this derivation will be built:
  /nix/store/2ksm2cp9n7gv58d07fkd1jv1h82c6fll-interpolate-conformance.drv
building '/nix/store/2ksm2cp9n7gv58d07fkd1jv1h82c6fll-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok