syntax_data: {"ast_node_type":"other","tokens":[{"end":55,"kind":"keyword","start":0,"text":"embed_bitcode:"}]}
source_snippet:     embed_bitcode: bool = (true, parse_bool, [TRACKED],
context_before:         "version of DWARF debug information to emit (default: 2 or 4, depending on platform)"),
context_after:         "emit bitcode in rlibs (default: yes)"),