diff --git a/.circleci/config.yml b/.circleci/config.yml
index f543cf04e206c907f84516fab359fb6be43d3ca7..59b9c85b047709719c4381f832caecb4d185de08 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -266,7 +266,7 @@ jobs:
       - run:
           name: Generate checksums of all backend source files to use as Uberjar cache key
           command: >
-            for file in `find ./src -type f -name '*.clj' | sort`;
+            for file in `find ./src ./backend -type f -name '*.clj' | sort`;
               do echo `md5sum $file` >> backend-checksums.txt;
             done;
             echo `md5sum project.clj` >> backend-checksums.txt
diff --git a/test/metabase/query_processor/middleware/cache_test.clj b/test/metabase/query_processor/middleware/cache_test.clj
index 22b50089ec0cd37881ddb8a256728e6a15a85c5e..4133e39ef14e2f83a17d3b9fa1f2fe9df1e0881e 100644
--- a/test/metabase/query_processor/middleware/cache_test.clj
+++ b/test/metabase/query_processor/middleware/cache_test.clj
@@ -34,12 +34,13 @@
         (i/cached-results db-backend query-hash max-age-seconds f))
 
       (save-results! [_ query-hash results]
-        (i/save-results! db-backend query-hash results)
-        (some-> @save-chan* (a/>!! ::save)))
+        (println "@save-chan*:" @save-chan*) ; NOCOMMIT
+        (some-> @save-chan* (a/>!! ::save))
+        (i/save-results! db-backend query-hash results))
 
       (purge-old-entries! [_ max-age-seconds]
-        (i/purge-old-entries! db-backend max-age-seconds)
-        (some-> @purge-chan* (a/>!! ::purge))))))
+        (some-> @purge-chan* (a/>!! ::purge))
+        (i/purge-old-entries! db-backend max-age-seconds)))))
 
 (defn- do-with-test-backend [thunk]
   (binding [cache/*backend* (test-backend)]
@@ -113,7 +114,7 @@
                                                                                 ::exception)))))
                                                      (orig query-hash out-chan))]
             (u/prog1 (thunk)
-              (testing "waiting for save"
+              (testing "\nwaiting for save"
                 (is (= expected-result
                        (mt/wait-for-result save-chan 1000)))))))
         (finally
@@ -131,7 +132,7 @@
       (try
         (reset! purge-chan* purge-chan)
         (u/prog1 (thunk)
-          (testing "waiting for purge"
+          (testing "\nwaiting for purge"
             (is (= expected-result
                    (mt/wait-for-result purge-chan 500)))))
         (finally (reset! purge-chan* orig))))))