syntax_data: {"ast_node_type":"variable","tokens":[{"end":79,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:                 let bytes = cv.try_to_raw_bytes(self.tcx()).unwrap_or_else(|| {
context_before:             (ty::ValTreeKind::Branch(_), ty::Array(t, _)) if t == u8_type => {
context_after:                     bug!("expected to convert valtree to raw bytes for type {:?}", t)