this derivation will be built:
  /nix/store/49w2zf8j6lnzn8kx5xysdlizb7b70b9h-interpolate-conformance.drv
building '/nix/store/49w2zf8j6lnzn8kx5xysdlizb7b70b9h-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok