simplify example

.github/workflows/rust.yml

@@ -25,10 +25,20 @@ jobs:
       - name: Install rust toolchain
         run: sudo apt-get install -qy cargo rust-clippy
       - name: install lzma
-        run: sudo apt-get update && sudo apt-get install -y liblzma-dev
+        run: sudo apt-get install -qy liblzma-dev
+      - name: install gcc
+        run: sudo apt-get install -qy gcc make
 
       - name: Run Clippy
         run: cargo clippy
+
+      - name: generate bindings
+        run: ./generate-binding.sh
+      - name: check that generated files did not change
+        run: output=$(git status --porcelain) && [ -z "$output" ]
         
       - name: build
         run: cargo build
+
+      - name: build example
+        run: cd example && make