Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/0b31bfafd84f4043a36448b9b2984c7d : SUCCESS in 4m 44s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/a12434347e5947deb406eeac99d9c528 : SUCCESS in 4m 06s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a5aacbd1a5cb42bba7cae48b5d054ad3 : FAILURE in 5m 06s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/ce6c497982654386b240c9b62ee50923 : SUCCESS in 9m 07s