this derivation will be built:
  /nix/store/s4c4ckxv1v5m31p8mpbry3km5q509bhf-spaces-integrations-policy-lowering-test.drv
building '/nix/store/s4c4ckxv1v5m31p8mpbry3km5q509bhf-spaces-integrations-policy-lowering-test.drv'

post-build step Upload to niks3: ok
time=2026-09-15T04:33:27.911Z level=INFO msg="Uploading 0 paths to 127.0.0.1 (1 already cached)"
time=2026-09-15T04:33:28.718Z level=INFO msg="Uploading 1 narinfos"
time=2026-09-15T04:33:28.804Z level=INFO msg="Upload complete. (916ms)"