Had to add this stub to make the linker happy

rust_experiments/src/lib.rs

@@ -427,3 +427,9 @@ pub extern "C" fn panic_fmt() -> ! { loop {}}
 #[lang = "eh_unwind_resume"]
 #[no_mangle]
 pub extern "C" fn eh_unwind_resume() { }
+
+#[allow(non_snake_case)]
+#[no_mangle]
+pub extern "C" fn _Unwind_Resume() -> ! {
+    loop {}
+}