this derivation will be built:
  /nix/store/kqpz6c1jxksj6hbp3c6pwv1qf0mak7b3-interpolate-conformance.drv
building '/nix/store/kqpz6c1jxksj6hbp3c6pwv1qf0mak7b3-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok