Auto merge of #129941 - BoxyUwU:bump-boostrap, r=albertlarsan68

Bump boostrap compiler to new beta

Accidentally left some comments on the update cfgs commit directly xd

Author: bors

src/eval.rs

@@ -458,14 +458,7 @@ 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).