this derivation will be built:
  /nix/store/8cxs7c8qm9kwys54vf2ja0v6kmnrlqxk-interpolate-conformance.drv
building '/nix/store/8cxs7c8qm9kwys54vf2ja0v6kmnrlqxk-interpolate-conformance.drv'
interpolate-conformance> 9 cases: Nix interpolate == Python interpolate == expected

post-build step Upload to niks3: ok
time=2026-08-31T18:47:58.936Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-31T18:47:59.423Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-31T18:47:59.919Z level=INFO msg="Upload complete. (1.707s)"