diff --git a/cli/src/repl.rs b/cli/src/repl.rs
index 276aaa5d41..82c184a061 100644
--- a/cli/src/repl.rs
+++ b/cli/src/repl.rs
@@ -263,7 +263,7 @@ fn gen(src: &[u8], target: Triple, opt_level: OptLevel) -> Result<ReplOutput, Fa
         let builder = context.create_builder();
 
         debug_assert_eq!(exposed_to_host.len(), 1);
-        let (main_fn_symbol, main_fn_var) = exposed_to_host.iter().nth(0).unwrap();
+        let (main_fn_symbol, main_fn_var) = exposed_to_host.iter().next().unwrap();
         let main_fn_symbol = *main_fn_symbol;
         let main_fn_var = *main_fn_var;
 
diff --git a/compiler/gen/src/llvm/build.rs b/compiler/gen/src/llvm/build.rs
index c407d60ec3..4a5a8b0a64 100644
--- a/compiler/gen/src/llvm/build.rs
+++ b/compiler/gen/src/llvm/build.rs
@@ -1161,11 +1161,9 @@ pub fn build_exp_expr<'a, 'ctx, 'env>(
             match scope.top_level_thunks.get(symbol) {
                 Some((_layout, function_value)) => {
                     // this is a 0-argument thunk, evaluate it!
-                    let call = env.builder.build_call(
-                        function_value.clone(),
-                        &[],
-                        "evaluate_top_level_thunk",
-                    );
+                    let call =
+                        env.builder
+                            .build_call(*function_value, &[], "evaluate_top_level_thunk");
 
                     call.try_as_basic_value().left().unwrap()
                 }
diff --git a/compiler/types/src/solved_types.rs b/compiler/types/src/solved_types.rs
index 7b4bf4976d..81f13895a1 100644
--- a/compiler/types/src/solved_types.rs
+++ b/compiler/types/src/solved_types.rs
@@ -202,7 +202,6 @@ impl SolvedType {
     }
 
     pub fn from_var(subs: &Subs, var: Variable) -> Self {
-        // seen: MutSet<Variable>,
         let mut seen = RecursionVars::default();
         Self::from_var_help(subs, &mut seen, var)
     }