Fetch information about a task. This currently includes information about where a task is (or was) running and information about any retry chain, but will expand in future. The format of the output here is subject to change (and will probably get a nice print method) but the values present in the output will be included in any future update.
rrq_task_info(task_id, controller = NULL)A single task identifier
The controller to use. If not given (or NULL)
we'll use the controller registered with
rrq_default_controller_set().
A list, format currently subject to change