this derivation will be built:
  /nix/store/a8xf9a7yr91jlin555a7a9hna82pvhx3-interpolate-conformance.drv
building '/nix/store/a8xf9a7yr91jlin555a7a9hna82pvhx3-interpolate-conformance.drv'
interpolate-conformance> 9 cases: Nix interpolate == Python interpolate == expected

post-build step Upload to niks3: ok
time=2026-08-31T19:20:59.530Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-31T19:20:59.936Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-31T19:21:00.274Z level=INFO msg="Upload complete. (1.15s)"