this derivation will be built:
  /nix/store/sdcimq9z38qdwah6g5fwkxy9v5fi8vp6-interpolate-conformance.drv
building '/nix/store/sdcimq9z38qdwah6g5fwkxy9v5fi8vp6-interpolate-conformance.drv'
interpolate-conformance> 9 cases: Nix interpolate == Python interpolate == expected

post-build step Upload to niks3: ok
time=2026-08-28T21:45:01.299Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-28T21:45:02.122Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-28T21:45:02.585Z level=INFO msg="Upload complete. (1.711s)"