add durations to pytest

Author: Dan Choi

buildspec.yml

@@ -31,7 +31,7 @@ phases:
       # run integration tests
       - |
         if has-matching-changes "tests/" "src/*.py" "setup.py" "setup.cfg" "buildspec.yml"; then
-          IGNORE_COVERAGE=- tox -e py36,py27 -- tests/integ -n 24 --boxed --reruns 2
+          IGNORE_COVERAGE=- tox -e py36,py27 -- tests/integ -n 24 --boxed --reruns 2 --durations=0
         else
           echo "skipping integration tests"
         fi