syntax_data: {"ast_node_type":"other","tokens":[{"end":52,"kind":"keyword","start":0,"text":"#[allow(rustc::potential_query_instability)]"}]}
source_snippet:         #[allow(rustc::potential_query_instability)]
context_before:         }
context_after:         self.projections.retain(|_, child| !self.inner_values[*child].is_empty());