[INFO] [stdout] error: internal compiler error: compiler/rustc_middle/src/ty/normalize_erasing_regions.rs:195:90: Failed to normalize fn() -> <impl combine::Parser<combine::easy::Stream<&str>, Output = std::string::String> as combine::Parser<combine::easy::Stream<&str>>>::PartialState {<<impl combine::Parser<combine::easy::Stream<&str>, Output = std::string::String> as combine::Parser<combine::easy::Stream<&str>>>::PartialState as std::default::Default>::default}, maybe try to call `try_normalize_erasing_regions` instead