execute all tests
       run: ./tests/ci.sh