this derivation will be built:
  /nix/store/nqjg0vbl1gqjz4z1fb9rjf69s3c0b6w3-interpolate-conformance.drv
building '/nix/store/nqjg0vbl1gqjz4z1fb9rjf69s3c0b6w3-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok