this derivation will be built:
  /nix/store/r7k8w37gx2xrc62kq538j7g5z52nxjl0-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/r7k8w37gx2xrc62kq538j7g5z52nxjl0-bcachefs-module-7.0.0-38-generic.drv'...