Wrap pipeline merge_variant_data task logic in try-except that sets AlignmentGroup status to FAILED if an exception is thrown.
Wrap pipeline merge_variant_data task logic in try-except that sets
AlignmentGroup status to FAILED if an exception is thrown.

churchlab/millstone,churchlab/millstone,churchlab/millstone,woodymit/millstone,woodymit/millstone,churchlab/millstone,woodymit/millstone,woodymit/millstone