Build failed. https://zuul.opendev.org/t/openstack/buildset/785492e14f194d8db6cde089b1b70433 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/17e2494c594940cfa18aeca3aae8f4ae : SUCCESS in 3m 56s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/8d689e5df5034173b5c51c4cb30b7089 : FAILURE in 2m 55s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e35ca302ae6d420c80751edee2a216ca : SUCCESS in 3m 30s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/67ada607edd6404585bf895e96a0ff23 : SUCCESS in 3m 57s