Adding verbosity to see which test is stalling the CI on ubuntu

Author: moderouin

tox.ini

@@ -33,7 +33,7 @@ deps =
     mypy
     types-setuptools
 commands =
-    python -m pytest --cov-report term-missing --cov=axelrod --cov-fail-under=100 -n auto . --doctest-glob="*.md" --doctest-glob="*.rst"
+    python -m pytest -vvvvv --cov-report term-missing --cov=axelrod --cov-fail-under=100 . --doctest-glob="*.md" --doctest-glob="*.rst"
     python -m black -l 80 . --check
     python -m isort --check-only axelrod/.
     python run_mypy.py