Keep getting thousands of these logs in our CI system since upgrading to Xcode 7. Don't have the slightest clue what they could mean.
2015-09-16 13:44:36.286 Interface Builder Cocoa Touch Tool[5197:11683] CoreUI: CUICatalog: couldn't get 'kMGArtworkGraphicsFeatureSetClass' from MGCopyAnswer got '{ArtworkDeviceIdiom = pad;ArtworkDeviceScaleFactor = "-1";DevicePerformanceMemoryClass = 1;}'2015-09-16 13:44:36.287 Interface Builder Cocoa Touch Tool[5197:11683] CoreUI: CUICatalog: couldn't get 'kMGArtworkGraphicsFeatureSetFallbacks' from MGCopyAnswer got '{ArtworkDeviceIdiom = pad;ArtworkDeviceScaleFactor = "-1";DevicePerformanceMemoryClass = 1;}'2015-09-16 13:44:36.288 Interface Builder Cocoa Touch Tool[5197:11683] CoreUI: CUICatalog: couldn't get 'kMGArtworkGraphicsFeatureSetClass' from MGCopyAnswer got '{ArtworkDeviceIdiom = pad;ArtworkDeviceScaleFactor = "-1";DevicePerformanceMemoryClass = 1;}'x 1000