this derivation will be built:
  /nix/store/w720z7idiblp52q3a2h8yyvkzhgwl9a8-interpolate-conformance.drv
building '/nix/store/w720z7idiblp52q3a2h8yyvkzhgwl9a8-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok