Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/792a9dc7e9eb401a9a07b13d43832dda : SUCCESS in 4m 24s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/a88d9471f5574965b68b8e9c7e2a0eb0 : FAILURE in 3m 29s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/116d15ccaa9946f69aaf2944baaad900 : SUCCESS in 4m 19s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/d652d84fc7fb4246bccac86345db66d1 : SUCCESS in 4m 59s