this derivation will be built:
  /nix/store/a4xkhlvq2aiaf0y7x7qwcva5v2sd9alq-interpolate-conformance.drv
building '/nix/store/a4xkhlvq2aiaf0y7x7qwcva5v2sd9alq-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok