Test Rust crate

.github/workflows/test.yml

@@ -22,6 +22,9 @@ jobs:
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: 3.0
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
 
       - name: dependencies
         run: sudo apt-get -y install clang tcc
@@ -46,6 +49,10 @@ jobs:
         working-directory: pkgs/ruby
         run: rake
 
+      - name: test
+        working-directory: pkgs/rust
+        run: cargo test
+
   cppcheck:
     runs-on: ubuntu-latest
     steps: