this derivation will be built:
  /nix/store/f50jj3j0yshcg4bf2y823j41v6jndvh5-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/f50jj3j0yshcg4bf2y823j41v6jndvh5-bcachefs-module-7.0.0-29-generic.drv'...