[tw-mbp-yic pants ((6a81a2d...))]$ ./pants goals
Scrubbed PYTHONPATH=/Users/yic/workspace/pants/src/python: from the environment.
timestamp: 2020-03-07T23:55:25.870643
Exception caught: (builtins.TypeError)
  File "/Users/yic/workspace/pants/src/python/pants/bin/pants_loader.py", line 98, in <module>
    main()
  File "/Users/yic/workspace/pants/src/python/pants/bin/pants_loader.py", line 94, in main
    PantsLoader.run()
  File "/Users/yic/workspace/pants/src/python/pants/bin/pants_loader.py", line 90, in run
    cls.load_and_execute(entrypoint)
  File "/Users/yic/workspace/pants/src/python/pants/bin/pants_loader.py", line 83, in load_and_execute
    entrypoint_main()
  File "/Users/yic/workspace/pants/src/python/pants/bin/pants_exe.py", line 32, in main
    PantsRunner(start_time=start_time).run()
  File "/Users/yic/workspace/pants/src/python/pants/bin/pants_runner.py", line 77, in run
    options_bootstrapper = OptionsBootstrapper.create(env=self._env, args=self._args)
  File "/Users/yic/workspace/pants/src/python/pants/option/options_bootstrapper.py", line 170, in create
    initial_bootstrap_options = cls.parse_bootstrap_options(env, bargs, pre_bootstrap_config)
  File "/Users/yic/workspace/pants/src/python/pants/option/options_bootstrapper.py", line 101, in parse_bootstrap_options
    env=env, config=config, known_scope_infos=[GlobalOptions.get_scope_info()], args=args,
  File "/Users/yic/workspace/pants/src/python/pants/option/options.py", line 127, in create
    complete_known_scope_infos = cls.complete_scopes(known_scope_infos)
  File "/Users/yic/workspace/pants/src/python/pants/option/options.py", line 101, in complete_scopes
    for si in copy.copy(ret):
  File "/Users/yic/workspace/pants/build-support/virtualenvs/Darwin/pants_dev_deps.py36.venv/lib/python3.6/copy.py", line 88, in copy
    return copier(x)

Exception message: __copy__() takes 1 positional argument but 2 were given