Even if an error happens, the output file might still exist, because saveRDS() creates the file before evaluating its object argument. So we need to check for the error file to decide if an error happened.

get_result(output, options)

## Arguments

options The context, including all parameters. List of the output object from run() and the name of the result file to read. For the error file, .error is appended to this.

## Value

If no error happened, the result is returned. Otherwise we handle the error.