syntax_data: {"ast_node_type":"other","tokens":[{"end":72,"kind":"keyword","start":0,"text":"tcx.dcx().emit_err(PeekMustBeNotTemporary"}]}
source_snippet:                     tcx.dcx().emit_err(PeekMustBeNotTemporary { span });
context_before:                 _ => {
context_after:                     return None;