moped.diff

diff --git a/lib/moped/connection/queue.rb b/lib/moped/connection/queue.rb
index fe3a336..82fc666 100644
--- a/lib/moped/connection/queue.rb
+++ b/lib/moped/connection/queue.rb
@@ -84,7 +84,7 @@ module Moped
         loop do
           return queue.pop unless queue.empty?
           wait = deadline - Time.now
-          raise Timeout::Error, "Waited for item but none was pushed." if wait <= 0
+          raise Timeout::Error, "Waited for item but none was pushed. [thread list: #{Thread.list}, current: #{Thread.current.object_id}]" if wait <= 0
           resource.wait(mutex, wait)
         end
       end