Check that test-venv is available in paratest.server
Check that test-venv is available in paratest.server

start_test requires test-venv in order to use argparse and subprocess32. The
activation script checks for a valid test-venv and will issue errors if
anything goes wrong. This just calls the activation scrip from paratest so that
you can get a clear and quick error if you forgot to make test-venv. Without
this your whole paratest will run and you'll get a failure per directory.

chizarlicious/chapel,CoryMcCartan/chapel,chizarlicious/chapel,chizarlicious/chapel,chizarlicious/chapel,chizarlicious/chapel,CoryMcCartan/chapel,chizarlicious/chapel,CoryMcCartan/chapel,CoryMcCartan/chapel,CoryMcCartan/chapel,chizarlicious/chapel,CoryMcCartan/chapel,CoryMcCartan/chapel