Your package libmusicbrainz5 failed to build from source in current rawhide. http://koji.fedoraproject.org/koji/taskinfo?taskID=6943639 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild
Created attachment 903711 [details] build.log
Created attachment 903712 [details] root.log
Created attachment 903713 [details] state.log
Filed a bug upstream with a patch: http://tickets.musicbrainz.org/browse/LMB-41