this derivation will be built:
  /nix/store/18sr293imh4h6wd7yvc65ir4z37246ph-interpolate-conformance.drv
building '/nix/store/18sr293imh4h6wd7yvc65ir4z37246ph-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok