syntax_data: {"ast_node_type":"other","tokens":[{"end":45,"kind":"keyword","start":0,"text":"(sym::lib,"}]}
source_snippet:     (sym::lib, config::default_lib_output()),
context_before:     (sym::cdylib, CrateType::Cdylib),
context_after:     (sym::staticlib, CrateType::Staticlib),