this derivation will be built:
  /nix/store/9jsmh989s6q77l4kjmdwpwf09hmqppf9-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/9jsmh989s6q77l4kjmdwpwf09hmqppf9-bcachefs-module-7.0.0-39-generic.drv'...