this derivation will be built:
  /nix/store/cfcq6l81id402j84i248vf8ky5qyqxc2-bcachefs-module-7.0.0-34-generic.drv
building '/nix/store/cfcq6l81id402j84i248vf8ky5qyqxc2-bcachefs-module-7.0.0-34-generic.drv'...