Build failed. https://zuul.opendev.org/t/openstack/buildset/da630e2dbf6d405cab71591ed270e022 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/5229dcb0f4124337ba9f13267ae73ef8 : SUCCESS in 4m 16s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/a7f2131a238a4e03881595b33a87687e : SUCCESS in 4m 48s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b3df182dcf1d4b67bf1630cf7f0a463a : SUCCESS in 4m 29s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/d2e2037d8d3a4300a41173b27719720e : FAILURE in 4m 07s