syntax_data: {"ast_node_type":"other","tokens":[{"end":67,"kind":"keyword","start":0,"text":"ty::PredicateKind::Clause(ty::ClauseKind::Trait(pred))"}]}
source_snippet:         ty::PredicateKind::Clause(ty::ClauseKind::Trait(pred)) => {
context_after:             // Form 3: A trait obligation for an associated item failed to be met.