change

libraries/xml/Cargo.toml

@@ -10,4 +10,6 @@ serde = { version = "1.0", default-features = false, features = [
     "derive",
     "alloc",
 ] }
-bincode = { version = "1.3.3", default-features = false }
+bincode = { version = "1.3.3", default-features = false, features = [
+    "serde_no_std",
+] }

programs/wasm_syscall_test/src/main.rs

@@ -1,6 +1,7 @@
 #![no_std]
 #![no_main]
 
+#[no_mangle]
 fn _start() {
     unsafe {
         let abc = read_mem_addr(13);