Build failed. https://zuul.opendev.org/t/openstack/buildset/c7d1909fff794b3bae7807b0867f7fc8 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/724c77d1ce0d41c597245c4c833e9ed4 : SUCCESS in 4m 20s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/8827aa37efa6450c87c05dba85052df4 : SUCCESS in 5m 05s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/2fa8ddcf3d664f49a25ea317bb0ec112 : FAILURE in 3m 58s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/9a4646791d0847fd87e63c6b6dd3a043 : FAILURE in 4m 03s