Your package lingot failed to build from source in current rawhide. http://koji.fedoraproject.org/koji/taskinfo?taskID=6948679 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild
Created attachment 903876 [details] build.log
Created attachment 903878 [details] root.log
Created attachment 903880 [details] state.log
Cause is -Werror=format-security in bug 1037177.
as the upstream release with the fix is somehow delayed, I wanted to backport it for the F21 branch unfortunately, bug #1109956 blocks me from working with F21 branch, and trying to use git directly, I must be doing something wrong as my HEAD is always getting detached ... any help appreciated
git checkout f21 that will allow you to switch branches. if your HEAD is getting detached you must have something in your git config that is causing it.