propagatedBuildInputs are not propagated

[ghost]

I have some bindings that link to shared objects when the binary is linked, so I need to propagate their dependencies.

callPackage ./Cargo.nix {
  defaultCrateOverrides = pkgs.defaultCrateOverrides // {
    libsensors-sys = attrs: {
      propagatedBuildInputs = [ lm_sensors ];
    };
  };
}

But as far as I can tell it only gets propagated to its direct dependents, not all the way up.

[ghost]

Nevermind, this might have been a misunderstanding on my side about how propagatedBuildInputs work.