Warning fixes

src/geometry/contact_pair.rs

@@ -347,8 +347,11 @@ impl ContactManifoldData {
     }
 }
 
+/// Additional methods for the contact manifold.
 pub trait ContactManifoldExt {
+    /// Computes the sum of all the impulses applied by contacts from this contact manifold.
     fn total_impulse(&self) -> Real;
+    /// Computes the maximum impulse applied by contacts from this contact manifold.
     fn max_impulse(&self) -> Real;
 }
 

src/pipeline/physics_pipeline.rs

@@ -14,7 +14,7 @@ use crate::geometry::{
     ContactManifoldIndex, NarrowPhase, TemporaryInteractionIndex,
 };
 use crate::math::{Real, Vector};
-use crate::pipeline::{ActiveEvents, EventHandler, PhysicsHooks};
+use crate::pipeline::{EventHandler, PhysicsHooks};
 use {crate::dynamics::RigidBodySet, crate::geometry::ColliderSet};
 
 /// The physics pipeline, responsible for stepping the whole physics simulation.