this derivation will be built:
  /nix/store/9v04mmpax9wy5pq0d7yh5y1zyf25j5gc-interpolate-conformance.drv
building '/nix/store/9v04mmpax9wy5pq0d7yh5y1zyf25j5gc-interpolate-conformance.drv'
interpolate-conformance> 9 cases: Nix interpolate == Python interpolate == expected

post-build step Upload to niks3: ok
time=2026-08-26T22:15:50.973Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-26T22:15:51.333Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-26T22:15:51.691Z level=INFO msg="Upload complete. (1.001s)"