this derivation will be built:
  /nix/store/36jwzvhqgzrq3vh1zlpm3h72zca4l0w1-interpolate-conformance.drv
building '/nix/store/36jwzvhqgzrq3vh1zlpm3h72zca4l0w1-interpolate-conformance.drv'
interpolate-conformance> 9 cases: Nix interpolate == Python interpolate == expected

post-build step Upload to niks3: ok
time=2026-08-31T21:27:29.057Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-31T21:27:29.415Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-31T21:27:29.763Z level=INFO msg="Upload complete. (780ms)"