Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/fc434461747f45d3bfee8bb4505b788e : SUCCESS in 6m 58s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/ef12a78b60314aeea46870cfb2ef2208 : SUCCESS in 7m 31s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f985e9f783eb49f9b5aa9d02c6aa24be : FAILURE in 7m 18s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f369fa9ac2fd44e584bfd88d1226fe31 : FAILURE in 7m 27s