this derivation will be built:
  /nix/store/gdlp6cj9r0g5rmn8w424a5m147nf52xb-interpolate-conformance.drv
building '/nix/store/gdlp6cj9r0g5rmn8w424a5m147nf52xb-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok