16:37:21 00:01   [pyprep]
16:37:21 00:01     [interpreter]
                   pants_backend_python_tasks2_select_interpreter_SelectInterpreter will read from local artifact cache at /Users/cris.ewing/experiments/pants/.cache/pants_backend_python_tasks2_select_interpreter_SelectInterpreter
16:37:21 00:01       [cache]
                   No cached artifacts for 2 targets.
                   Invalidated 2 targets.
                   Detected interpreter /usr/bin/python: CPython-2.7.10
                   Detected interpreter /usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/bin/python2.7: CPython-2.7.13