this derivation will be built:
  /nix/store/2fk4fv7g8a4kbr4im0p27vvm8akd8gl9-interpolate-conformance.drv
building '/nix/store/2fk4fv7g8a4kbr4im0p27vvm8akd8gl9-interpolate-conformance.drv'
interpolate-conformance> 10 cases: Nix interpolate == Python interpolate == expected

upload niks3: ok