this derivation will be built:
  /nix/store/3lfgrv5s9k09k04vk3gzfzb2ishf4ws8-interpolate-conformance.drv
building '/nix/store/3lfgrv5s9k09k04vk3gzfzb2ishf4ws8-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok