this derivation will be built:
  /nix/store/n8yh5csrf8hqh7yr2v0j6nq1x1i3fiq9-interpolate-conformance.drv
building '/nix/store/n8yh5csrf8hqh7yr2v0j6nq1x1i3fiq9-interpolate-conformance.drv'
interpolate-conformance> 9 cases: Nix interpolate == Python interpolate == expected

post-build step Upload to niks3: ok
time=2026-08-25T11:09:11.002Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-25T11:09:11.548Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-25T11:09:12.012Z level=INFO msg="Upload complete. (1.074s)"