I enabled shared runners and CI now runs, but I get a failure only on pgsql. This appears consistent, i.e. the same tests failed in both py35-nocov-pg and py36-nocov-pg on two separate runs, apparently because of messages like
/builds/msapiro/mailman/.tox/py36-nocov-pg/lib/python3.6/site-packages/psycopg2/__init__.py:144: UserWarning: The psycopg2 wheel package will be renamed from release 2.8; in order to keep installing from binary please use "pip install psycopg2-binary" instead. For details see: http://initd.org/psycopg/docs/install.html#binary-install-from-pypi. + """)
I don't see this failure when I run py35-nocov-pg locally even though both my local tox and CI install psycopg2==2.7.4
I am at a loss as to how to proceed.