check unstable

Author: dignifiedquire

Diff for: .github/workflows/ci.yml

@@ -187,8 +187,14 @@ jobs:
       uses: actions-rs/cargo@v1
       with:
         command: check
-        args: --target wasm32-unknown-unknown
+        args: --target wasm32-unknown-unknown 
 
+    - name: check unstable
+      uses: actions-rs/cargo@v1
+      with:
+        command: check
+        args: --target wasm32-unknown-unknown --tests --all --features unstable
+        
   check_fmt_and_docs:
     name: Checking fmt and docs
     runs-on: ubuntu-latest