diff --git a/compiler/src/passes/conclude/conclude.rs b/compiler/src/passes/conclude/conclude.rs
index 4b669f2..525af52 100644
--- a/compiler/src/passes/conclude/conclude.rs
+++ b/compiler/src/passes/conclude/conclude.rs
@@ -27,7 +27,7 @@ impl<'p> X86Patched<'p> {
                     for instr in &mut block.instrs {
                         match instr {
                             Instr::CallDirect { lbl, .. } | Instr::LoadLbl { lbl, .. } => {
-                                *lbl = entries[&lbl];
+                                *lbl = entries[lbl];
                             }
                             _ => {}
                         }
@@ -70,14 +70,6 @@ fn fix_stack_space(block: &mut Block<Arg>, stack_space: usize) {
                 assert_eq!(*val, 0x1000);
                 *val = stack_space as i32;
             }
-            InstrAssigned::Add {
-                src: Arg::Imm(_), ..
-            }
-            | InstrAssigned::Sub {
-                src: Arg::Imm(_), ..
-            } => {
-                todo!()
-            }
             _ => {}
         }
     }
diff --git a/compiler/src/passes/eliminate/eliminate_params.rs b/compiler/src/passes/eliminate/eliminate_params.rs
index c33e121..b4605ae 100644
--- a/compiler/src/passes/eliminate/eliminate_params.rs
+++ b/compiler/src/passes/eliminate/eliminate_params.rs
@@ -35,7 +35,7 @@ pub fn flatten_type<'p>(
         Type::Int { .. } | Type::Bool | Type::Unit | Type::Never | Type::Fn { .. } => {
             vec![(sym, typ.clone())]
         }
-        Type::Var { sym: def_sym } => match &defs[&def_sym] {
+        Type::Var { sym: def_sym } => match &defs[def_sym] {
             TypeDef::Struct { fields } => fields
                 .iter()
                 .flat_map(|(field_name, field_type)| {
diff --git a/compiler/src/passes/select/select.rs b/compiler/src/passes/select/select.rs
index 1b95c0f..fdc17d7 100644
--- a/compiler/src/passes/select/select.rs
+++ b/compiler/src/passes/select/select.rs
@@ -91,7 +91,7 @@ fn entry_block<'p>(
 
 /// Creates an exit block for the function.
 fn exit_block<'p>(
-    fun: &FunEliminated<'p>,
+    _fun: &FunEliminated<'p>,
     blocks: &mut HashMap<UniqueSym<'p>, Block<'p, VarArg<UniqueSym<'p>>>>,
 ) -> UniqueSym<'p> {
     let exit = gen_sym("exit");
@@ -166,10 +166,6 @@ fn select_assign<'p>(
     let dst = var!(dsts[0]);
     match expr.inner {
         ExprEliminated::Atom { atm, .. } => vec![mov!(select_atom(atm), dst)],
-        ExprEliminated::Atom {
-            atm: Atom::Var { sym },
-            ..
-        } => vec![mov!(var!(sym), dst)],
         ExprEliminated::BinaryOp {
             op,
             exprs: [a0, a1],
diff --git a/compiler/src/passes/validate/resolve.rs b/compiler/src/passes/validate/resolve.rs
index 608e7cf..c7f738d 100644
--- a/compiler/src/passes/validate/resolve.rs
+++ b/compiler/src/passes/validate/resolve.rs
@@ -1,4 +1,4 @@
-use crate::passes::parse::types::{IntType, Type};
+use crate::passes::parse::types::Type;
 use crate::passes::parse::{Constrained, Expr, Lit, Meta, Param, Span, Spanned, TypeDef, Typed};
 use crate::passes::select::{Instr, InstrSelected, VarArg};
 use crate::passes::validate::error::TypeError;
@@ -9,7 +9,6 @@ use crate::passes::validate::{
 };
 use crate::utils::union_find::{UnionFind, UnionIndex};
 use crate::utils::unique_sym::UniqueSym;
-use crate::*;
 use functor_derive::Functor;
 use std::num::ParseIntError;
 
diff --git a/compiler/src/passes/validate/uniquify/expr.rs b/compiler/src/passes/validate/uniquify/expr.rs
index b350501..065462e 100644
--- a/compiler/src/passes/validate/uniquify/expr.rs
+++ b/compiler/src/passes/validate/uniquify/expr.rs
@@ -6,7 +6,6 @@ use crate::passes::validate::uniquify::{gen_spanned_sym, try_get};
 use crate::passes::validate::{uniquify, ExprUniquified, InstrUniquified};
 use crate::utils::push_map::PushMap;
 use crate::utils::unique_sym::UniqueSym;
-use crate::*;
 
 pub fn uniquify_expr<'p>(
     expr: Spanned<ExprParsed<'p>>,
diff --git a/compiler/tests/aoc.rs b/compiler/tests/aoc.rs
index bd0d490..0798b44 100644
--- a/compiler/tests/aoc.rs
+++ b/compiler/tests/aoc.rs
@@ -39,9 +39,8 @@ fn aoc([program_path, output_path]: [&Path; 2]) {
 
     // Wait for output to be executable.
     let child = loop {
-        match create_child() {
-            Ok(child) => break child,
-            _ => {}
+        if let Ok(child) = create_child() {
+            break child;
         }
     };
 
diff --git a/compiler/tests/integration.rs b/compiler/tests/integration.rs
index 40a2cf8..8444b51 100644
--- a/compiler/tests/integration.rs
+++ b/compiler/tests/integration.rs
@@ -32,9 +32,8 @@ fn integration([test]: [&str; 1]) {
 
     // Wait for output to be executable.
     let mut child = loop {
-        match create_child() {
-            Ok(child) => break child,
-            _ => {}
+        if let Ok(child) = create_child() {
+            break child;
         }
     };