this derivation will be built:
  /nix/store/0svsn8k0a0z7b7fv5z3b2x4mda9zmrrp-interpolate-conformance.drv
building '/nix/store/0svsn8k0a0z7b7fv5z3b2x4mda9zmrrp-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok