diff --git a/compiler/mono/src/expr.rs b/compiler/mono/src/expr.rs
index 2fb5e9eaf1..0e937046d7 100644
--- a/compiler/mono/src/expr.rs
+++ b/compiler/mono/src/expr.rs
@@ -37,7 +37,7 @@ pub struct Proc<'a> {
 }
 
 impl<'a> Proc<'a> {
-    pub fn to_doc<'b, D, A>(&'b self, alloc: &'b D, parens: bool) -> DocBuilder<'b, D, A>
+    pub fn to_doc<'b, D, A>(&'b self, alloc: &'b D, _parens: bool) -> DocBuilder<'b, D, A>
     where
         D: DocAllocator<'b, A>,
         D::Doc: Clone,
@@ -835,10 +835,7 @@ fn from_can<'a>(
         }
         LetRec(defs, ret_expr, _, _) => from_can_defs(env, defs, *ret_expr, layout_cache, procs),
         LetNonRec(def, ret_expr, _, _) => {
-            let symbols = roc_can::pattern::symbols_from_pattern(&def.loc_pattern.value);
-            let mut result = from_can_defs(env, vec![*def], *ret_expr, layout_cache, procs);
-
-            result
+            from_can_defs(env, vec![*def], *ret_expr, layout_cache, procs)
         }
 
         Closure(ann, name, _, loc_args, boxed_body) => {
diff --git a/compiler/mono/src/reset_reuse.rs b/compiler/mono/src/reset_reuse.rs
index 54a2c11fec..c5eb356916 100644
--- a/compiler/mono/src/reset_reuse.rs
+++ b/compiler/mono/src/reset_reuse.rs
@@ -1,15 +1,10 @@
 use crate::expr::Env;
 use crate::expr::Expr;
 
-use crate::layout::{Builtin, Layout};
 use bumpalo::collections::Vec;
-use bumpalo::Bump;
-use roc_collections::all::{MutMap, MutSet};
-use roc_module::ident::{Ident, Lowercase, TagName};
-use roc_module::symbol::{IdentIds, ModuleId, Symbol};
-use roc_region::all::{Located, Region};
+use roc_collections::all::MutSet;
+use roc_module::symbol::Symbol;
 
-use Expr::*;
 /*
 R : FnBodypure → FnBodyRC
 R(let x = e; F ) = let x = e; R(F )