Build failed. https://zuul.opendev.org/t/openstack/buildset/c7551bd1bddd4bc2b74f3b25f96f74ec - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/1b9d683cb05d41b18c1f0859c5f90d73 : SUCCESS in 3m 15s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/0a163b1f0f6f4342b7662e087bd3a579 : SUCCESS in 3m 52s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/bea3e0cdff1845a18e7650f29788c9ec : FAILURE in 3m 03s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/bd843bc01da147689e80ec4557096aa4 : FAILURE in 2m 58s