fix: MSRV 1.90 CI fixes

Author: vcjana

aws/codegen-aws-sdk/src/test/kotlin/software/amazon/smithy/rustsdk/EndpointOverrideMetricDecoratorTest.kt

@@ -88,7 +88,7 @@ class EndpointOverrideMetricDecoratorTest {
         awsSdkIntegrationTest(
             model,
             testParams,
-            environment = mapOf("RUSTUP_TOOLCHAIN" to "1.88.0"),
+            environment = mapOf("RUSTUP_TOOLCHAIN" to "1.90.0"),
         ) { context, rustCrate ->
             val rc = context.runtimeConfig
             val moduleName = context.moduleUseName()
@@ -156,7 +156,7 @@ class EndpointOverrideMetricDecoratorTest {
         awsSdkIntegrationTest(
             model,
             testParams,
-            environment = mapOf("RUSTUP_TOOLCHAIN" to "1.88.0"),
+            environment = mapOf("RUSTUP_TOOLCHAIN" to "1.90.0"),
         ) { context, rustCrate ->
             val rc = context.runtimeConfig
             val moduleName = context.moduleUseName()

aws/rust-runtime/aws-types/src/sdk_config.rs

@@ -442,16 +442,21 @@ impl Builder {
     ///
     /// # Examples
     /// Disabling identity caching:
-    /// ```rust
-    /// # use aws_types::SdkConfig;
+    /// ```no_run
+    /// # #[cfg(feature = "examples")]
+    /// # fn example() {
+    /// use aws_types::SdkConfig;
     /// use aws_smithy_runtime::client::identity::IdentityCache;
     /// let config = SdkConfig::builder()
     ///     .identity_cache(IdentityCache::no_cache())
     ///     .build();
+    /// # }
     /// ```
     /// Changing settings on the default cache implementation:
-    /// ```rust
-    /// # use aws_types::SdkConfig;
+    /// ```no_run
+    /// # #[cfg(feature = "examples")]
+    /// # fn example() {
+    /// use aws_types::SdkConfig;
     /// use aws_smithy_runtime::client::identity::IdentityCache;
     /// use std::time::Duration;
     ///
@@ -462,6 +467,7 @@ impl Builder {
     ///             .build()
     ///     )
     ///     .build();
+    /// # }
     /// ```
     pub fn identity_cache(mut self, cache: impl ResolveCachedIdentity + 'static) -> Self {
         self.set_identity_cache(Some(cache.into_shared()));
@@ -475,8 +481,10 @@ impl Builder {
     /// expires.
     ///
     /// # Examples
-    /// ```rust
-    /// # use aws_types::SdkConfig;
+    /// ```no_run
+    /// # #[cfg(feature = "examples")]
+    /// # fn example() {
+    /// use aws_types::SdkConfig;
     /// use aws_smithy_runtime::client::identity::IdentityCache;
     ///
     /// fn override_identity_cache() -> bool {
@@ -489,6 +497,7 @@ impl Builder {
     ///     builder.set_identity_cache(Some(IdentityCache::lazy().build()));
     /// }
     /// let config = builder.build();
+    /// # }
     /// ```
     pub fn set_identity_cache(&mut self, cache: Option<SharedIdentityCache>) -> &mut Self {
         self.identity_cache = cache;