diff --git a/src/field/packed_crandall_avx2.rs b/src/field/packed_crandall_avx2.rs
index 4eb900e7..a5336126 100644
--- a/src/field/packed_crandall_avx2.rs
+++ b/src/field/packed_crandall_avx2.rs
@@ -5,7 +5,6 @@ use std::iter::{Product, Sum};
 use std::ops::{Add, AddAssign, Mul, MulAssign, Neg, Sub, SubAssign};
 
 use crate::field::crandall_field::CrandallField;
-use crate::field::field_types::Field;
 use crate::field::packed_field::PackedField;
 
 // PackedCrandallAVX2 wraps an array of four u64s, with the new and get methods to convert that
@@ -470,7 +469,7 @@ unsafe fn interleave1(x: __m256i, y: __m256i) -> (__m256i, __m256i) {
 
 #[cfg(test)]
 mod tests {
-    use crate::field::crandall_field::CrandallField;
+    use crate::field::field_types::Field;
     use crate::field::packed_crandall_avx2::*;
 
     const TEST_VALS_A: [CrandallField; 4] = [
diff --git a/src/hash/hashing.rs b/src/hash/hashing.rs
index 6e243773..9b4791d3 100644
--- a/src/hash/hashing.rs
+++ b/src/hash/hashing.rs
@@ -1,8 +1,7 @@
 //! Concrete instantiation of a hash function.
 
 use crate::field::extension_field::Extendable;
-use crate::field::field_types::{Field, RichField};
-use crate::hash::gmimc::GMiMC;
+use crate::field::field_types::RichField;
 use crate::hash::hash_types::{HashOut, HashOutTarget};
 use crate::iop::target::Target;
 use crate::plonk::circuit_builder::CircuitBuilder;
diff --git a/src/hash/poseidon_avx2.rs b/src/hash/poseidon_avx2.rs
index c2a617b5..c5e197b6 100644
--- a/src/hash/poseidon_avx2.rs
+++ b/src/hash/poseidon_avx2.rs
@@ -56,7 +56,7 @@ unsafe fn iteration8<const INDEX: usize, const SHIFT: i32>(
 ) -> [Vecs128; 2]
 // 2 vectors of 4 needed to represent entire state.
 where
-    [(); { INDEX + 4 }]: ,
+    [(); INDEX + 4]: ,
     [(); (64 - SHIFT) as usize]: ,
 {
     // Entire state, rotated by INDEX.
@@ -130,8 +130,8 @@ unsafe fn iteration12<const INDEX: usize, const SHIFT: i32>(
 ) -> [Vecs128; 3]
 // 3 vectors of 4 needed to represent entire state.
 where
-    [(); { INDEX + 4 }]: ,
-    [(); { INDEX + 8 }]: ,
+    [(); INDEX + 4]: ,
+    [(); INDEX + 8]: ,
     [(); (64 - SHIFT) as usize]: ,
 {
     // Entire state, rotated by INDEX.