this derivation will be built:
  /nix/store/8qc738z53cv6p83kn2imqfhb4vmh9k5y-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/8qc738z53cv6p83kn2imqfhb4vmh9k5y-bcachefs-module-7.0.0-29-generic.drv'...