Hi! I stumbled upon the case of a build that was successful on ci.guix but that does not have a corresponding substitute:
https://ci.guix.gnu.org/build/806609/details and: --8<---------------cut here---------------start------------->8--- $ wget -O- https://ci.guix.gnu.org/slm0x0j05vyl3vqbjhgc0nch6jca9fp3.narinfo --2021-07-30 10:53:15-- https://ci.guix.gnu.org/slm0x0j05vyl3vqbjhgc0nch6jca9fp3.narinfo Ni solvigas ci.guix.gnu.org (ci.guix.gnu.org)... 141.80.181.40 Konektado al ci.guix.gnu.org (ci.guix.gnu.org)|141.80.181.40|:443... konektita. HTTP peto sendita, ni atendas respondon... 404 Not Found 2021-07-30 10:53:15 ERARO 404: Not Found. --8<---------------cut here---------------end--------------->8--- The store item vanished from berlin, though the .drv is still there: --8<---------------cut here---------------start------------->8--- ludo@berlin ~$ ls /gnu/store/slm0x0j05vyl3vqbjhgc0nch6jca9fp3-xnnpack-0.0-1.bbe8824 ls: cannot access '/gnu/store/slm0x0j05vyl3vqbjhgc0nch6jca9fp3-xnnpack-0.0-1.bbe8824': No such file or directory ludo@berlin ~$ guix gc --derivers /gnu/store/slm0x0j05vyl3vqbjhgc0nch6jca9fp3-xnnpack-0.0-1.bbe8824 /gnu/store/hrn9hj7v1img3il6afh3r036aczvwnyd-xnnpack-0.0-1.bbe8824.drv ludo@berlin ~$ ls $(guix gc --derivers /gnu/store/slm0x0j05vyl3vqbjhgc0nch6jca9fp3-xnnpack-0.0-1.bbe8824) /gnu/store/hrn9hj7v1img3il6afh3r036aczvwnyd-xnnpack-0.0-1.bbe8824.drv --8<---------------cut here---------------end--------------->8--- It’s the first time I see this. My understanding is that Cuirass makes a GET request on ‘guix publish’ upon build completion. Could there be a race condition or something that can explain this? Thanks, Ludo’.
