Make as_any() required method for trait objects

Author: vcjana

aws/rust-runtime/Cargo.lock

@@ -286,6 +286,10 @@ impl ProvideMeter for OtelMeterProvider {
     fn get_meter(&self, scope: &'static str, _attributes: Option<&Attributes>) -> Meter {
         Meter::new(Arc::new(MeterWrap(self.meter_provider.meter(scope))))
     }
+
+    fn as_any(&self) -> &dyn std::any::Any {
+        self
+    }
 }
 
 #[cfg(test)]

rust-runtime/aws-smithy-observability-otel/src/meter.rs

@@ -19,9 +19,7 @@ pub trait ProvideMeter: Send + Sync + Debug {
     fn get_meter(&self, scope: &'static str, attributes: Option<&Attributes>) -> Meter;
 
     /// Returns a reference to `self` as `&dyn Any` for downcasting.
-    fn as_any(&self) -> &dyn std::any::Any {
-        self
-    }
+    fn as_any(&self) -> &dyn std::any::Any;
 }
 
 /// The entry point to creating instruments. A grouping of related metrics.

rust-runtime/aws-smithy-observability/src/meter.rs

@@ -24,6 +24,10 @@ impl ProvideMeter for NoopMeterProvider {
     fn get_meter(&self, _scope: &'static str, _attributes: Option<&Attributes>) -> Meter {
         Meter::new(Arc::new(NoopMeter))
     }
+
+    fn as_any(&self) -> &dyn std::any::Any {
+        self
+    }
 }
 
 #[derive(Debug)]