api.run has empty reports when crashing early

I'm seeing a case where CLI would ouput useful messages but api.run is not. This causes https://github.com/PyCQA/prospector to think that the mypy run was successful when it wasn't (granted, prospector should look at exit_status).

mypy.ini

[mypy]
plugins = mypy_django_plugin.main
warn_return_any = True
warn_unused_configs = True
disallow_subclassing_any = True
disallow_any_generics = True
disallow_untyped_calls = True
disallow_untyped_defs = True
disallow_incomplete_defs = True
check_untyped_defs = True
disallow_untyped_decorators = True
no_implicit_optional = True
warn_redundant_casts = True
warn_unused_ignores = True
mypy_path = stubs

[mypy.plugins.django-stubs]
django_settings_module = "imake.settings"

Output of CLI

env PYTHONPATH=(pwd) mypy core/shortcuts.py
oscar_forks/catalogue/models.py:6: error: Module 'oscar.apps.catalogue.abstract_models' has no attribute 'AbstractCategory'
oscar_forks/catalogue/models.py:21: error: Class cannot subclass 'AbstractCategory' (has type 'Any')
stubs/oscar/apps/catalogue/abstract_models.pyi:3: error: INTERNAL ERROR -- Please try using mypy master on Github:
https://mypy.rtfd.io/en/latest/common_issues.html#using-a-development-mypy-build
If this issue continues with mypy master, please report a bug at https://github.com/python/mypy/issues
version: 0.720
stubs/oscar/apps/catalogue/abstract_models.pyi:3: : note: please use --show-traceback to print a traceback when reporting a bug

Return value of api.run

('', '', 2)

api.run エントリポイントから開始し、提供された mypy.ini 設定と mypy コマンドを使用して、その動作を CLI と比較します。初期クラッシュを再現し、その後、終了ステータスを維持しながら、api.run が CLI と同じ診断出力を公開することを確認します。