Build failed. https://zuul.opendev.org/t/openstack/buildset/c78eff0e10ba433a8e17636d854878b5 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/9dcf885b855547dbb445a29e4b3fef19 : SUCCESS in 3m 07s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/51946b0499df4ace98eaac9ab5462cc2 : SUCCESS in 2m 46s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/8a539310d65e4a97b618a4ccfb4c2c55 : RETRY_LIMIT in 3s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/6666efde70eb4cdda79d005f26a54a12 : FAILURE in 2m 18s