Adding verbose build to wheel builds

Author: henryiii

.ci/azure-wheel-helpers/azure-steps.yml

@@ -9,12 +9,12 @@ steps:
     call "C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\VC\Auxiliary\Build\vcvarsall.bat" $(python.architecture)
     set MSSdk=1
     set DISTUTILS_USE_SDK=1
-    python -m pip wheel . -w wheelhouse/
+    python -m pip wheel -v . -w wheelhouse/
   displayName: 'Build wheel (Windows Python 2.7)'
   condition: and(succeeded(), eq(variables['Agent.OS'], 'Windows_NT'), eq(variables['python.version'], '2.7')) 
 
 - script: |
-    python -m pip wheel . -w wheelhouse/
+    python -m pip wheel -v . -w wheelhouse/
   displayName: 'Build wheel'
   condition: and(succeeded(), not(and(eq(variables['Agent.OS'], 'Windows_NT'), eq(variables['python.version'], '2.7'))))
 

.ci/azure-wheel-helpers/build-wheels.sh

@@ -26,7 +26,7 @@ echo "Using Pythons: ${pys[@]}"
 # Compile wheels
 for PYBIN in "${pys[@]}"; do
     "${PYBIN}/pip" install -r /io/$dev_requirements_file
-    "${PYBIN}/pip" wheel /io/ -w wheelhouse/
+    "${PYBIN}/pip" wheel -v /io/ -w wheelhouse/
 done
 
 # Bundle external shared libraries into the wheels