Build failed. https://zuul.opendev.org/t/openstack/buildset/2595bf90864046df9c981753f3e74f2e - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f5702911aa6e48389a74fb0476c0a1b2 : SUCCESS in 3m 32s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/bd57ab742c9a4e999860ed474efd1062 : RETRY_LIMIT in 1m 49s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/8174900eed7f446f8c36bdf653d7c2f3 : SUCCESS in 2m 35s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e209745de2f043d39d20509f18ab51af : SUCCESS in 2m 38s