diff --git a/core/io/generic.rs b/core/io/generic.rs
index d67a93dd7..fd59ece88 100644
--- a/core/io/generic.rs
+++ b/core/io/generic.rs
@@ -1,18 +1,16 @@
+use super::MemoryIO;
 use crate::{Clock, Completion, File, Instant, LimboError, OpenFlags, Result, IO};
 use std::cell::RefCell;
 use std::io::{Read, Seek, Write};
 use std::sync::Arc;
 use tracing::{debug, trace};
-use super::MemoryIO;
 
-pub struct GenericIO {
-}
+pub struct GenericIO {}
 
 impl GenericIO {
     pub fn new() -> Result<Self> {
         debug!("Using IO backend 'generic'");
-        Ok(Self {
-        })
+        Ok(Self {})
     }
 }
 
@@ -42,6 +40,10 @@ impl IO for GenericIO {
         getrandom::getrandom(&mut buf).unwrap();
         i64::from_ne_bytes(buf)
     }
+
+    fn get_memory_io(&self) -> Arc<MemoryIO> {
+        Arc::new(MemoryIO::new())
+    }
 }
 
 impl Clock for GenericIO {
@@ -52,10 +54,6 @@ impl Clock for GenericIO {
             micros: now.timestamp_subsec_micros(),
         }
     }
-
-    fn get_memory_io(&self) -> Arc<MemoryIO> {
-        Arc::new(MemoryIO::new())
-    }   
 }
 
 pub struct GenericFile {
diff --git a/core/io/io_uring.rs b/core/io/io_uring.rs
index 6e2fc1e7e..b4b21aca8 100644
--- a/core/io/io_uring.rs
+++ b/core/io/io_uring.rs
@@ -1,4 +1,5 @@
 use super::{common, Completion, File, OpenFlags, WriteCompletion, IO};
+use crate::io::clock::{Clock, Instant};
 use crate::{LimboError, MemoryIO, Result};
 use rustix::fs::{self, FlockOperation, OFlags};
 use rustix::io_uring::iovec;
@@ -11,7 +12,6 @@ use std::rc::Rc;
 use std::sync::Arc;
 use thiserror::Error;
 use tracing::{debug, trace};
-use crate::io::clock::{Clock, Instant};
 
 const MAX_IOVECS: u32 = 128;
 const SQPOLL_IDLE: u32 = 1000;
@@ -197,6 +197,10 @@ impl IO for UringIO {
         getrandom::getrandom(&mut buf).unwrap();
         i64::from_ne_bytes(buf)
     }
+
+    fn get_memory_io(&self) -> Arc<MemoryIO> {
+        Arc::new(MemoryIO::new())
+    }
 }
 
 impl Clock for UringIO {
@@ -207,10 +211,6 @@ impl Clock for UringIO {
             micros: now.timestamp_subsec_micros(),
         }
     }
-    
-    fn get_memory_io(&self) -> Arc<MemoryIO> {
-        Arc::new(MemoryIO::new())
-    }
 }
 
 pub struct UringFile {
diff --git a/core/io/vfs.rs b/core/io/vfs.rs
index 6af47b176..95b4055d0 100644
--- a/core/io/vfs.rs
+++ b/core/io/vfs.rs
@@ -51,8 +51,8 @@ impl IO for VfsMod {
         unsafe { (vfs.gen_random_number)() }
     }
 
-    fn get_memory_io(&self) -> Option<Arc<MemoryIO>> {
-        Some(Arc::new(MemoryIO::new()))
+    fn get_memory_io(&self) -> Arc<MemoryIO> {
+        Arc::new(MemoryIO::new())
     }
 }
 
@@ -69,10 +69,6 @@ impl VfsMod {
             cstr.to_string_lossy().into_owned()
         }
     }
-
-    fn get_memory_io(&self) -> Arc<MemoryIO> {
-        Arc::new(MemoryIO::new())
-    }
 }
 
 impl File for VfsFileImpl {
diff --git a/core/io/windows.rs b/core/io/windows.rs
index f970ef02d..6c46d1973 100644
--- a/core/io/windows.rs
+++ b/core/io/windows.rs
@@ -1,17 +1,15 @@
+use super::MemoryIO;
 use crate::{Clock, Completion, File, Instant, LimboError, OpenFlags, Result, IO};
 use std::cell::RefCell;
 use std::io::{Read, Seek, Write};
 use std::sync::Arc;
 use tracing::{debug, trace};
-use super::MemoryIO;
-pub struct WindowsIO {
-}
+pub struct WindowsIO {}
 
 impl WindowsIO {
     pub fn new() -> Result<Self> {
         debug!("Using IO backend 'syscall'");
-        Ok(Self {
-        })
+        Ok(Self {})
     }
 }
 
@@ -40,6 +38,10 @@ impl IO for WindowsIO {
         getrandom::getrandom(&mut buf).unwrap();
         i64::from_ne_bytes(buf)
     }
+
+    fn get_memory_io(&self) -> Arc<MemoryIO> {
+        Arc::new(MemoryIO::new())
+    }
 }
 
 impl Clock for WindowsIO {
@@ -50,10 +52,6 @@ impl Clock for WindowsIO {
             micros: now.timestamp_subsec_micros(),
         }
     }
-  
-    fn get_memory_io(&self) -> Arc<MemoryIO> {
-        Arc::new(MemoryIO::new())
-    }
 }
 
 pub struct WindowsFile {