Your bug report #26949: (guix build union) fails when stumbling upon a dangling symlink which was filed against the guix package, has been closed. The explanation is attached below, along with your original report. If you require more details, please reply to 26949@debbugs.gnu.org. -- 26949: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=26949 GNU Bug Tracking System Contact help-debbugs@gnu.org with problems