this derivation will be built:
  /nix/store/mqhzmv3cpcs0av5mpcykl3rd6js0flym-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/mqhzmv3cpcs0av5mpcykl3rd6js0flym-bcachefs-module-7.0.0-39-generic.drv'...