Fix compiler panic with a large number of threads

rust-lang · Oct 30, 2024 · ef30dab · ef30dab
1 parent 16422db
commit ef30dab
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/compiler/rustc_session/src/options.rs b/compiler/rustc_session/src/options.rs
@@ -663,7 +663,9 @@ mod parse {
                 true
             }
             Some(i) => {
-                *slot = i;
+                // We want to cap the number of threads here to avoid large numbers like 999999 and compiler panics.
+                // This solution was suggested here https://github.com/rust-lang/rust/issues/117638#issuecomment-1800925067
+                *slot = i.min(256);
                 true
             }
             None => false,