Build failed. https://zuul.opendev.org/t/openstack/buildset/20d668630e1a4c52af0d858b44f9c2a6 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/49254bde112049c5acb1b22bae103eec : SUCCESS in 2m 50s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/4c5eaf05ae2f4847a9bb6aac36f33e7b : FAILURE in 3m 14s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/48f9b906e3374fe0b044d7c347c1694c : SUCCESS in 3m 00s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/1984c85147f744ffa0393ed3ffb6d254 : FAILURE in 2m 33s