this derivation will be built:
  /nix/store/s7n6ivmg2csdgq3npln8rndm8l2d38b9-interpolate-conformance.drv
building '/nix/store/s7n6ivmg2csdgq3npln8rndm8l2d38b9-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok