this derivation will be built:
  /nix/store/n3bvjhh0q23892wv4bw6svnvp17fz58d-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/n3bvjhh0q23892wv4bw6svnvp17fz58d-bcachefs-module-7.0.0-39-generic.drv'...