this derivation will be built:
  /nix/store/h4vslp7iy2bz3z8fcj83cn3gp8nyp2gz-interpolate-conformance.drv
building '/nix/store/h4vslp7iy2bz3z8fcj83cn3gp8nyp2gz-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok