Build failed. https://zuul.opendev.org/t/openstack/buildset/ffe767b1bb0844de8fe8238dc6e0b3ec - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/4977914f86fb4d70bb038333af01a000 : FAILURE in 3m 23s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f404c21c1d4e4067a1b8fe975e588088 : SUCCESS in 3m 35s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/028d2222da1d46079ff480a5310467ae : SUCCESS in 3m 21s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f293c58c43e740cf8bd3d3d0d51a9b7f : SUCCESS in 3m 31s