Your package R-crayon failed to build from source in current rawhide. https://koji.fedoraproject.org/koji/taskinfo?taskID=17700945 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild
Created attachment 1251217 [details] build.log
Created attachment 1251218 [details] root.log
Created attachment 1251219 [details] state.log
zbyszek's R-crayon-1.3.1-4.fc26 completed http://koji.fedoraproject.org/koji/buildinfo?buildID=840189