this derivation will be built:
  /nix/store/2zy135ihk50p71w8y1qvhl792gxd2byq-interpolate-conformance.drv
building '/nix/store/2zy135ihk50p71w8y1qvhl792gxd2byq-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok