make pretty source comparison check be fatal (fixes #52255)

diff --git a/src/tools/compiletest/src/runtest.rs b/src/tools/compiletest/src/runtest.rs
index 408eda5ba5bb58aa6d19848ac6be270c2a15ee4d..59ddc16715d3b6e52ad8264e894a84e2f5bdeb08 100644 (file)
--- a/src/tools/compiletest/src/runtest.rs
+++ b/src/tools/compiletest/src/runtest.rs
@@ -519,9 +519,8 @@ fn print_source(&self, src: String, pretty_type: &str) -> ProcRes {
 
     fn compare_source(&self, expected: &str, actual: &str) {
         if expected != actual {
-            self.error("pretty-printed source does not match expected source");
-            println!(
-                "\n\
+            self.fatal(&format!(
+                "pretty-printed source does not match expected source\n\
                  expected:\n\
                  ------------------------------------------\n\
                  {}\n\
@@ -531,7 +530,7 @@ fn compare_source(&self, expected: &str, actual: &str) {
                  {}\n\
                  ------------------------------------------\n\
                  \n",
-                expected, actual
+                expected, actual)
             );
         }
     }