this derivation will be built:
  /nix/store/ljwjcjagzmfkph61cz72k9y4c9p6jbjn-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/ljwjcjagzmfkph61cz72k9y4c9p6jbjn-bcachefs-module-7.0.0-29-generic.drv'...