diff --git a/ruby/lib/ci/queue/redis/base.rb b/ruby/lib/ci/queue/redis/base.rb
index 7124cc7e..5f9be7b7 100644
--- a/ruby/lib/ci/queue/redis/base.rb
+++ b/ruby/lib/ci/queue/redis/base.rb
@@ -133,11 +133,15 @@ def running
           redis.zcard(key('running'))
         end
 
-        def to_a
+        def test_ids
           redis.multi do |transaction|
             transaction.lrange(key('queue'), 0, -1)
             transaction.zrange(key('running'), 0, -1)
-          end.flatten.reverse.map { |k| index.fetch(k) }
+          end.flatten
+        end
+
+        def to_a
+          test_ids.reverse.map { |k| index.fetch(k) }
         end
 
         def progress
diff --git a/ruby/lib/ci/queue/redis/supervisor.rb b/ruby/lib/ci/queue/redis/supervisor.rb
index a473e60c..96e796ce 100644
--- a/ruby/lib/ci/queue/redis/supervisor.rb
+++ b/ruby/lib/ci/queue/redis/supervisor.rb
@@ -39,7 +39,19 @@ def wait_for_workers
             yield if block_given?
           end
 
-          puts "Aborting, timed out." if time_left <= 0 && !exhausted?
+          if time_left <= 0 && !exhausted?
+            puts "Aborting, timed out."
+
+            remaining_tests = test_ids
+            remaining_tests.first(10).each do |id|
+              puts "  #{id}"
+            end
+
+            if remaining_tests.size > 10
+              puts "  ..."
+            end
+          end
+
           puts "Aborting, it seems all workers died." if time_left_with_no_workers <= 0 && !exhausted?
 
           exhausted?