fix(service): Use display impl for logging values

Author: neithanmo

crates/service/src/middleware/attestation.rs

@@ -98,7 +98,7 @@ impl StatusCodeExt for AttestationError {
 
 impl IntoResponse for AttestationError {
     fn into_response(self) -> Response {
-        tracing::error!(error=self, "Attestation error");
+        tracing::error!(error=%self, "Attestation error");
         let status_code = self.status_code();
         ErrorResponse::new(self).into_response(status_code)
     }

crates/service/src/middleware/attestation_signer.rs

@@ -32,8 +32,7 @@ pub async fn signer_middleware(
             request.extensions_mut().insert(signer.clone());
         } else {
             // Just log this case which is silently passed through next middleware
-            tracing::warn!(
-                allocation_id,
+            tracing::warn!(warn=%allocation_id,
                 "No attestation signer found for allocation",
             );
         }