From 0708b289b72fc3328c0244be6c1b267bba18fabd Mon Sep 17 00:00:00 2001
From: Ralf Jung <post@ralfj.de>
Date: Sun, 18 Aug 2024 13:36:11 +0200
Subject: [PATCH] fix build with bootstrap compiler

---
 src/tools/miri/src/eval.rs | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/tools/miri/src/eval.rs b/src/tools/miri/src/eval.rs
index 0850a8f24d9..bb623c66892 100644
--- a/src/tools/miri/src/eval.rs
+++ b/src/tools/miri/src/eval.rs
@@ -458,7 +458,14 @@ pub fn eval_entry<'tcx>(
         panic::resume_unwind(panic_payload)
     });
     // `Ok` can never happen.
+    #[cfg(not(bootstrap))]
     let Err(res) = res;
+    #[cfg(bootstrap)]
+    let res = match res {
+        Err(res) => res,
+        // `Ok` can never happen
+        Ok(never) => match never {},
+    };
 
     // Machine cleanup. Only do this if all threads have terminated; threads that are still running
     // might cause Stacked Borrows errors (https://github.com/rust-lang/miri/issues/2396).