[omerta pants (master)]$ ./pants --pants-config-files="+['pants.travis-ci.ini']" options |grep 'cache.*test' |grep CONFIG
WARN] /Users/kwilson/dev/pants/src/python/pants/core_tasks/explain_options_task.py:110: DeprecationWarning: DEPRECATED: scope compile.gofmt will be removed in version 1.5.0.dev0.
  Use scope lint.go instead (options: pythonpath, pants_config_files, pants_distdir, pants_bootstrapdir, print_exception_stacktrace, pants_workdir, pants_configdir, pants_supportdir, pants_ignore, backend_packages)
  self.context.options.for_scope(scope)

cache.test.pytest.read_from = ['/Users/kwilson/.cache/pants/artifact_cache'] (from CONFIG in pants.travis-ci.ini)
cache.test.pytest.write_to = ['/Users/kwilson/.cache/pants/artifact_cache'] (from CONFIG in pants.travis-ci.ini)