this derivation will be built:
  /nix/store/yqz1j7c92bs76k2qav2m1gimlak1agj2-interpolate-conformance.drv
building '/nix/store/yqz1j7c92bs76k2qav2m1gimlak1agj2-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok