this derivation will be built:
  /nix/store/2r0w4lm6dra1bh1d7gqy7j9y9m8pqkvc-interpolate-conformance.drv
building '/nix/store/2r0w4lm6dra1bh1d7gqy7j9y9m8pqkvc-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok