debug C/C++ linkage for bindings

Author: extiop

.github/workflows/test.yml

@@ -106,7 +106,10 @@ jobs:
     - uses: actions/checkout@v2
     - uses: actions-rs/toolchain@v1
       with:
-        toolchain: stable
+        # tmp for debug
+        toolchain: 1.82
+        default: true
+        # toolchain: stable
         target: ${{ matrix.target }}
     - uses: microsoft/[email protected]
     - name: Compile C/CPP bindings test program for Windows