this derivation will be built:
  /nix/store/a223bcs27v462pjff42751qsmwrfhvb0-docs-reference-current-test.drv
building '/nix/store/a223bcs27v462pjff42751qsmwrfhvb0-docs-reference-current-test.drv'
docs-reference-current-test> docs/reference matches the option tree

post-build step Upload to niks3: ok
time=2026-09-01T11:15:29.760Z level=INFO msg="Uploading 0 paths to 127.0.0.1 (1 already cached)"
time=2026-09-01T11:15:30.217Z level=INFO msg="Uploading 1 narinfos"
time=2026-09-01T11:15:30.404Z level=INFO msg="Upload complete. (670ms)"