syntax_data: {"ast_node_type":"other","tokens":[{"end":24,"kind":"keyword","start":0,"text":"format!("}]}
source_snippet:                 format!(
context_before:             IntercrateAmbiguityCause::UpstreamCrateUpdate { trait_ref, self_ty } => {
context_after:                     "upstream crates may add a new impl of trait `{trait_desc}`{self_desc} \