Override rustc version in ui and mir-opt tests to get stable hashes

[rust.git] / src / bootstrap / test.rs

diff --git a/src/bootstrap/test.rs b/src/bootstrap/test.rs
index cb1b0ebf8db4ac883eda6ef61d489fbe4d126ff8..176c06114e01df5de5a0401cec8c631604fc3d6b 100644 (file)
--- a/src/bootstrap/test.rs
+++ b/src/bootstrap/test.rs
@@ -1540,6 +1540,9 @@ fn run(self, builder: &Builder<'_>) {
             }
         }
         cmd.env("RUSTC_BOOTSTRAP", "1");
+        // Override the rustc version used in symbol hashes to reduce the amount of normalization
+        // needed when diffing test output.
+        cmd.env("RUSTC_FORCE_RUSTC_VERSION", "compiletest");
         cmd.env("DOC_RUST_LANG_ORG_CHANNEL", builder.doc_rust_lang_org_channel());
         builder.add_rust_test_threads(&mut cmd);