--- futures-0.3.19/Cargo.toml	1970-01-01T00:00:01+00:00
+++ futures-0.3.19/Cargo.toml	2021-12-20T20:56:39.068563+00:00
@@ -60,6 +60,9 @@
 [dev-dependencies.assert_matches]
 version = "1.3.0"
 
+[dev-dependencies.futures-test]
+version = "0.3.19"
+
 [dev-dependencies.pin-project]
 version = "1.0.1"