this derivation will be built:
  /nix/store/x2z798f7n0lnv2vld0bfp9s4m5lqm1y9-interpolate-conformance.drv
building '/nix/store/x2z798f7n0lnv2vld0bfp9s4m5lqm1y9-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok