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/layout_aligned_opaque.cpp

@@ -0,0 +1,35 @@
+#define CBINDGEN_PACKED        __attribute__ ((packed))
+#define CBINDGEN_ALIGNED(n)    __attribute__ ((aligned(n)))
+
+
+#include <cstdarg>
+#include <cstdint>
+#include <cstdlib>
+#include <ostream>
+#include <new>
+
+struct OpaqueAlign16Union;
+
+struct OpaqueAlign1Struct;
+
+struct OpaqueAlign1Union;
+
+struct OpaqueAlign2Struct;
+
+struct OpaqueAlign32Struct;
+
+struct OpaqueAlign4Struct;
+
+struct OpaqueAlign4Union;
+
+struct OpaqueAlign8Struct;
+
+struct CBINDGEN_PACKED PackedStruct {
+  uintptr_t arg1;
+  uint8_t *arg2;
+};
+
+union CBINDGEN_PACKED PackedUnion {
+  uintptr_t variant1;
+  uint8_t *variant2;
+};