Yes, it's harder than lisp, but it's still much easier than C. C and C++ have issues due to ambiguities that make them context-sensitive. C++ has it worse because parsing is dependent on typechecking because of templates.
Rust is not 100% context-free, but the feature that is non-context-free (raw strings, a rarely used feature) is still pretty easy to parse, and even if you capped it at 6-level raw strings you'd probably be able to parse all the Rust code out there.
Rust is not 100% context-free, but the feature that is non-context-free (raw strings, a rarely used feature) is still pretty easy to parse, and even if you capped it at 6-level raw strings you'd probably be able to parse all the Rust code out there.