this derivation will be built:
  /nix/store/h2zk3906ww7mhryqg2d9s4nbw03f2c6z-interpolate-conformance.drv
building '/nix/store/h2zk3906ww7mhryqg2d9s4nbw03f2c6z-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok