Build failed. https://zuul.opendev.org/t/openstack/buildset/4eacbc52a9bd4cacbd6405d927eaba21 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a04408377e0440288082b0649219ef68 : FAILURE in 4m 48s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/e63aeb5e5d6649e2a5899a2bdd6eb9c6 : SUCCESS in 4m 18s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b360a20a2cc14a0bb4e829e5f68cbf51 : SUCCESS in 4m 06s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f5e37737a2b84990a286edb691b06fb2 : SUCCESS in 5m 25s