this derivation will be built:
  /nix/store/5pc9y2ghg8c124y49kv5253vncba7j68-interpolate-conformance.drv
building '/nix/store/5pc9y2ghg8c124y49kv5253vncba7j68-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok