Cosmetic improvements for tests
diff --git a/diesel_compile_tests/tests/compile-fail/pg_specific_expressions_cant_be_used_in_a_sqlite_query.rs b/diesel_compile_tests/tests/compile-fail/pg_specific_expressions_cant_be_used_in_a_sqlite_query.rs
index cf82a3d..5a64265 100644
--- a/diesel_compile_tests/tests/compile-fail/pg_specific_expressions_cant_be_used_in_a_sqlite_query.rs
+++ b/diesel_compile_tests/tests/compile-fail/pg_specific_expressions_cant_be_used_in_a_sqlite_query.rs
@@ -35,5 +35,5 @@
     insert_into(users).values(&NewUser("Sean"))
         .on_conflict(on_constraint("name"))
         .execute(&connection);
-    //~^ ERROR 0599
+    //~^ ERROR no method named `execute` found
 }
diff --git a/diesel_tests/tests/insert_from_select.rs b/diesel_tests/tests/insert_from_select.rs
index 6ed9a02..fe5ac61 100644
--- a/diesel_tests/tests/insert_from_select.rs
+++ b/diesel_tests/tests/insert_from_select.rs
@@ -280,7 +280,7 @@
 
     let conn = connection_with_sean_and_tess_in_users_table();
 
-    sql_query("CREATE UNIQUE INDEX index_on_title  ON posts (title)")
+    sql_query("CREATE UNIQUE INDEX index_on_title ON posts (title)")
         .execute(&conn)
         .unwrap();