Check semver script

.github/workflows/rust.yml

@@ -36,4 +36,19 @@ jobs:
 
     - name: Abort on error
       if: ${{ failure() }}
-      run: echo "Some of jobs failed" && false
+      run: echo "Some of jobs failed" && false
+
+  semver:
+    name: Check semver
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+      - uses: obi1kenobi/cargo-semver-checks-action@v2