diff --git a/egui/benches/benchmark.rs b/egui/benches/benchmark.rs
index 7213be20..782b6aec 100644
--- a/egui/benches/benchmark.rs
+++ b/egui/benches/benchmark.rs
@@ -35,7 +35,7 @@ pub fn criterion_benchmark(c: &mut Criterion) {
 
     {
         let mut ctx = egui::Context::new();
-        let mut ui = ctx.begin_frame(raw_input.clone());
+        let mut ui = ctx.begin_frame(raw_input);
         c.bench_function("label", |b| {
             b.iter(|| {
                 ui.label(egui::demos::LOREM_IPSUM_LONG);
diff --git a/egui/src/lib.rs b/egui/src/lib.rs
index e5e09541..690bea17 100644
--- a/egui/src/lib.rs
+++ b/egui/src/lib.rs
@@ -20,7 +20,7 @@
 //! }
 //! ```
 
-#![deny(warnings)]
+#![cfg_attr(not(debug_assertions), deny(warnings))] // Forbid warnings in release builds
 #![warn(
     clippy::all,
     clippy::dbg_macro,
@@ -36,12 +36,10 @@
     clippy::needless_continue,
     clippy::pub_enum_variant_names,
     clippy::rest_pat_in_fully_bound_structs,
-    // clippy::suboptimal_flops, // TODO
     clippy::todo,
-    // clippy::use_self,
     future_incompatible,
     nonstandard_style,
-    rust_2018_idioms,
+    rust_2018_idioms
 )]
 
 pub mod align;
diff --git a/egui/src/math/mod.rs b/egui/src/math/mod.rs
index d7018716..7cd2e369 100644
--- a/egui/src/math/mod.rs
+++ b/egui/src/math/mod.rs
@@ -159,6 +159,7 @@ pub fn almost_equal(a: f32, b: f32, epsilon: f32) -> bool {
     }
 }
 
+#[allow(clippy::approx_constant)]
 #[test]
 fn test_format() {
     assert_eq!(format_with_minimum_precision(1_234_567.0, 0), "1234567");
@@ -204,6 +205,7 @@ fn test_almost_equal() {
     }
 }
 
+#[allow(clippy::float_cmp)]
 #[test]
 fn test_remap() {
     assert_eq!(remap_clamp(1.0, 0.0..=1.0, 0.0..=16.0), 16.0);
diff --git a/egui/src/math/smart_aim.rs b/egui/src/math/smart_aim.rs
index c5cd90f1..b6770739 100644
--- a/egui/src/math/smart_aim.rs
+++ b/egui/src/math/smart_aim.rs
@@ -112,6 +112,7 @@ fn simplest_digit_closed_range(min: i32, max: i32) -> i32 {
     }
 }
 
+#[allow(clippy::approx_constant)]
 #[test]
 fn test_aim() {
     assert_eq!(best_in_range_f64(-0.2, 0.0), 0.0, "Prefer zero");