this derivation will be built:
  /nix/store/p5p5paa1dr6kfwl478zw96lks4crl2kz-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/p5p5paa1dr6kfwl478zw96lks4crl2kz-bcachefs-module-7.0.0-29-generic.drv'...