this derivation will be built:
  /nix/store/yv8zsjq8b0d6y1rxahrqv94f1zqkb0aw-interpolate-conformance.drv
building '/nix/store/yv8zsjq8b0d6y1rxahrqv94f1zqkb0aw-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok