syntax_data: {"ast_node_type":"other","tokens":[{"end":46,"kind":"keyword","start":0,"text":"#[instrument(level"}]}
source_snippet:     #[instrument(level = "debug", skip(self))]
context_before: impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
context_after:     pub(super) fn confirm_candidate(