this derivation will be built:
  /nix/store/bmzw43a1qs7yp4d1924vfj1bdg88d8b5-interpolate-conformance.drv
building '/nix/store/bmzw43a1qs7yp4d1924vfj1bdg88d8b5-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok