this derivation will be built:
  /nix/store/6lxq77zpk3743gfr6srd4w1fp6lqfv1m-container-test-run-coredns.drv

post-build step Upload to niks3: ok
time=2026-08-20T08:12:29.932Z level=INFO msg="Uploading 0 paths to niks3.clan.lol (1 already cached)"
time=2026-08-20T08:12:30.133Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-20T08:12:31.504Z level=INFO msg="Upload complete. (1.621s)"