this derivation will be built:
  /nix/store/3hc899d5qx8m0sax4j2wnpgwva4snzvg-interpolate-conformance.drv
building '/nix/store/3hc899d5qx8m0sax4j2wnpgwva4snzvg-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok