this derivation will be built:
  /nix/store/1z7hvr7dmi5nb1gqd52mfmlrbdkj6xmn-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/1z7hvr7dmi5nb1gqd52mfmlrbdkj6xmn-bcachefs-module-7.0.0-39-generic.drv'...