this derivation will be built:
  /nix/store/7hm681w6a89sl7kixb40xzy6rccbf0gm-bcachefs-module-7.0.0-28-generic.drv
building '/nix/store/7hm681w6a89sl7kixb40xzy6rccbf0gm-bcachefs-module-7.0.0-28-generic.drv'...