this derivation will be built:
  /nix/store/ln4j50lb5g2adisvfnwg6s9mkhdw128h-structure-package-set-invariant.drv
building '/nix/store/ln4j50lb5g2adisvfnwg6s9mkhdw128h-structure-package-set-invariant.drv'

upload niks3: ok