syntax_data: {"ast_node_type":"other","tokens":[{"end":106,"kind":"keyword","start":0,"text":"time_passes_format:"}]}
source_snippet:     time_passes_format: TimePassesFormat = (TimePassesFormat::Text, parse_time_passes_format, [UNTRACKED],
context_before:         "measure time of each rustc pass (default: no)"),
context_after:         "the format to use for -Z time-passes (`text` (default) or `json`)"),