Getting a crash report from production with this message: "specialized thunk for @callee_guaranteed"
Crashed: UserScheduleServiceQueue 0 libswiftFoundation.dylib 0x104b673f8 (Missing) 1 MY_APP01 0x102feec54 specialized thunk for @callee_guaranteed (@owned ScheduleItem, @owned ScheduleItem) -> (@unowned Bool, @error @owned Error) (UserScheduleService.swift:34) 2 MY_APP01 0x102ff0e38 specialized _introSortImpl<A>(_:subRange:by:depthLimit:) (UserScheduleService.swift) 3 MY_APP01 0x102ff142c specialized MutableCollection.sorted(by:) (UserScheduleService.swift) 4 MY_APP01 0x102ff1c08 partial apply for closure #1 in closure #1 in UserScheduleService.loadPastAndUpcomingVisits(completion:) (UserScheduleService.swift:34) 5 MY_APP01 0x102feee2c closure #1 in UserScheduleService.loadVisits(direction:completion:) (UserScheduleService.swift:72)
The error seems to happen when sorting a collection (array) of classes by a
Date property. The ScheduleItem class is defined in Obj-c.
I'm interested in the actual error message, since I've looked everywhere and cannot find any references online.