Build failed. https://zuul.opendev.org/t/openstack/buildset/f603cae8cdd349de804f898f6524fd1e - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/85ad887d95084c6e8a9951864afc5555 : SUCCESS in 3m 11s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ce0be8fa59474878bf480dc56c61afb9 : SUCCESS in 5m 39s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/9282bf7c91844ab6867778a77ec5b8c7 : FAILURE in 2m 56s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/97b2083dbeec4a4ebbea25c15a5fc311 : FAILURE in 2m 45s