Is your feature request related to a problem? Please describe.
When a Scheduled Rollup fails to execute, it usually sends an email with information on the failure. This includes the AsyncApexJob Id but doesn't include information about the specific rollup that failed.
Describe the solution you'd like
It would be best if these emails added data for which lookup configuration it was that crashed. Lookup Id and Name/Label would be excellent.
A fix would need to be added to the RollupCalculateJobSchedulable and the RollupCalculateJob to cover different failure modes.