syntax_data: {"ast_node_type":"struct","tokens":[{"end":73,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// Construct a temporary lifetime restricted to just the local scope
context_before: impl<'a, 'tcx> Builder<'a, 'tcx> {
context_after:     pub(crate) fn local_temp_lifetime(&self) -> TempLifetime {