- debug why the arm build could have gone wrong

Author: fbergmann

.github/workflows/wheels.yml

@@ -39,6 +39,7 @@ jobs:
       env:
           CIBW_BUILD: ${{ matrix.python_version }}
           CIBW_ARCHS_MACOS: x86_64 arm64
+          CIBW_BUILD_VERBOSITY: 3
 
     - name: Upload wheels
       uses: actions/upload-artifact@v2