Hi, As documented by the manual [1], I have:
--8<---------------cut here---------------start------------->8--- (use-modules (guix ci)) (list (channel-with-substitutes-available %default-guix-channel "https://ci.guix.gnu.org" --8<---------------cut here---------------end--------------->8--- Running “guix pull”, it picks e499cb2c12d7f1c6d2f004364c9cc7bdb7e38cd5 which is broken [2]. To be precise, this commit contains a cycle: emacs-keycast lists emacs-keycast as propagated inputs; introduced by the previous commit 87d5754107e2393cc5d2ab44cd9586b3bf73b011 [3]. This cycle leads to an exploding guix-package-cache.drv. It consumes all the RAM. What happens is that ’channel-with-substitutes-available’ checks the latest success of the “guix” jobset [4]. And that passes [5], at least for x86_64. It passes because the Cuirass jobset does not build guix-package-cache.drv. Otherwise it would probably fail; as it happens on Bordeaux [2]. Well, I do not find where this jobset “guix” is defined but it appears to me worth to add this guix-package-cache.drv derivation. 1: https://guix.gnu.org/manual/devel/en/guix.html#Channels-with-Substitutes 2: https://data.guix.gnu.org/revision/e499cb2c12d7f1c6d2f004364c9cc7bdb7e38cd5 3: https://git.savannah.gnu.org/cgit/guix.git/commit/?id=87d5754107e2393cc5d2ab44cd9586b3bf73b011 4: https://ci.guix.gnu.org/jobset/guix 5: https://ci.guix.gnu.org/eval/479592 Cheers, simon PS: If one has enough RAM, one could read: --8<---------------cut here---------------start------------->8--- GC Warning: Repeated allocation of very large block (appr. size 1073741824): May lead to memory leak and poor performance -8<---------------cut here---------------end--------------->8--- And note that if one has more RAM, then this guix-package-cache.drv can even be built. Maybe a bug on Guile side, another story.