this derivation will be built:
  /nix/store/579pzxzih5p22mvjm3mn5h96vpqa8qdl-interpolate-conformance.drv
building '/nix/store/579pzxzih5p22mvjm3mn5h96vpqa8qdl-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok