Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/21550aff6eb04fc28928821f7df63523 : SUCCESS in 3m 30s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7fff60d0648049628116e75395c5d297 : SUCCESS in 6m 08s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/c452caa0fb974cd2a60cfaaea3782dc9 : SUCCESS in 6m 06s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e32f67930b534b09be6f822a3269c607 : FAILURE in 2m 43s