Build failed. https://zuul.opendev.org/t/openstack/buildset/1a2af5c26d1a4c6ba96b1e024c919caf - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/bae93c5b10ae4f49a922ff8bb8f0f542 : SUCCESS in 4m 29s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f15ea44934a04d63b1987d5dd6596d75 : SUCCESS in 4m 34s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/187bb8758eea473d9661bda3a845c2a1 : SUCCESS in 5m 06s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/775d0a0dde2e4df4bbc784463f717f69 : FAILURE in 4m 35s