syntax_data: {"ast_node_type":"other","tokens":[{"end":104,"kind":"keyword","start":0,"text":"proc_macro_execution_strategy:"}]}
source_snippet:     proc_macro_execution_strategy: ProcMacroExecutionStrategy = (ProcMacroExecutionStrategy::SameThread,
context_before:          "show backtraces for panics during proc-macro execution (default: no)"),
context_after:         parse_proc_macro_execution_strategy, [UNTRACKED],