Try more verbose output

Author: itziakos

appveyor.yml

@@ -39,10 +39,9 @@ cache:
 init:
   - ps: $Env:path = $Env:PYTHON + ";" + $Env:PYTHON + "/Scripts;" + $Env:path
 install:
-  - cmd: c:\python26-x64\python.exe -V
   - cmd: python -m pip install -rtox-requirements.txt
 test_script:
-  - python -m tox -v
+  - python -m tox -vvv
 on_success:
   - python -m pip install codecov
   - python -m codecov