this derivation will be built:
  /nix/store/iw60dg8lkgx1csvxmqn5s2g238k4hdll-interpolate-conformance.drv
building '/nix/store/iw60dg8lkgx1csvxmqn5s2g238k4hdll-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok