this derivation will be built:
  /nix/store/kh3mq3yf2jk1bvwbfk05lgl9wksn2gl8-interpolate-conformance.drv
building '/nix/store/kh3mq3yf2jk1bvwbfk05lgl9wksn2gl8-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok