diff --git a/.doc_gen/metadata/auto-scaling_metadata.yaml b/.doc_gen/metadata/auto-scaling_metadata.yaml
index b455e786cfb..f3e443bd3f1 100644
--- a/.doc_gen/metadata/auto-scaling_metadata.yaml
+++ b/.doc_gen/metadata/auto-scaling_metadata.yaml
@@ -42,7 +42,7 @@ auto-scaling_Hello:
               snippet_tags:
                 - cpp.example_code.autoscaling.hello_autoscaling
   services:
-    auto-scaling: { DescribeAutoScalingGroups }
+    auto-scaling: {DescribeAutoScalingGroups}
 auto-scaling_CreateAutoScalingGroup:
   title: Create an &AS; group using an &AWS; SDK
   title_abbrev: Create a group
@@ -110,7 +110,7 @@ auto-scaling_CreateAutoScalingGroup:
                 - cpp.example_code.autoscaling.create_autoscaling_group1
                 - cpp.example_code.autoscaling.create_autoscaling_group2
   services:
-    auto-scaling: { CreateAutoScalingGroup }
+    auto-scaling: {CreateAutoScalingGroup}
 auto-scaling_DeleteAutoScalingGroup:
   title: Delete an &AS; group using an &AWS; SDK
   title_abbrev: Delete a group
@@ -177,7 +177,7 @@ auto-scaling_DeleteAutoScalingGroup:
                 - cpp.example_code.autoscaling.autoscaling_client
                 - cpp.example_code.autoscaling.delete_autoscaling_group
   services:
-    auto-scaling: { DeleteAutoScalingGroup }
+    auto-scaling: {DeleteAutoScalingGroup}
 auto-scaling_DescribeAutoScalingGroups:
   title: Get information about &AS; groups using an &AWS; SDK
   title_abbrev: Get information about groups
@@ -244,7 +244,7 @@ auto-scaling_DescribeAutoScalingGroups:
                 - cpp.example_code.autoscaling.autoscaling_client
                 - cpp.example_code.autoscaling.describe_autoscaling_group
   services:
-    auto-scaling: { DescribeAutoScalingGroups }
+    auto-scaling: {DescribeAutoScalingGroups}
 auto-scaling_UpdateAutoScalingGroup:
   title: Update an &AS; group using an &AWS; SDK
   title_abbrev: Update a group
@@ -312,7 +312,7 @@ auto-scaling_UpdateAutoScalingGroup:
                 - cpp.example_code.autoscaling.update_autoscaling_group1
                 - cpp.example_code.autoscaling.update_autoscaling_group2
   services:
-    auto-scaling: { UpdateAutoScalingGroup }
+    auto-scaling: {UpdateAutoScalingGroup}
 auto-scaling_TerminateInstanceInAutoScalingGroup:
   title: Terminate an instance in an &AS; group using an &AWS; SDK
   title_abbrev: Terminate an instance in a group
@@ -383,7 +383,7 @@ auto-scaling_TerminateInstanceInAutoScalingGroup:
                 - rust.autoscaling.scenario.terminate_some_instance
                 - rust.autoscaling.scenario.get_group
   services:
-    auto-scaling: { TerminateInstanceInAutoScalingGroup }
+    auto-scaling: {TerminateInstanceInAutoScalingGroup}
 auto-scaling_SetDesiredCapacity:
   title: Set the desired capacity of an &AS; group using an &AWS; SDK
   title_abbrev: Set the desired capacity of a group
@@ -453,7 +453,7 @@ auto-scaling_SetDesiredCapacity:
               snippet_tags:
                 - rust.autoscaling.scenario.scale_desired_capacity
   services:
-    auto-scaling: { SetDesiredCapacity }
+    auto-scaling: {SetDesiredCapacity}
 auto-scaling_DescribeAutoScalingInstances:
   title: Get information about &AS; instances using an &AWS; SDK
   title_abbrev: Get information about instances
@@ -523,7 +523,7 @@ auto-scaling_DescribeAutoScalingInstances:
               snippet_tags:
                 - rust.autoscaling.scenario.list_instances
   services:
-    auto-scaling: { DescribeAutoScalingInstances }
+    auto-scaling: {DescribeAutoScalingInstances}
 auto-scaling_DescribeScalingActivities:
   title: Get information about &AS; activities using an &AWS; SDK
   title_abbrev: Get information about scaling activities
@@ -593,7 +593,7 @@ auto-scaling_DescribeScalingActivities:
               snippet_tags:
                 - rust.autoscaling.scenario.describe_scenario
   services:
-    auto-scaling: { DescribeScalingActivities }
+    auto-scaling: {DescribeScalingActivities}
 auto-scaling_EnableMetricsCollection:
   title: Enable &CW; metrics collection for an &AS; group using an &AWS; SDK
   title_abbrev: Enable metrics collection for a group
@@ -663,7 +663,7 @@ auto-scaling_EnableMetricsCollection:
               snippet_tags:
                 - rust.autoscaling.scenario.enable_metrics_collection
   services:
-    auto-scaling: { EnableMetricsCollection }
+    auto-scaling: {EnableMetricsCollection}
 auto-scaling_DisableMetricsCollection:
   title: Disable &CW; metrics collection for an &AS; group using an &AWS; SDK
   title_abbrev: Disable metrics collection for a group
@@ -733,7 +733,7 @@ auto-scaling_DisableMetricsCollection:
               snippet_tags:
                 - rust.autoscaling.scenario.disable_metrics_collection
   services:
-    auto-scaling: { DisableMetricsCollection }
+    auto-scaling: {DisableMetricsCollection}
 auto-scaling_Scenario_GroupsAndInstances:
   title: Manage &AS; groups and instances using an &AWS; SDK
   title_abbrev: Manage groups and instances
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index df28641e0c8..ff3eac403eb 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -32,7 +32,7 @@ jobs:
           )
       - uses: dtolnay/rust-toolchain@stable
         with:
-          toolchain: 1.69
+          toolchain: stable
           components: clippy, rustfmt
       - uses: actions/checkout@v3
       - name: Rust format