this derivation will be built:
  /nix/store/ll78qv1md59jp9khzzw504d8rrq5bwmv-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/ll78qv1md59jp9khzzw504d8rrq5bwmv-bcachefs-module-7.0.0-38-generic.drv'...