this derivation will be built:
  /nix/store/k9z5ycjgm7dk4sb8l69k492b5wwyny7g-bcachefs-module-7.0.0-27-generic.drv
building '/nix/store/k9z5ycjgm7dk4sb8l69k492b5wwyny7g-bcachefs-module-7.0.0-27-generic.drv'...