Add CI job for checking examples

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>

Author: matthiasbeyer

.github/workflows/msrv.yml

@@ -137,3 +137,30 @@ jobs:
         with:
           command: clippy
           args: -- -D warnings
+
+  check-examples:
+    name: Check examples
+    needs: [check]
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        rust:
+          - 1.46.0
+          - stable
+
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v2
+
+      - name: Install toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: ${{ matrix.rust }}
+          override: true
+
+      - name: Run cargo check
+        uses: actions-rs/cargo@v1
+        with:
+          command: check
+          args: --examples
+