Build failed. https://zuul.opendev.org/t/openstack/buildset/620a772c4e7f476dbd3e0413ffacc558 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/80e1499cdc8a40fdb916e9ba0e30fb2f : SUCCESS in 3m 35s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/aa0286bbe54c4429ba0fa0fd1e9698ea : FAILURE in 2m 54s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/c03545f8d401458c92cedc56974717f9 : SUCCESS in 3m 22s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/61fe5f16902f4af38af93e75499ed81b : SUCCESS in 3m 43s