Hello,
> /gnu/store/qmzr030rzgikdxv3g9msqv0l8qp5j6y2-btrfs-raid-root-os.drv, > which was marked as failed earlier today due to missing .drv. It’s a > 4KiB file, and the cache-bypass-threshold is ‘guix publish’ is typically > set to something much higher than that. So ‘guix publish’ won’t return > 404 in that case. Yes but that derivation also depends on other derivations, for instance qemu-minimal and if I try: --8<---------------cut here---------------start------------->8--- mathieu@berlin ~$ guix build qemu-minimal ... /gnu/store/lwv2pl0m6dkf6bkzip755w5p71g5akq4-qemu-minimal-7.1.0 --8<---------------cut here---------------end--------------->8--- and then, from my machine. --8<---------------cut here---------------start------------->8--- curl https://ci.guix.gnu.org/lwv2pl0m6dkf6bkzip755w5p71g5akq4.narinfo We're baking it: /lwv2pl0m6dkf6bkzip755w5p71g5akq4.narinfo --8<---------------cut here---------------end--------------->8--- wget exhibits the same behaviour and returns 404. So any build that requires a heavy substitute, heavier than the cache bypass threshold at least, will fail on the workers, as it would fail locally. That's not really a surprise as baking substitutes takes time and there is a time window between the moment Cuirass triggers NAR baking and the moment the NAR is baked, where every user will get a 404. Mathieu
