diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 808989555df..76116a59c34 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -51,9 +51,8 @@ jobs:
           sudo apt update
           python3 ./mach bootstrap
       # TODO: Do GitHub anotaions
-      # TODO: Fail on warnings
       - name: Clippy
         run: |
-          python3 ./mach cargo-clippy --use-crown --locked
+          python3 ./mach cargo-clippy --use-crown --locked -- -- --deny warnings
       - name: Tidy
         run: python3 ./mach test-tidy --no-progress --all
\ No newline at end of file
diff --git a/components/layout_2020/positioned.rs b/components/layout_2020/positioned.rs
index eb7f83de978..90d0a2db5af 100644
--- a/components/layout_2020/positioned.rs
+++ b/components/layout_2020/positioned.rs
@@ -867,7 +867,7 @@ impl<'a> AbsoluteAxisSolver<'a> {
         // Override sizes
         let old_size = mem::replace(&mut self.computed_size, AuOrAuto::LengthPercentage(size));
         let old_min_size = mem::replace(&mut self.computed_min_size, Au::zero());
-        let old_max_size = mem::replace(&mut self.computed_max_size, None);
+        let old_max_size = self.computed_max_size.take();
 
         let result = self.solve_tentatively();