this derivation will be built:
  /nix/store/a4919iggyq9m0d12yafxzwxhixgrpgp9-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/a4919iggyq9m0d12yafxzwxhixgrpgp9-bcachefs-module-7.0.0-39-generic.drv'...