this derivation will be built:
  /nix/store/fz9ichgdzvx904yn6j5bqz7wc9523wz9-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/fz9ichgdzvx904yn6j5bqz7wc9523wz9-bcachefs-module-7.0.0-38-generic.drv'...