Rollup merge of #131596 - RalfJung:interp-result-must-use, r=jieyouxu

tgross35 · web-flow · commit 421abc81cdb7 · 2024-10-12T11:08:44.000-05:00
mark InterpResult as must_use This was forgotten in #130885
diff --git a/compiler/rustc_middle/src/mir/interpret/error.rs b/compiler/rustc_middle/src/mir/interpret/error.rs
@@ -754,6 +754,7 @@ impl Drop for Guard {
 ///
 /// We also make things panic if this type is ever implicitly dropped.
 #[derive(Debug)]
+#[must_use]
 pub struct InterpResult_<'tcx, T> {
     res: Result<T, InterpErrorInfo<'tcx>>,
     guard: Guard,
