this derivation will be built:
  /nix/store/g39m0d9yzlka6z1pdn8rsg4pdl4lsx81-interpolate-conformance.drv
building '/nix/store/g39m0d9yzlka6z1pdn8rsg4pdl4lsx81-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok