feat: 添加 used_with_arg 特性并更新示例代码

Author: ZR233

rdrive/src/lib.rs

@@ -1,4 +1,5 @@
 #![no_std]
+#![feature(used_with_arg)]
 
 #[macro_use]
 extern crate alloc;
@@ -173,6 +174,8 @@ pub fn fdt_phandle_to_device_id(phandle: Phandle) -> Option<DeviceId> {
 /// # Example
 ///
 /// ```rust
+/// #![feature(used_with_arg)]
+/// 
 /// use rdrive::{
 ///     module_driver,
 ///     driver::*,

rdrive/src/manager.rs

@@ -146,12 +146,6 @@ mod tests {
         let container = DeviceContainer::default();
         let dev = container.get_one::<Intc>();
         assert!(dev.is_none(), "Expected no devices found");
-
-        if let Some(dev) = dev {
-            let weak = dev.lock().unwrap();
-            let f = weak.parse_dtb_fn();
-            assert!(f.is_none(), "Expected no parse function for empty device");
-        }
     }
 
     struct IrqTest {}