Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/2ed0a55bea1d455e8abb8bf5e8641fb3 : SUCCESS in 4m 59s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b080b340f5364c6d9cdac6fcdaed6212 : SUCCESS in 6m 51s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a64ab498d7f2464a97a3d5106a1980c5 : SUCCESS in 6m 49s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/8f47b53c820646d0a7591b037406e83c : FAILURE in 3m 58s