syntax_data: {"ast_node_type":"other","tokens":[{"end":68,"kind":"keyword","start":0,"text":"v0::push_ident(tcx.crate_name(crate_num).as_str(),"}]}
source_snippet:     v0::push_ident(tcx.crate_name(crate_num).as_str(), &mut symbol);
context_before:     let mut symbol = "_RNxC".to_string();