syntax_data: {"ast_node_type":"other","tokens":[{"end":72,"kind":"keyword","start":0,"text":"debug!(\"evaluate_obligation(canonical_goal={:#?})\","}]}
source_snippet:     debug!("evaluate_obligation(canonical_goal={:#?})", canonical_goal);
context_before:     assert!(!tcx.next_trait_solver_globally());
context_after:     let (ref infcx, goal, _canonical_inference_vars) =