this derivation will be built:
  /nix/store/kjrc1fyqyw693k9aklzi57s90gs10ws1-interpolate-conformance.drv
building '/nix/store/kjrc1fyqyw693k9aklzi57s90gs10ws1-interpolate-conformance.drv'
interpolate-conformance> 9 cases: Nix interpolate == Python interpolate == expected

post-build step Upload to niks3: ok
time=2026-08-29T00:42:11.470Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-29T00:42:11.885Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-29T00:42:12.206Z level=INFO msg="Upload complete. (809ms)"