this derivation will be built:
  /nix/store/58mvz9ags5m56l5a3xd6y7aj03d1d8dh-interpolate-conformance.drv
building '/nix/store/58mvz9ags5m56l5a3xd6y7aj03d1d8dh-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok