rustdoc: output stderr on doc-test fail

Forward output from stderr when a test executable panics/fails.

diff --git a/src/librustdoc/test.rs b/src/librustdoc/test.rs
index 702a32be58684af5a56c7529dc570934628c8c27..babbe15b17df51ad1beeaa06f6540f6c2c951e74 100644 (file)
--- a/src/librustdoc/test.rs
+++ b/src/librustdoc/test.rs
@@ -243,8 +243,9 @@ fn drop(&mut self) {
             if should_panic && out.status.success() {
                 panic!("test executable succeeded when it should have failed");
             } else if !should_panic && !out.status.success() {
-                panic!("test executable failed:\n{:?}",
-                      str::from_utf8(&out.stdout));
+                panic!("test executable failed:\n{}\n{}",
+                       str::from_utf8(&out.stdout).unwrap_or(""),
+                       str::from_utf8(&out.stderr).unwrap_or(""));
             }
         }
     }