Your package mutt failed to build from source in current rawhide. http://koji.fedoraproject.org/koji/taskinfo?taskID=4968977 Build logs: root.log: http://kojipkgs.fedoraproject.org/work/tasks/8977/4968977/root.log build.log: http://kojipkgs.fedoraproject.org/work/tasks/8977/4968977/build.log state.log: http://kojipkgs.fedoraproject.org/work/tasks/8977/4968977/state.log NOTE: build logs are cleaned up after 1 week For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_19_Mass_Rebuild
It looks like debian has worked through this and submitted a patch upstream, though there hasn't been a new upstream release since then. The debian bug is: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=624085
Thanks for pointing me to that, fixed in Rawhide.