Your package erlang-lager failed to build from source in current rawhide. http://koji.fedoraproject.org/koji/taskinfo?taskID=6960075 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild
Created attachment 904237 [details] build.log
Created attachment 904238 [details] root.log
Created attachment 904239 [details] state.log
Peter any update for getting this fixed, or rebasing to the newer version indicated in BZ 960392?
Fixed in Rawhide. Sorry for the delay.
erlang-lager-1.2.2-5.fc21 has been submitted as an update for Fedora 21. https://admin.fedoraproject.org/updates/erlang-lager-1.2.2-5.fc21
erlang-lager-1.2.2-5.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report.