RPM build fix (reverted CI changes which will need to be un-reverted or made conditional) and vendor Rust dependencies to make builds much faster in any CI system.

zeroidc/vendor/cbindgen/tests/expectations/std_lib.cpp

@@ -0,0 +1,22 @@
+#include <cstdarg>
+#include <cstdint>
+#include <cstdlib>
+#include <ostream>
+#include <new>
+
+template<typename T = void>
+struct Option;
+
+template<typename T = void, typename E = void>
+struct Result;
+
+struct String;
+
+template<typename T = void>
+struct Vec;
+
+extern "C" {
+
+void root(const Vec<String> *a, const Option<int32_t> *b, const Result<int32_t, String> *c);
+
+} // extern "C"