this derivation will be built:
  /nix/store/19axl03nsfvrjkx81npij7z7ywqcai37-interpolate-conformance.drv
building '/nix/store/19axl03nsfvrjkx81npij7z7ywqcai37-interpolate-conformance.drv'
interpolate-conformance> 9 cases: Nix interpolate == Python interpolate == expected

post-build step Upload to niks3: ok
time=2026-08-31T10:06:38.105Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-31T10:06:38.590Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-31T10:06:39.033Z level=INFO msg="Upload complete. (3.137s)"