Fix testing by using RUST_TEST_THREADS=1.

.travis.yml

@@ -27,5 +27,7 @@ script:
   - cargo test
 env:
   - DATABASE_URL=postgres://lemmy:password@localhost:5432/lemmy
+  - RUST_TEST_THREADS=1
+
 addons:
   postgresql: "9.4"

server/src/schema.rs

@@ -335,30 +335,30 @@ joinable!(user_mention -> comment (comment_id));
 joinable!(user_mention -> user_ (recipient_id));
 
 allow_tables_to_appear_in_same_query!(
-  category,
-  comment,
-  comment_like,
-  comment_saved,
-  community,
-  community_follower,
-  community_moderator,
-  community_user_ban,
-  mod_add,
-  mod_add_community,
-  mod_ban,
-  mod_ban_from_community,
-  mod_lock_post,
-  mod_remove_comment,
-  mod_remove_community,
-  mod_remove_post,
-  mod_sticky_post,
-  password_reset_request,
-  post,
-  post_like,
-  post_read,
-  post_saved,
-  site,
-  user_,
-  user_ban,
-  user_mention,
+    category,
+    comment,
+    comment_like,
+    comment_saved,
+    community,
+    community_follower,
+    community_moderator,
+    community_user_ban,
+    mod_add,
+    mod_add_community,
+    mod_ban,
+    mod_ban_from_community,
+    mod_lock_post,
+    mod_remove_comment,
+    mod_remove_community,
+    mod_remove_post,
+    mod_sticky_post,
+    password_reset_request,
+    post,
+    post_like,
+    post_read,
+    post_saved,
+    site,
+    user_,
+    user_ban,
+    user_mention,
 );