this derivation will be built:
  /nix/store/81554q8db3spwbxwf2n69w7yxhc57br2-bcachefs-module-7.0.0-30-generic.drv
building '/nix/store/81554q8db3spwbxwf2n69w7yxhc57br2-bcachefs-module-7.0.0-30-generic.drv'...