this derivation will be built:
  /nix/store/rn925dpwq28s4p6lirg92hm09daqc44q-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/rn925dpwq28s4p6lirg92hm09daqc44q-bcachefs-module-7.0.0-29-generic.drv'...