syntax_data: {"ast_node_type":"other","tokens":[{"end":82,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:         if !drcx.args_may_unify(obligation_args, trait_bound.skip_binder().args) {
context_before:         let obligation_args = obligation.predicate.skip_binder().trait_ref.args;
context_after:             return Err(());