Build failed. https://zuul.opendev.org/t/openstack/buildset/b40e7dbbe5ee411ba7239ee376830f29 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f52c19cb14614c44ada00851afaee57d : SUCCESS in 3m 26s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/5fa3e30ee47b4d4cb9fbca8c625dfad4 : FAILURE in 2m 48s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/23c389d17c804142a43bbfe165886d8e : SUCCESS in 3m 25s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/94757a08dcb54d77a75b5b55f4e84563 : SUCCESS in 3m 14s