diff --git a/evm/src/bin/assemble.rs b/evm/src/bin/assemble.rs
index 68eeadf8..1cf3a67c 100644
--- a/evm/src/bin/assemble.rs
+++ b/evm/src/bin/assemble.rs
@@ -9,5 +9,5 @@ fn main() {
     args.next();
     let file_contents: Vec<_> = args.map(|path| fs::read_to_string(path).unwrap()).collect();
     let assembled = assemble_to_bytes(&file_contents[..]);
-    println!("{}", encode(&assembled));
+    println!("{}", encode(assembled));
 }
diff --git a/evm/src/cpu/kernel/assembler.rs b/evm/src/cpu/kernel/assembler.rs
index 09af71bf..aad2dd53 100644
--- a/evm/src/cpu/kernel/assembler.rs
+++ b/evm/src/cpu/kernel/assembler.rs
@@ -83,7 +83,7 @@ impl Macro {
         self.params
             .iter()
             .position(|p| p == param)
-            .unwrap_or_else(|| panic!("No such param: {} {:?}", param, &self.params))
+            .unwrap_or_else(|| panic!("No such param: {param} {:?}", &self.params))
     }
 }
 
@@ -140,7 +140,7 @@ fn find_macros(files: &[File]) -> HashMap<MacroSignature, Macro> {
                     items: items.clone(),
                 };
                 let old = macros.insert(signature.clone(), macro_);
-                assert!(old.is_none(), "Duplicate macro signature: {:?}", signature);
+                assert!(old.is_none(), "Duplicate macro signature: {signature:?}");
             }
         }
     }
@@ -186,9 +186,9 @@ fn expand_macro_call(
     };
     let macro_ = macros
         .get(&signature)
-        .unwrap_or_else(|| panic!("No such macro: {:?}", signature));
+        .unwrap_or_else(|| panic!("No such macro: {signature:?}"));
 
-    let get_actual_label = |macro_label| format!("@{}.{}", macro_counter, macro_label);
+    let get_actual_label = |macro_label| format!("@{macro_counter}.{macro_label}");
 
     let get_arg = |var| {
         let param_index = macro_.get_param_index(var);
@@ -242,7 +242,7 @@ fn inline_constants(body: Vec<Item>, constants: &HashMap<String, U256>) -> Vec<I
     let resolve_const = |c| {
         *constants
             .get(&c)
-            .unwrap_or_else(|| panic!("No such constant: {}", c))
+            .unwrap_or_else(|| panic!("No such constant: {c}"))
     };
 
     body.into_iter()
@@ -283,15 +283,15 @@ fn find_labels(
             | Item::Repeat(_, _)
             | Item::StackManipulation(_, _)
             | Item::MacroLabelDeclaration(_) => {
-                panic!("Item should have been expanded already: {:?}", item);
+                panic!("Item should have been expanded already: {item:?}");
             }
             Item::GlobalLabelDeclaration(label) => {
                 let old = global_labels.insert(label.clone(), *offset);
-                assert!(old.is_none(), "Duplicate global label: {}", label);
+                assert!(old.is_none(), "Duplicate global label: {label}");
             }
             Item::LocalLabelDeclaration(label) => {
                 let old = local_labels.insert(label.clone(), *offset);
-                assert!(old.is_none(), "Duplicate local label: {}", label);
+                assert!(old.is_none(), "Duplicate local label: {label}");
             }
             Item::Push(target) => *offset += 1 + push_target_size(target) as usize,
             Item::ProverInput(prover_input_fn) => {
@@ -319,7 +319,7 @@ fn assemble_file(
             | Item::Repeat(_, _)
             | Item::StackManipulation(_, _)
             | Item::MacroLabelDeclaration(_) => {
-                panic!("Item should have been expanded already: {:?}", item);
+                panic!("Item should have been expanded already: {item:?}");
             }
             Item::GlobalLabelDeclaration(_) | Item::LocalLabelDeclaration(_) => {
                 // Nothing to do; we processed labels in the prior phase.
@@ -331,7 +331,7 @@ fn assemble_file(
                         let offset = local_labels
                             .get(&label)
                             .or_else(|| global_labels.get(&label))
-                            .unwrap_or_else(|| panic!("No such label: {}", label));
+                            .unwrap_or_else(|| panic!("No such label: {label}"));
                         // We want the BYTES_PER_OFFSET least significant bytes in BE order.
                         // It's easiest to rev the first BYTES_PER_OFFSET bytes of the LE encoding.
                         (0..BYTES_PER_OFFSET)
@@ -339,9 +339,9 @@ fn assemble_file(
                             .map(|i| offset.to_le_bytes()[i as usize])
                             .collect()
                     }
-                    PushTarget::MacroLabel(v) => panic!("Macro label not in a macro: {}", v),
-                    PushTarget::MacroVar(v) => panic!("Variable not in a macro: {}", v),
-                    PushTarget::Constant(c) => panic!("Constant wasn't inlined: {}", c),
+                    PushTarget::MacroLabel(v) => panic!("Macro label not in a macro: {v}"),
+                    PushTarget::MacroVar(v) => panic!("Variable not in a macro: {v}"),
+                    PushTarget::Constant(c) => panic!("Constant wasn't inlined: {c}"),
                 };
                 code.push(get_push_opcode(target_bytes.len() as u8));
                 code.extend(target_bytes);
@@ -362,9 +362,9 @@ fn push_target_size(target: &PushTarget) -> u8 {
     match target {
         PushTarget::Literal(n) => u256_to_trimmed_be_bytes(n).len() as u8,
         PushTarget::Label(_) => BYTES_PER_OFFSET,
-        PushTarget::MacroLabel(v) => panic!("Macro label not in a macro: {}", v),
-        PushTarget::MacroVar(v) => panic!("Variable not in a macro: {}", v),
-        PushTarget::Constant(c) => panic!("Constant wasn't inlined: {}", c),
+        PushTarget::MacroLabel(v) => panic!("Macro label not in a macro: {v}"),
+        PushTarget::MacroVar(v) => panic!("Variable not in a macro: {v}"),
+        PushTarget::Constant(c) => panic!("Constant wasn't inlined: {c}"),
     }
 }
 
diff --git a/evm/src/cpu/kernel/cost_estimator.rs b/evm/src/cpu/kernel/cost_estimator.rs
index 3dfcf63a..ae837647 100644
--- a/evm/src/cpu/kernel/cost_estimator.rs
+++ b/evm/src/cpu/kernel/cost_estimator.rs
@@ -21,7 +21,7 @@ fn cost_estimate_item(item: &Item) -> u32 {
         Push(Label(_)) => cost_estimate_push(BYTES_PER_OFFSET as usize),
         ProverInput(_) => 1,
         StandardOp(op) => cost_estimate_standard_op(op.as_str()),
-        _ => panic!("Unexpected item: {:?}", item),
+        _ => panic!("Unexpected item: {item:?}"),
     }
 }
 
diff --git a/evm/src/cpu/kernel/interpreter.rs b/evm/src/cpu/kernel/interpreter.rs
index f6cae73e..8057792b 100644
--- a/evm/src/cpu/kernel/interpreter.rs
+++ b/evm/src/cpu/kernel/interpreter.rs
@@ -328,7 +328,7 @@ impl<'a> Interpreter<'a> {
         if self.debug_offsets.contains(&self.offset) {
             println!("At {}, stack={:?}", self.offset_name(), self.stack());
         } else if let Some(label) = self.offset_label() {
-            println!("At {}", label);
+            println!("At {label}");
         }
 
         Ok(())
diff --git a/evm/src/cpu/kernel/opcodes.rs b/evm/src/cpu/kernel/opcodes.rs
index 20601267..31074ff6 100644
--- a/evm/src/cpu/kernel/opcodes.rs
+++ b/evm/src/cpu/kernel/opcodes.rs
@@ -134,6 +134,6 @@ pub(crate) fn get_opcode(mnemonic: &str) -> u8 {
         "REVERT" => 0xfd,
         "INVALID" => 0xfe,
         "SELFDESTRUCT" => 0xff,
-        _ => panic!("Unrecognized mnemonic {}", mnemonic),
+        _ => panic!("Unrecognized mnemonic {mnemonic}"),
     }
 }
diff --git a/evm/src/cpu/kernel/stack/stack_manipulation.rs b/evm/src/cpu/kernel/stack/stack_manipulation.rs
index 36e4b83a..73a24029 100644
--- a/evm/src/cpu/kernel/stack/stack_manipulation.rs
+++ b/evm/src/cpu/kernel/stack/stack_manipulation.rs
@@ -35,7 +35,7 @@ fn expand(names: Vec<StackPlaceholder>, replacements: Vec<StackReplacement>) ->
             stack_blocks.insert(name.clone(), n);
             (0..n)
                 .map(|i| {
-                    let literal_name = format!("@{}.{}", name, i);
+                    let literal_name = format!("@{name}.{i}");
                     StackItem::NamedItem(literal_name)
                 })
                 .collect_vec()
@@ -52,7 +52,7 @@ fn expand(names: Vec<StackPlaceholder>, replacements: Vec<StackReplacement>) ->
                     let n = *stack_blocks.get(&name).unwrap();
                     (0..n)
                         .map(|i| {
-                            let literal_name = format!("@{}.{}", name, i);
+                            let literal_name = format!("@{name}.{i}");
                             StackItem::NamedItem(literal_name)
                         })
                         .collect_vec()
@@ -64,7 +64,7 @@ fn expand(names: Vec<StackPlaceholder>, replacements: Vec<StackReplacement>) ->
             StackReplacement::MacroLabel(_)
             | StackReplacement::MacroVar(_)
             | StackReplacement::Constant(_) => {
-                panic!("Should have been expanded already: {:?}", item)
+                panic!("Should have been expanded already: {item:?}")
             }
         })
         .collect_vec();
@@ -157,7 +157,7 @@ fn shortest_path(
         }
     }
 
-    panic!("No path found from {:?} to {:?}", src, dst)
+    panic!("No path found from {src:?} to {dst:?}")
 }
 
 /// A node in the priority queue used by Dijkstra's algorithm.
@@ -279,7 +279,7 @@ impl StackOp {
                     PushTarget::MacroLabel(_)
                     | PushTarget::MacroVar(_)
                     | PushTarget::Constant(_) => {
-                        panic!("Target should have been expanded already: {:?}", target)
+                        panic!("Target should have been expanded already: {target:?}")
                     }
                 };
                 // This is just a rough estimate; we can update it after implementing PUSH.
@@ -326,8 +326,8 @@ impl StackOp {
         match self {
             StackOp::Push(target) => Item::Push(target),
             Pop => Item::StandardOp("POP".into()),
-            StackOp::Dup(n) => Item::StandardOp(format!("DUP{}", n)),
-            StackOp::Swap(n) => Item::StandardOp(format!("SWAP{}", n)),
+            StackOp::Dup(n) => Item::StandardOp(format!("DUP{n}")),
+            StackOp::Swap(n) => Item::StandardOp(format!("SWAP{n}")),
         }
     }
 }
diff --git a/evm/src/cpu/kernel/tests/curve_ops.rs b/evm/src/cpu/kernel/tests/curve_ops.rs
index 0aaa94ea..9ba24185 100644
--- a/evm/src/cpu/kernel/tests/curve_ops.rs
+++ b/evm/src/cpu/kernel/tests/curve_ops.rs
@@ -150,7 +150,7 @@ mod bn {
         assert_eq!(stack, vec![U256::MAX, U256::MAX]);
 
         // Multiple calls
-        let ec_mul_hex = format!("0x{:x}", ec_mul);
+        let ec_mul_hex = format!("0x{ec_mul:x}");
         let initial_stack = u256ify([
             "0xdeadbeef",
             s,
@@ -288,7 +288,7 @@ mod secp {
         assert_eq!(stack, u256ify([identity.1, identity.0])?);
 
         // Multiple calls
-        let ec_mul_hex = format!("0x{:x}", ec_mul);
+        let ec_mul_hex = format!("0x{ec_mul:x}");
         let initial_stack = u256ify([
             "0xdeadbeef",
             s,
diff --git a/field/src/extension/algebra.rs b/field/src/extension/algebra.rs
index 54bea694..5840ae81 100644
--- a/field/src/extension/algebra.rs
+++ b/field/src/extension/algebra.rs
@@ -45,7 +45,7 @@ impl<F: OEF<D>, const D: usize> Display for ExtensionAlgebra<F, D> {
     fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
         write!(f, "({})", self.0[0])?;
         for i in 1..D {
-            write!(f, " + ({})*b^{}", self.0[i], i)?;
+            write!(f, " + ({})*b^{i}", self.0[i])?;
         }
         Ok(())
     }
diff --git a/insertion/src/insertion_gate.rs b/insertion/src/insertion_gate.rs
index ea8f4194..2757dd23 100644
--- a/insertion/src/insertion_gate.rs
+++ b/insertion/src/insertion_gate.rs
@@ -73,7 +73,7 @@ impl<F: RichField + Extendable<D>, const D: usize> InsertionGate<F, D> {
 
 impl<F: RichField + Extendable<D>, const D: usize> Gate<F, D> for InsertionGate<F, D> {
     fn id(&self) -> String {
-        format!("{:?}<D={}>", self, D)
+        format!("{self:?}<D={D}>")
     }
 
     fn eval_unfiltered(&self, vars: EvaluationVars<F, D>) -> Vec<F::Extension> {
diff --git a/plonky2/benches/hashing.rs b/plonky2/benches/hashing.rs
index 4632c4c4..673e0572 100644
--- a/plonky2/benches/hashing.rs
+++ b/plonky2/benches/hashing.rs
@@ -24,7 +24,7 @@ pub(crate) fn bench_keccak<F: RichField>(c: &mut Criterion) {
 
 pub(crate) fn bench_poseidon<F: Poseidon>(c: &mut Criterion) {
     c.bench_function(
-        &format!("poseidon<{}, {}>", type_name::<F>(), SPONGE_WIDTH),
+        &format!("poseidon<{}, {SPONGE_WIDTH}>", type_name::<F>()),
         |b| {
             b.iter_batched(
                 || F::rand_arr::<SPONGE_WIDTH>(),
diff --git a/plonky2/examples/square_root.rs b/plonky2/examples/square_root.rs
index 0bc89f47..7d4d2fee 100644
--- a/plonky2/examples/square_root.rs
+++ b/plonky2/examples/square_root.rs
@@ -31,7 +31,7 @@ impl<F: RichField + Extendable<D>, const D: usize> SimpleGenerator<F>
         let x_squared = witness.get_target(self.x_squared);
         let x = x_squared.sqrt().unwrap();
 
-        println!("Square root: {}", x);
+        println!("Square root: {x}");
 
         out_buffer.set_target(self.x, x);
     }
@@ -75,7 +75,7 @@ fn main() -> Result<()> {
     let proof = data.prove(pw.clone())?;
 
     let x_squared_actual = proof.public_inputs[0];
-    println!("Field element (square): {}", x_squared_actual);
+    println!("Field element (square): {x_squared_actual}");
 
     data.verify(proof)
 }
diff --git a/plonky2/src/bin/generate_constants.rs b/plonky2/src/bin/generate_constants.rs
index 258c6b78..c5f8fae2 100644
--- a/plonky2/src/bin/generate_constants.rs
+++ b/plonky2/src/bin/generate_constants.rs
@@ -21,7 +21,7 @@ pub(crate) fn main() {
     // Print the constants in the format we prefer in our code.
     for chunk in constants.chunks(4) {
         for (i, c) in chunk.iter().enumerate() {
-            print!("{:#018x},", c);
+            print!("{c:#018x},");
             if i != chunk.len() - 1 {
                 print!(" ");
             }
diff --git a/plonky2/src/fri/recursive_verifier.rs b/plonky2/src/fri/recursive_verifier.rs
index ac7e3a87..d14420c1 100644
--- a/plonky2/src/fri/recursive_verifier.rs
+++ b/plonky2/src/fri/recursive_verifier.rs
@@ -176,7 +176,7 @@ impl<F: RichField + Extendable<D>, const D: usize> CircuitBuilder<F, D> {
             with_context!(
                 self,
                 level,
-                &format!("verify one (of {}) query rounds", num_queries),
+                &format!("verify one (of {num_queries}) query rounds"),
                 self.fri_verifier_query_round::<C>(
                     instance,
                     challenges,
@@ -207,7 +207,7 @@ impl<F: RichField + Extendable<D>, const D: usize> CircuitBuilder<F, D> {
         {
             with_context!(
                 self,
-                &format!("verify {}'th initial Merkle proof", i),
+                &format!("verify {i}'th initial Merkle proof"),
                 self.verify_merkle_proof_to_cap_with_cap_index::<H>(
                     evals.clone(),
                     x_index_bits,
diff --git a/plonky2/src/gates/arithmetic_base.rs b/plonky2/src/gates/arithmetic_base.rs
index 207af2d0..03560faf 100644
--- a/plonky2/src/gates/arithmetic_base.rs
+++ b/plonky2/src/gates/arithmetic_base.rs
@@ -53,7 +53,7 @@ impl ArithmeticGate {
 
 impl<F: RichField + Extendable<D>, const D: usize> Gate<F, D> for ArithmeticGate {
     fn id(&self) -> String {
-        format!("{:?}", self)
+        format!("{self:?}")
     }
 
     fn eval_unfiltered(&self, vars: EvaluationVars<F, D>) -> Vec<F::Extension> {
diff --git a/plonky2/src/gates/arithmetic_extension.rs b/plonky2/src/gates/arithmetic_extension.rs
index e4e07f83..26b7074b 100644
--- a/plonky2/src/gates/arithmetic_extension.rs
+++ b/plonky2/src/gates/arithmetic_extension.rs
@@ -51,7 +51,7 @@ impl<const D: usize> ArithmeticExtensionGate<D> {
 
 impl<F: RichField + Extendable<D>, const D: usize> Gate<F, D> for ArithmeticExtensionGate<D> {
     fn id(&self) -> String {
-        format!("{:?}", self)
+        format!("{self:?}")
     }
 
     fn eval_unfiltered(&self, vars: EvaluationVars<F, D>) -> Vec<F::Extension> {
diff --git a/plonky2/src/gates/base_sum.rs b/plonky2/src/gates/base_sum.rs
index 5be54eeb..1252c8e3 100644
--- a/plonky2/src/gates/base_sum.rs
+++ b/plonky2/src/gates/base_sum.rs
@@ -49,7 +49,7 @@ impl<const B: usize> BaseSumGate<B> {
 
 impl<F: RichField + Extendable<D>, const D: usize, const B: usize> Gate<F, D> for BaseSumGate<B> {
     fn id(&self) -> String {
-        format!("{:?} + Base: {}", self, B)
+        format!("{self:?} + Base: {B}")
     }
 
     fn eval_unfiltered(&self, vars: EvaluationVars<F, D>) -> Vec<F::Extension> {
diff --git a/plonky2/src/gates/constant.rs b/plonky2/src/gates/constant.rs
index 7d68b088..513caad9 100644
--- a/plonky2/src/gates/constant.rs
+++ b/plonky2/src/gates/constant.rs
@@ -33,7 +33,7 @@ impl ConstantGate {
 
 impl<F: RichField + Extendable<D>, const D: usize> Gate<F, D> for ConstantGate {
     fn id(&self) -> String {
-        format!("{:?}", self)
+        format!("{self:?}")
     }
 
     fn eval_unfiltered(&self, vars: EvaluationVars<F, D>) -> Vec<F::Extension> {
diff --git a/plonky2/src/gates/exponentiation.rs b/plonky2/src/gates/exponentiation.rs
index aa977308..ca1ba395 100644
--- a/plonky2/src/gates/exponentiation.rs
+++ b/plonky2/src/gates/exponentiation.rs
@@ -70,7 +70,7 @@ impl<F: RichField + Extendable<D>, const D: usize> ExponentiationGate<F, D> {
 
 impl<F: RichField + Extendable<D>, const D: usize> Gate<F, D> for ExponentiationGate<F, D> {
     fn id(&self) -> String {
-        format!("{:?}<D={}>", self, D)
+        format!("{self:?}<D={D}>")
     }
 
     fn eval_unfiltered(&self, vars: EvaluationVars<F, D>) -> Vec<F::Extension> {
diff --git a/plonky2/src/gates/high_degree_interpolation.rs b/plonky2/src/gates/high_degree_interpolation.rs
index bcdf2276..0bc4ab65 100644
--- a/plonky2/src/gates/high_degree_interpolation.rs
+++ b/plonky2/src/gates/high_degree_interpolation.rs
@@ -87,7 +87,7 @@ impl<F: RichField + Extendable<D>, const D: usize> Gate<F, D>
     for HighDegreeInterpolationGate<F, D>
 {
     fn id(&self) -> String {
-        format!("{:?}<D={}>", self, D)
+        format!("{self:?}<D={D}>")
     }
 
     fn eval_unfiltered(&self, vars: EvaluationVars<F, D>) -> Vec<F::Extension> {
diff --git a/plonky2/src/gates/low_degree_interpolation.rs b/plonky2/src/gates/low_degree_interpolation.rs
index 3edc4175..8fd2ed47 100644
--- a/plonky2/src/gates/low_degree_interpolation.rs
+++ b/plonky2/src/gates/low_degree_interpolation.rs
@@ -80,7 +80,7 @@ impl<F: RichField + Extendable<D>, const D: usize> LowDegreeInterpolationGate<F,
 
 impl<F: RichField + Extendable<D>, const D: usize> Gate<F, D> for LowDegreeInterpolationGate<F, D> {
     fn id(&self) -> String {
-        format!("{:?}<D={}>", self, D)
+        format!("{self:?}<D={D}>")
     }
 
     fn eval_unfiltered(&self, vars: EvaluationVars<F, D>) -> Vec<F::Extension> {
diff --git a/plonky2/src/gates/multiplication_extension.rs b/plonky2/src/gates/multiplication_extension.rs
index ab29bba7..8e6b44d7 100644
--- a/plonky2/src/gates/multiplication_extension.rs
+++ b/plonky2/src/gates/multiplication_extension.rs
@@ -48,7 +48,7 @@ impl<const D: usize> MulExtensionGate<D> {
 
 impl<F: RichField + Extendable<D>, const D: usize> Gate<F, D> for MulExtensionGate<D> {
     fn id(&self) -> String {
-        format!("{:?}", self)
+        format!("{self:?}")
     }
 
     fn eval_unfiltered(&self, vars: EvaluationVars<F, D>) -> Vec<F::Extension> {
diff --git a/plonky2/src/gates/poseidon.rs b/plonky2/src/gates/poseidon.rs
index 3ae8db83..26ec2594 100644
--- a/plonky2/src/gates/poseidon.rs
+++ b/plonky2/src/gates/poseidon.rs
@@ -98,7 +98,7 @@ impl<F: RichField + Extendable<D>, const D: usize> PoseidonGate<F, D> {
 
 impl<F: RichField + Extendable<D>, const D: usize> Gate<F, D> for PoseidonGate<F, D> {
     fn id(&self) -> String {
-        format!("{:?}<WIDTH={}>", self, SPONGE_WIDTH)
+        format!("{self:?}<WIDTH={SPONGE_WIDTH}>")
     }
 
     fn eval_unfiltered(&self, vars: EvaluationVars<F, D>) -> Vec<F::Extension> {
diff --git a/plonky2/src/gates/poseidon_mds.rs b/plonky2/src/gates/poseidon_mds.rs
index 2ccfa640..289246e1 100644
--- a/plonky2/src/gates/poseidon_mds.rs
+++ b/plonky2/src/gates/poseidon_mds.rs
@@ -117,7 +117,7 @@ impl<F: RichField + Extendable<D> + Poseidon, const D: usize> PoseidonMdsGate<F,
 
 impl<F: RichField + Extendable<D> + Poseidon, const D: usize> Gate<F, D> for PoseidonMdsGate<F, D> {
     fn id(&self) -> String {
-        format!("{:?}<WIDTH={}>", self, SPONGE_WIDTH)
+        format!("{self:?}<WIDTH={SPONGE_WIDTH}>")
     }
 
     fn eval_unfiltered(&self, vars: EvaluationVars<F, D>) -> Vec<F::Extension> {
diff --git a/plonky2/src/gates/random_access.rs b/plonky2/src/gates/random_access.rs
index fa365f16..3ea2f55e 100644
--- a/plonky2/src/gates/random_access.rs
+++ b/plonky2/src/gates/random_access.rs
@@ -115,7 +115,7 @@ impl<F: RichField + Extendable<D>, const D: usize> RandomAccessGate<F, D> {
 
 impl<F: RichField + Extendable<D>, const D: usize> Gate<F, D> for RandomAccessGate<F, D> {
     fn id(&self) -> String {
-        format!("{:?}<D={}>", self, D)
+        format!("{self:?}<D={D}>")
     }
 
     fn eval_unfiltered(&self, vars: EvaluationVars<F, D>) -> Vec<F::Extension> {
diff --git a/plonky2/src/gates/reducing.rs b/plonky2/src/gates/reducing.rs
index 31960b64..02f8ac2d 100644
--- a/plonky2/src/gates/reducing.rs
+++ b/plonky2/src/gates/reducing.rs
@@ -55,7 +55,7 @@ impl<const D: usize> ReducingGate<D> {
 
 impl<F: RichField + Extendable<D>, const D: usize> Gate<F, D> for ReducingGate<D> {
     fn id(&self) -> String {
-        format!("{:?}", self)
+        format!("{self:?}")
     }
 
     fn eval_unfiltered(&self, vars: EvaluationVars<F, D>) -> Vec<F::Extension> {
diff --git a/plonky2/src/gates/reducing_extension.rs b/plonky2/src/gates/reducing_extension.rs
index 2ae25059..8b04ec99 100644
--- a/plonky2/src/gates/reducing_extension.rs
+++ b/plonky2/src/gates/reducing_extension.rs
@@ -58,7 +58,7 @@ impl<const D: usize> ReducingExtensionGate<D> {
 
 impl<F: RichField + Extendable<D>, const D: usize> Gate<F, D> for ReducingExtensionGate<D> {
     fn id(&self) -> String {
-        format!("{:?}", self)
+        format!("{self:?}")
     }
 
     fn eval_unfiltered(&self, vars: EvaluationVars<F, D>) -> Vec<F::Extension> {
diff --git a/u32/src/gates/add_many_u32.rs b/u32/src/gates/add_many_u32.rs
index 622c3df3..f37075cd 100644
--- a/u32/src/gates/add_many_u32.rs
+++ b/u32/src/gates/add_many_u32.rs
@@ -84,7 +84,7 @@ impl<F: RichField + Extendable<D>, const D: usize> U32AddManyGate<F, D> {
 
 impl<F: RichField + Extendable<D>, const D: usize> Gate<F, D> for U32AddManyGate<F, D> {
     fn id(&self) -> String {
-        format!("{:?}", self)
+        format!("{self:?}")
     }
 
     fn eval_unfiltered(&self, vars: EvaluationVars<F, D>) -> Vec<F::Extension> {
diff --git a/u32/src/gates/arithmetic_u32.rs b/u32/src/gates/arithmetic_u32.rs
index c05ed86c..47889954 100644
--- a/u32/src/gates/arithmetic_u32.rs
+++ b/u32/src/gates/arithmetic_u32.rs
@@ -86,7 +86,7 @@ impl<F: RichField + Extendable<D>, const D: usize> U32ArithmeticGate<F, D> {
 
 impl<F: RichField + Extendable<D>, const D: usize> Gate<F, D> for U32ArithmeticGate<F, D> {
     fn id(&self) -> String {
-        format!("{:?}", self)
+        format!("{self:?}")
     }
 
     fn eval_unfiltered(&self, vars: EvaluationVars<F, D>) -> Vec<F::Extension> {
diff --git a/u32/src/gates/comparison.rs b/u32/src/gates/comparison.rs
index 6af34208..a2a0cfcf 100644
--- a/u32/src/gates/comparison.rs
+++ b/u32/src/gates/comparison.rs
@@ -91,7 +91,7 @@ impl<F: RichField + Extendable<D>, const D: usize> ComparisonGate<F, D> {
 
 impl<F: RichField + Extendable<D>, const D: usize> Gate<F, D> for ComparisonGate<F, D> {
     fn id(&self) -> String {
-        format!("{:?}<D={}>", self, D)
+        format!("{self:?}<D={D}>")
     }
 
     fn eval_unfiltered(&self, vars: EvaluationVars<F, D>) -> Vec<F::Extension> {
diff --git a/u32/src/gates/range_check_u32.rs b/u32/src/gates/range_check_u32.rs
index 615abb98..6e8f2cd5 100644
--- a/u32/src/gates/range_check_u32.rs
+++ b/u32/src/gates/range_check_u32.rs
@@ -48,7 +48,7 @@ impl<F: RichField + Extendable<D>, const D: usize> U32RangeCheckGate<F, D> {
 
 impl<F: RichField + Extendable<D>, const D: usize> Gate<F, D> for U32RangeCheckGate<F, D> {
     fn id(&self) -> String {
-        format!("{:?}", self)
+        format!("{self:?}")
     }
 
     fn eval_unfiltered(&self, vars: EvaluationVars<F, D>) -> Vec<F::Extension> {
diff --git a/u32/src/gates/subtraction_u32.rs b/u32/src/gates/subtraction_u32.rs
index 3737de55..b08d900b 100644
--- a/u32/src/gates/subtraction_u32.rs
+++ b/u32/src/gates/subtraction_u32.rs
@@ -80,7 +80,7 @@ impl<F: RichField + Extendable<D>, const D: usize> U32SubtractionGate<F, D> {
 
 impl<F: RichField + Extendable<D>, const D: usize> Gate<F, D> for U32SubtractionGate<F, D> {
     fn id(&self) -> String {
-        format!("{:?}", self)
+        format!("{self:?}")
     }
 
     fn eval_unfiltered(&self, vars: EvaluationVars<F, D>) -> Vec<F::Extension> {
diff --git a/util/src/lib.rs b/util/src/lib.rs
index bbc2af98..b22a4236 100644
--- a/util/src/lib.rs
+++ b/util/src/lib.rs
@@ -31,7 +31,7 @@ pub fn log2_ceil(n: usize) -> usize {
 /// Computes `log_2(n)`, panicking if `n` is not a power of two.
 pub fn log2_strict(n: usize) -> usize {
     let res = n.trailing_zeros();
-    assert!(n.wrapping_shr(res) == 1, "Not a power of two: {}", n);
+    assert!(n.wrapping_shr(res) == 1, "Not a power of two: {n}");
     // Tell the optimizer about the semantics of `log2_strict`. i.e. it can replace `n` with
     // `1 << res` and vice versa.
     assume(n == 1 << res);
diff --git a/waksman/src/gates/assert_le.rs b/waksman/src/gates/assert_le.rs
index c67a7125..27242370 100644
--- a/waksman/src/gates/assert_le.rs
+++ b/waksman/src/gates/assert_le.rs
@@ -84,7 +84,7 @@ impl<F: RichField + Extendable<D>, const D: usize> AssertLessThanGate<F, D> {
 
 impl<F: RichField + Extendable<D>, const D: usize> Gate<F, D> for AssertLessThanGate<F, D> {
     fn id(&self) -> String {
-        format!("{:?}<D={}>", self, D)
+        format!("{self:?}<D={D}>")
     }
 
     fn eval_unfiltered(&self, vars: EvaluationVars<F, D>) -> Vec<F::Extension> {
diff --git a/waksman/src/gates/switch.rs b/waksman/src/gates/switch.rs
index 2c2ca8c8..4509bf0a 100644
--- a/waksman/src/gates/switch.rs
+++ b/waksman/src/gates/switch.rs
@@ -74,7 +74,7 @@ impl<F: RichField + Extendable<D>, const D: usize> SwitchGate<F, D> {
 
 impl<F: RichField + Extendable<D>, const D: usize> Gate<F, D> for SwitchGate<F, D> {
     fn id(&self) -> String {
-        format!("{:?}<D={}>", self, D)
+        format!("{self:?}<D={D}>")
     }
 
     fn eval_unfiltered(&self, vars: EvaluationVars<F, D>) -> Vec<F::Extension> {