Build failed. https://zuul.opendev.org/t/openstack/buildset/7b9861ea617747fa82a9ea50a1e552da - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/002c37e049fd42128e9850290a9b3e1b : SUCCESS in 2m 48s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b7bfed621ece4753b3ae096d27dbe607 : SUCCESS in 3m 55s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a219a24180654762b7b5d95846568ab8 : SUCCESS in 4m 32s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/52b731c6136244f6abdb2243e7f34e2b : FAILURE in 3m 17s