this derivation will be built:
  /nix/store/bj43ahh1x8d78a4r53igj6462mf9cbhb-interpolate-conformance.drv
building '/nix/store/bj43ahh1x8d78a4r53igj6462mf9cbhb-interpolate-conformance.drv'
interpolate-conformance> 9 cases: Nix interpolate == Python interpolate == expected

post-build step Upload to niks3: ok
time=2026-08-31T18:54:04.366Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-31T18:54:04.958Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-31T18:54:05.340Z level=INFO msg="Upload complete. (1.358s)"