this derivation will be built:
  /nix/store/v5h538lai2snk9wc0fhlky4rb9bfwfi1-interpolate-conformance.drv
building '/nix/store/v5h538lai2snk9wc0fhlky4rb9bfwfi1-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok