diff --git a/libafl_bolts/src/core_affinity.rs b/libafl_bolts/src/core_affinity.rs
index d67eada672..0b43718fb4 100644
--- a/libafl_bolts/src/core_affinity.rs
+++ b/libafl_bolts/src/core_affinity.rs
@@ -790,8 +790,7 @@ mod netbsd {
     #[allow(trivial_numeric_casts)]
     pub fn get_core_ids() -> Result<Vec<CoreId>, Error> {
         Ok((0..(usize::from(available_parallelism()?)))
-            .into_iter()
-            .map(|n| CoreId(n))
+            .map(CoreId)
             .collect::<Vec<_>>())
     }
 
@@ -845,8 +844,7 @@ mod openbsd {
     #[allow(trivial_numeric_casts)]
     pub fn get_core_ids() -> Result<Vec<CoreId>, Error> {
         Ok((0..(usize::from(available_parallelism()?)))
-            .into_iter()
-            .map(|n| CoreId(n))
+            .map(CoreId)
             .collect::<Vec<_>>())
     }
 }
diff --git a/libafl_bolts/src/minibsod.rs b/libafl_bolts/src/minibsod.rs
index 5359b716df..71fbcad5a1 100644
--- a/libafl_bolts/src/minibsod.rs
+++ b/libafl_bolts/src/minibsod.rs
@@ -642,7 +642,9 @@ fn write_minibsod<W: Write>(writer: &mut BufWriter<W>) -> Result<(), std::io::Er
         libc::VM_PROC,
         libc::VM_PROC_MAP,
         -1,
-        std::mem::size_of::<libc::kinfo_vmentry>() as i32,
+        std::mem::size_of::<libc::kinfo_vmentry>()
+            .try_into()
+            .expect("Invalid libc::kinfo_vmentry size"),
     ];
     let mib = arr.as_ptr();
     let miblen = arr.len() as u32;
@@ -737,7 +739,7 @@ fn write_minibsod<W: Write>(writer: &mut BufWriter<W>) -> Result<(), std::io::Er
                 }
                 // OpenBSD's vm mappings have no knowledge of their paths on disk
                 let i = format!("{}-{}\n", entry.kve_start, entry.kve_end);
-                writer.write(&i.into_bytes())?;
+                writer.write_all(&i.into_bytes())?;
                 entry.kve_start = entry.kve_start + 1;
             }
         }