{"ast_node_type":"other","tokens":[{"end":51,"kind":"keyword","start":0,"text":"UndefinedBehavior(UndefinedBehaviorInfo<'tcx>),"}]}
    UndefinedBehavior(UndefinedBehaviorInfo<'tcx>),
    /// The program caused undefined behavior.
    /// The program did something the interpreter does not support (some of these *might* be UB