Enable tests

Modify Cargo.toml to include dev-dependencies.

Test: atest
Change-Id: I8d59aa7bada34ead15fa5757327d3f06b3f74c08
diff --git a/TEST_MAPPING b/TEST_MAPPING
index e2df61d..d8f525d 100644
--- a/TEST_MAPPING
+++ b/TEST_MAPPING
@@ -1,39 +1,11 @@
 // Generated by update_crate_tests.py for tests that depend on this crate.
 {
-  "imports": [
-    {
-      "path": "external/rust/crates/anyhow"
-    },
-    {
-      "path": "external/rust/crates/tokio"
-    }
-  ],
   "presubmit": [
     {
-      "name": "ZipFuseTest"
+      "name": "futures-executor_test_src_lib"
     },
     {
-      "name": "authfs_device_test_src_lib"
-    },
-    {
-      "name": "doh_unit_test"
-    },
-    {
-      "name": "virtualizationservice_device_test"
-    }
-  ],
-  "presubmit-rust": [
-    {
-      "name": "ZipFuseTest"
-    },
-    {
-      "name": "authfs_device_test_src_lib"
-    },
-    {
-      "name": "doh_unit_test"
-    },
-    {
-      "name": "virtualizationservice_device_test"
+      "name": "futures-executor_test_tests_local_pool"
     }
   ]
 }