this derivation will be built:
  /nix/store/g0sp8ic7dj8j3lgidmvbzmr2p4nigx17-interpolate-conformance.drv
building '/nix/store/g0sp8ic7dj8j3lgidmvbzmr2p4nigx17-interpolate-conformance.drv'
interpolate-conformance> 9 cases: Nix interpolate == Python interpolate == expected

post-build step Upload to niks3: ok
time=2026-09-01T09:21:39.914Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-09-01T09:21:40.325Z level=INFO msg="Uploading 1 narinfos"
time=2026-09-01T09:21:40.696Z level=INFO msg="Upload complete. (884ms)"