this part already exists in master, but: running

./pants --no-v1 --v2 --loop --enable-pantsd list ::

in pantsbuild pants, and then touching `src/python/pants/init/engine_initializer.py`:

I1207 10:15:21.370506 93875 engine_initializer.py:210] running @console_rule('list')
I1207 10:15:22.700844 93875 engine_initializer.py:212] completed @console_rule('list')
I1207 10:15:26.532598 93875 scheduler_service.py:88] enqueuing 1 changes for subscription all_files
W1207 10:15:26.546345 93875 native.py:411] invalidation: cleared 1 and dirtied 6 nodes for: {"src/python/pants/init", "src/python/pants/init/engine_initializer.py"}
I1207 10:15:26.560921 93875 engine_initializer.py:210] running @console_rule('list')
I1207 10:15:26.615602 93875 engine_initializer.py:212] completed @console_rule('list')