diff --git a/turshi/src/memory.rs b/turshi/src/memory.rs
index b9b972c8777..534823e49ca 100644
--- a/turshi/src/memory.rs
+++ b/turshi/src/memory.rs
@@ -8,7 +8,7 @@ use std::{
 
 use crate::{helper::*, word::CairoWord};
 use ark_ff::Field;
-use core::iter::repeat;
+use core::iter::repeat_n;
 
 /// This data structure stores the memory of the program
 pub struct CairoMemory<F> {
@@ -85,7 +85,7 @@ impl<F: Field> CairoMemory<F> {
         // you will need to extend the vector with enough spaces (taking into account that
         // vectors start by index 0, the 0 address is dummy, and size starts in 1)
         if let Some(additional) = addr.checked_sub(self.len() - 1) {
-            self.data.extend(repeat(None).take(additional as usize));
+            self.data.extend(repeat_n(None, additional as usize));
         }
     }
 
diff --git a/turshi/src/runner.rs b/turshi/src/runner.rs
index fe7664ddb98..ecc8690d2e6 100644
--- a/turshi/src/runner.rs
+++ b/turshi/src/runner.rs
@@ -261,7 +261,7 @@ pub struct CairoStep<'a, F> {
 
 impl<'a, F: Field> CairoStep<'a, F> {
     /// Creates a new Cairo execution step from a step index, a Cairo word, and current pointers
-    pub fn new(mem: &mut CairoMemory<F>, ptrs: CairoState<F>) -> CairoStep<F> {
+    pub fn new(mem: &mut CairoMemory<F>, ptrs: CairoState<F>) -> CairoStep<'_, F> {
         CairoStep {
             mem,
             curr: ptrs,
@@ -503,7 +503,7 @@ pub struct CairoProgram<'a, F> {
 
 impl<'a, F: Field> CairoProgram<'a, F> {
     /// Creates a Cairo execution from the public information (memory and initial pointers)
-    pub fn new(mem: &mut CairoMemory<F>, pc: u64) -> CairoProgram<F> {
+    pub fn new(mem: &mut CairoMemory<F>, pc: u64) -> CairoProgram<'_, F> {
         let ap = mem.len();
         let mut prog = CairoProgram {
             steps: F::zero(),