Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/61783b6b94694ae88493b276d144a2fa : SUCCESS in 4m 10s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/e3bdf55f49ee44b58f6ccab7db5340f8 : FAILURE in 4m 06s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/65e6700a9bd8476dba1fa05ef4f179ef : SUCCESS in 4m 57s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/9d3f528ac1f5465aa866da07c6128cdc : SUCCESS in 5m 28s