this derivation will be built:
  /nix/store/zipb2cbr6c86c01ki3hcmhga0x7b8rav-interpolate-conformance.drv
building '/nix/store/zipb2cbr6c86c01ki3hcmhga0x7b8rav-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok