diff --git a/afl/src/events/mod.rs b/afl/src/events/mod.rs
index d810aa19e9..fdee557a7a 100644
--- a/afl/src/events/mod.rs
+++ b/afl/src/events/mod.rs
@@ -226,6 +226,7 @@ where
             } => {
                 // here u should match sender_id, if equal to the current one do not re-execute
                 // we need to pass engine to process() too, TODO
+                #[cfg(feature = "std")]
                 println!("PLACEHOLDER: received NewTestcase");
                 Ok(())
             }
diff --git a/afl/src/executors/mod.rs b/afl/src/executors/mod.rs
index 0b12a9b9a6..7a5ae847fc 100644
--- a/afl/src/executors/mod.rs
+++ b/afl/src/executors/mod.rs
@@ -1,5 +1,7 @@
 pub mod inmemory;
 
+use alloc::boxed::Box;
+
 use crate::inputs::Input;
 use crate::observers::observer_serde::NamedSerdeAnyMap;
 use crate::observers::Observer;
diff --git a/afl/src/observers/mod.rs b/afl/src/observers/mod.rs
index 4422b3d27f..1aaa3b2b3b 100644
--- a/afl/src/observers/mod.rs
+++ b/afl/src/observers/mod.rs
@@ -1,5 +1,6 @@
 extern crate num;
 
+use alloc::boxed::Box;
 use core::any::Any;
 use core::slice::from_raw_parts_mut;
 use num::Integer;
diff --git a/afl/src/serde_anymap.rs b/afl/src/serde_anymap.rs
index f95b06b5b9..6960d36741 100644
--- a/afl/src/serde_anymap.rs
+++ b/afl/src/serde_anymap.rs
@@ -1,6 +1,7 @@
 use serde::{Deserialize, Serialize};
 
 use alloc::boxed::Box;
+use alloc::vec::Vec;
 use core::any::{Any, TypeId};
 
 pub fn pack_type_id(id: u64) -> TypeId {