Your package hamcrest failed to build from source in current rawhide. http://koji.fedoraproject.org/koji/taskinfo?taskID=6982267 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild
Created attachment 905200 [details] build.log
Created attachment 905201 [details] root.log
Created attachment 905202 [details] state.log
Should be fixed in F21 and F22/rawhide: https://koji.fedoraproject.org/koji/buildinfo?buildID=549142 https://koji.fedoraproject.org/koji/buildinfo?buildID=549143