Xcode Server 7 GM Fails to Produce .ipa File

I just upgraded our Xcode Server Xcode from beta 6 to the GM and now our .ipa files are no longer being produced.


The code compiles fine and the archive is created, but when exporting to an ipa file, we are seeing the following error:


error: exportArchive: failed to extract armv7 slice from Mach-O file /var/folders/29/r77ws9r50g9dkd85p779dddw000086/T/ipatool20150911-24179-c8agt0/MachOs/iphoneos/universal/libswiftCore.dylib


We can manually export using the GM to get .ipa files, but the server fails to do so. I have tried deleting DerivedData and Source, restarting the service, and even creating entirely new Bots, but nothing has worked.


Has anyone else seen this or have any recommendations?


Thanks!