On Mon, Oct 15, 2018 at 11:20:42AM +0200, Ludovic Courtès wrote: > Could you run: > > guix build --log-file \ > /gnu/store/iql35g1g5q9dkap5splc7f9ggskr31vl-NamesList.txt > > and post the contents of the file? This log was actually found on Hydra for me (that private mirror is of Hydra): $ guix build --log-file /gnu/store/iql35g1g5q9dkap5splc7f9ggskr31vl-NamesList.txt https://mirror.hydra.gnu.org/log/iql35g1g5q9dkap5splc7f9ggskr31vl-NamesList.txt I've attached it instead of pasting it in case my our mail clients mangle the contents.