this derivation will be built:
  /nix/store/dgy8d6wz3da8bsd6lpl7z1wfwf2sg2pd-interpolate-conformance.drv
building '/nix/store/dgy8d6wz3da8bsd6lpl7z1wfwf2sg2pd-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok