Parser combinators is more of a concept than a library. You could make your own supporting the stuff you need. I like writing programs in languages I don't know or I barely know. I usually just take one of the popular libraries in any given language.

For Rust I used Nom and I didn't mind it all that much although I noticed it's quite baroque. If I had more to write I'd probably make some wrappers or macros of my own for most commonly used Nom snippets.