../ error_observer_cannot_depend_directly_on_fallib..> 26-Jun-2024 03:57 - error_observer_cannot_depend_transitively_on_fa..> 26-Jun-2024 03:57 - error_observer_with_generic_error/ 26-Jun-2024 03:57 - error_observers_can_depend_on_fallible_singletons/ 26-Jun-2024 03:57 - error_observers_happy_path/ 26-Jun-2024 03:57 -