Show backtrace locations when I/O timed out

1 files changed, 2 insertions, 2 deletions

diff --git a/test/readline/test_readline.rb b/test/readline/test_readline.rb
index 2b9726f50e..196429d754 100644
--- a/test/readline/test_readline.rb
+++ b/test/readline/test_readline.rb
@@ -541,8 +541,8 @@ module BasetestReadline
             end
           end
         end
-      rescue Timeout::Error
-        assert false, "Timed out to handle SIGINT.\nLog: #{log}\n----"
+      rescue Timeout::Error => e
+        assert false, "Timed out to handle SIGINT.\nLog: #{log}\nBacktrace:\n#{e.backtrace_locations.join("\n")}\n----"
         asserted = true
       end
       [log, Process.wait2(pid)[1]]