this derivation will be built:
  /nix/store/3f58h4r3hn9xyywrv3ga4d31xwq5h0jf-interpolate-conformance.drv
building '/nix/store/3f58h4r3hn9xyywrv3ga4d31xwq5h0jf-interpolate-conformance.drv'
interpolate-conformance> 9 cases: Nix interpolate == Python interpolate == expected

post-build step Upload to niks3: ok
time=2026-08-26T18:56:14.787Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-26T18:56:15.172Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-26T18:56:15.613Z level=INFO msg="Upload complete. (957ms)"