this derivation will be built:
  /nix/store/a6dm40js1i49x7w8apjsqkd9z4pvxj8v-interpolate-conformance.drv
building '/nix/store/a6dm40js1i49x7w8apjsqkd9z4pvxj8v-interpolate-conformance.drv'
interpolate-conformance> 9 cases: Nix interpolate == Python interpolate == expected

post-build step Upload to niks3: ok
time=2026-08-30T19:07:18.877Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-30T19:07:19.388Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-30T19:07:19.821Z level=INFO msg="Upload complete. (1.357s)"