this derivation will be built:
  /nix/store/pg48vc7hb50l11j01pig95aly491v2x6-interpolate-conformance.drv
building '/nix/store/pg48vc7hb50l11j01pig95aly491v2x6-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok