syntax_data: {"ast_node_type":"other","tokens":[{"end":95,"kind":"keyword","start":0,"text":"\"parse"}]}
source_snippet:         "parse the crate root file only; do not parse other files, compile, assemble, or link \
context_before:     parse_crate_root_only: bool = (false, parse_bool, [UNTRACKED],
context_after:         (default: no)"),