HTTP connection warnings when using local_forest_runtime

Some simple code keeps printing warnings that appear to be unrelated to anything I'm doing:

WARNING - Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7f4dea0aeb00>: Failed to establish a new connection: [Errno 111] Connection refused',)': /

This happens with some code that just solves some of the exercises in the docs:

def throw_octahedral_die():
    qvm = get_qc("3q-qvm")
    program = Program(H(0), H(1), H(2))
    ro = program.declare("ro", "BIT", 3)
    program += MEASURE(0, ro[0])
    program += MEASURE(1, ro[1])
    program += MEASURE(2, ro[2])
    result = qvm.run(program)
    a, b, c = result[0]
    return 1 + 4 * a + 2 * b + c


def main():
    print(throw_octahedral_die())


if __name__ == "__main__":
    with local_forest_runtime():
        main()

AFAICT these warnings are nonactionable and do not indicate any problem, so they should be suppressed.

Start by reproducing the documented exercise using local_forest_runtime, get_qc("3q-qvm"), and qvm.run to locate the source of the connection warnings. Done means the non-actionable warnings are suppressed while the example still runs and returns its measurement result.