Fix latest clippy (#1258)

* Fix latest clippy

* oops needs alloc

libafl/src/events/simple.rs

@@ -122,8 +122,7 @@ where
         _executor: &mut E,
     ) -> Result<usize, Error> {
         let count = self.events.len();
-        while !self.events.is_empty() {
-            let event = self.events.pop().unwrap();
+        while let Some(event) = self.events.pop() {
             self.handle_in_client(state, event)?;
         }
         Ok(count)

libafl/src/generators/mod.rs

@@ -69,7 +69,7 @@ where
         Self {
             gen,
             state,
-            phantom: PhantomData::default(),
+            phantom: PhantomData,
         }
     }
 }

libafl/src/lib.rs

@@ -75,10 +75,12 @@ Welcome to `LibAFL`
 #[macro_use]
 extern crate std;
 #[macro_use]
+#[doc(hidden)]
 pub extern crate alloc;
 #[macro_use]
 extern crate static_assertions;
 #[cfg(feature = "ctor")]
+#[doc(hidden)]
 pub use ctor::ctor;
 
 // Re-export derive(SerdeAny)