Cuirass jobs become cancelled due to garbage collected .drv's

Hello,

Most jobs from the 'staging' evaluation in Cuirass are cancelled:

https://ci.guix.gnu.org/jobset/staging-staging

(scroll a few pages rightwards)

Christopher mentioned on #guix that this can happen when the derivations

have disappeared by the time Cuirass tries running a job.

Indeed, the jobs listed as cancelled have associated derivations that

are missing on Berlin, likely from the nightly GC.

Probably Cuirass should store GC roots for each .drv file. Thoughts?

Is there a trick to make Cuirass forget about these derivations, and try

recreating the jobs?

merge 48574 44121

quit