this derivation will be built:
  /nix/store/rlnjgi5q51s16wbz8lrkzxjli8b6xgc9-interpolate-conformance.drv
building '/nix/store/rlnjgi5q51s16wbz8lrkzxjli8b6xgc9-interpolate-conformance.drv'
interpolate-conformance> 9 cases: Nix interpolate == Python interpolate == expected

post-build step Upload to niks3: ok
time=2026-08-30T21:23:20.739Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-30T21:23:21.210Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-30T21:23:21.603Z level=INFO msg="Upload complete. (2.941s)"