this derivation will be built:
  /nix/store/1kzn135q728ci73iw7qm3zn9zmkzr3af-interpolate-conformance.drv
building '/nix/store/1kzn135q728ci73iw7qm3zn9zmkzr3af-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok