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-rw-r--r--src/bootstrap/tool.rs5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/bootstrap/tool.rs b/src/bootstrap/tool.rs
index 4f2426648fd..a99bacfb616 100644
--- a/src/bootstrap/tool.rs
+++ b/src/bootstrap/tool.rs
@@ -52,7 +52,10 @@ impl Step for ToolBuild {
         let is_optional_tool = self.is_optional_tool;
 
         match self.mode {
-            Mode::ToolRustc => builder.ensure(compile::Rustc { compiler, target }),
+            Mode::ToolRustc => {
+                builder.ensure(compile::Std { compiler, target: compiler.host });
+                builder.ensure(compile::Rustc { compiler, target });
+            }
             Mode::ToolStd => builder.ensure(compile::Std { compiler, target }),
             Mode::ToolBootstrap => {} // uses downloaded stage0 compiler libs
             _ => panic!("unexpected Mode for tool build"),