Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ff44a87f7933431cb062352b0000bce3 : SUCCESS in 5m 33s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/8312ba01a6ce4db8b3a00c1d50b4307c : SUCCESS in 7m 29s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/98f98cc3c3fb447088d3c7be3589656b : FAILURE in 4m 34s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/9eca47b3b675433f87bdee1a3f8cffbe : FAILURE in 7m 05s