Vendor dependencies for 0.3.0 release

vendor/sysinfo/tests/send_sync.rs

@@ -0,0 +1,12 @@
+// Take a look at the license at the top of the repository in the LICENSE file.
+
+#[test]
+#[allow(clippy::extra_unused_type_parameters)]
+#[cfg(feature = "system")]
+fn test_send_sync() {
+    fn is_send<T: Send>() {}
+    fn is_sync<T: Sync>() {}
+
+    is_send::<sysinfo::System>();
+    is_sync::<sysinfo::System>();
+}