Build failed. https://zuul.opendev.org/t/openstack/buildset/4058bfc3ead04239aadee7b31e0e1d47 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/5e1a7f429b034deaa614c7abe4cac3c9 : SUCCESS in 5m 07s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/c467ed733f7a48739e497ac6961714b3 : FAILURE in 3m 35s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a1730e9d35a14acda5208705e4acfdb9 : SUCCESS in 4m 13s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/2ceae3459e104daf979fbb5e8245793b : SUCCESS in 5m 06s