{"ast_node_type":"other","tokens":[{"end":84,"kind":"keyword","start":0,"text":"debug_assert_eq!(env_canonicalizer.binder_index,"}]}
                    debug_assert_eq!(env_canonicalizer.binder_index, ty::INNERMOST);
                    let param_env = param_env.fold_with(&mut env_canonicalizer);
                    CanonicalParamEnvCacheEntry {