this derivation will be built:
  /nix/store/bz9s0284rzwx0c9slqgx4zb9bw93g0pd-interpolate-conformance.drv
building '/nix/store/bz9s0284rzwx0c9slqgx4zb9bw93g0pd-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok