Your package tclabc failed to build from source in current rawhide. http://koji.fedoraproject.org/koji/taskinfo?taskID=7009552 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild
Created attachment 906914 [details] build.log
Created attachment 906915 [details] root.log
Created attachment 906916 [details] state.log
Created attachment 912198 [details] Patch for rawhide Cause was obsoletion of direct access to Tcl_Interp->result in tcl-8.6.
Taking.
http://koji.fedoraproject.org/koji/buildinfo?buildID=540667