Spurious `can't find crate for retina_filtergen`

When compiling the retina project, sometimes I get a strange error saying error[E0463]: can't find crate for retina_filtergen. It doesn't happen every time, and when it happens, I have a workaround (I expand every macro imported from this crate and remove filtergen dependency, build the project once, and then restore the original state and it works until next cargo clean) so it seems it is a compiler/cargo bug.

I was not able to find exact reproducing instructions, but I have a machine which it reliably happens on it and I can post more logs and artifacts if it helps. I have no idea why it happens, but if I want to guess, I think compiler/linker fails to build the filtergen crate without a visible error (maybe due its C dependencies) so cargo can't find it.

Start by reproducing the failure in the retina project with cargo clean and a normal build, preserving compiler, linker, and Cargo logs. Compare builds involving the filtergen crate and its C dependencies; done means producing a reliable minimal reproduction or identifying a clear failure diagnostic.