this derivation will be built:
  /nix/store/29dz76109n2999gp6xahfv71b8qvh4yh-interpolate-conformance.drv
building '/nix/store/29dz76109n2999gp6xahfv71b8qvh4yh-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok