this derivation will be built:
  /nix/store/l5j337l7jmd5sg4khydyxynsnd4bahij-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/l5j337l7jmd5sg4khydyxynsnd4bahij-bcachefs-module-7.0.0-29-generic.drv'...