this derivation will be built:
  /nix/store/9bs1c360f97anrrq0hfdg9pkf91zg2pm-interpolate-conformance.drv
building '/nix/store/9bs1c360f97anrrq0hfdg9pkf91zg2pm-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok