Build failed. https://zuul.opendev.org/t/openstack/buildset/9c254f86f563431386df778d4219312d - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/84c79b0e1fcb46dabc53aff651d30d63 : SUCCESS in 3m 09s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/e3e65ee102634904a048579dd1af11c8 : SUCCESS in 2m 42s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ba27909d7eb445e4a93f3acc1aa5d025 : SUCCESS in 2m 48s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/cb908c025bb54e5299a64c61e821f997 : FAILURE in 2m 19s