Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/8f39ccd1036a48f3a85bed2d07092971 : SUCCESS in 6m 05s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/711aef6120f143128121666404c0c3bb : SUCCESS in 4m 57s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/2e328bcda11442a8b826d1526b6b1135 : FAILURE in 3m 39s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/79d2a71cad3749668b85cc8436aa5eed : FAILURE in 3m 29s