this derivation will be built:
  /nix/store/ldjb9nrda22l9fs3mjsj0lr377a2y0gx-interpolate-conformance.drv
building '/nix/store/ldjb9nrda22l9fs3mjsj0lr377a2y0gx-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok