this derivation will be built:
  /nix/store/9lrvvq11wmx62z7mf5fav5qv0rzbj1qq-interpolate-conformance.drv
building '/nix/store/9lrvvq11wmx62z7mf5fav5qv0rzbj1qq-interpolate-conformance.drv'
interpolate-conformance> 9 cases: Nix interpolate == Python interpolate == expected

post-build step Upload to niks3: ok
time=2026-08-25T18:14:41.683Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-25T18:14:42.253Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-25T18:14:42.680Z level=INFO msg="Upload complete. (1.131s)"