this derivation will be built:
  /nix/store/a9dri5cnx6s9dk4kijd81g51hyl96wr6-interpolate-conformance.drv
building '/nix/store/a9dri5cnx6s9dk4kijd81g51hyl96wr6-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok