diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 526785e65e..ac5ea52a05 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -49,7 +49,7 @@ env:
   CARGO_INCREMENTAL: 0
   CARGO_NET_RETRY: 10
   RUSTFLAGS: "-D warnings -A deprecated"
-  RUSTUP_MAX_RETRIES: 10
+  RUSTUP_MAX_RETRIES: 11
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.head_ref }}
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
new file mode 100644
index 0000000000..8f4e60bac9
--- /dev/null
+++ b/.idea/workspace.xml
@@ -0,0 +1,113 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="AutoImportSettings">
+    <option name="autoReloadType" value="SELECTIVE" />
+  </component>
+  <component name="ChangeListManager">
+    <list default="true" id="77a9c8f0-e879-40c1-b914-3ddbe7f1cc28" name="Changes" comment="" />
+    <option name="SHOW_DIALOG" value="false" />
+    <option name="HIGHLIGHT_CONFLICTS" value="true" />
+    <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
+    <option name="LAST_RESOLUTION" value="IGNORE" />
+  </component>
+  <component name="ComposerSettings">
+    <execution />
+  </component>
+  <component name="Git.Settings">
+    <option name="RECENT_GIT_ROOT_PATH" value="$PROJECT_DIR$" />
+  </component>
+  <component name="MacroExpansionManager">
+    <option name="directoryName" value="4iex0fhc" />
+  </component>
+  <component name="MarkdownSettingsMigration">
+    <option name="stateVersion" value="1" />
+  </component>
+  <component name="PhpWorkspaceProjectConfiguration" interpreter_name="/opt/homebrew/Cellar/php@8.0/8.0.29_1/bin/php" />
+  <component name="ProjectColorInfo">{
+  &quot;associatedIndex&quot;: 0
+}</component>
+  <component name="ProjectId" id="2blbd4teRKuciM0Bii3Yn7FMidl" />
+  <component name="ProjectViewState">
+    <option name="hideEmptyMiddlePackages" value="true" />
+    <option name="showLibraryContents" value="true" />
+  </component>
+  <component name="PropertiesComponent"><![CDATA[{
+  "keyToString": {
+    "RunOnceActivity.OpenProjectViewOnStart": "true",
+    "RunOnceActivity.ShowReadmeOnStart": "true",
+    "RunOnceActivity.go.formatter.settings.were.checked": "true",
+    "RunOnceActivity.go.migrated.go.modules.settings": "true",
+    "WebServerToolWindowFactoryState": "false",
+    "git-widget-placeholder": "v2.230.0-light-metrics",
+    "go.import.settings.migrated": "true",
+    "node.js.detected.package.eslint": "true",
+    "node.js.detected.package.tslint": "true",
+    "node.js.selected.package.eslint": "(autodetect)",
+    "node.js.selected.package.tslint": "(autodetect)",
+    "nodejs_package_manager_path": "npm",
+    "org.rust.cargo.project.model.PROJECT_DISCOVERY": "true",
+    "org.rust.hideNoCargoProjectNotifications/Users/wenliang.chen/dev/linkerd2-proxy/linkerd/tls/src/server.rs": "true",
+    "org.rust.hideToolchainNotifications": "true",
+    "settings.editor.selected.configurable": "language.rust",
+    "vue.rearranger.settings.migration": "true"
+  }
+}]]></component>
+  <component name="RunManager">
+    <configuration default="true" type="GoApplicationRunConfiguration" factoryName="Go Application">
+      <module name="linkerd2-proxy" />
+      <working_directory value="$PROJECT_DIR$" />
+      <go_parameters value="-i" />
+      <kind value="FILE" />
+      <directory value="$PROJECT_DIR$" />
+      <filePath value="$PROJECT_DIR$" />
+      <method v="2" />
+    </configuration>
+    <configuration default="true" type="GoTestRunConfiguration" factoryName="Go Test">
+      <module name="linkerd2-proxy" />
+      <working_directory value="$PROJECT_DIR$" />
+      <go_parameters value="-i" />
+      <kind value="DIRECTORY" />
+      <directory value="$PROJECT_DIR$" />
+      <filePath value="$PROJECT_DIR$" />
+      <framework value="gotest" />
+      <method v="2" />
+    </configuration>
+  </component>
+  <component name="SpellCheckerSettings" RuntimeDictionaries="0" Folders="0" CustomDictionaries="0" DefaultDictionary="application-level" UseSingleDictionary="true" transferred="true" />
+  <component name="TaskManager">
+    <task active="true" id="Default" summary="Default task">
+      <changelist id="77a9c8f0-e879-40c1-b914-3ddbe7f1cc28" name="Changes" comment="" />
+      <created>1706792696974</created>
+      <option name="number" value="Default" />
+      <option name="presentableId" value="Default" />
+      <updated>1706792696974</updated>
+      <workItem from="1706792698008" duration="2596000" />
+      <workItem from="1715589202380" duration="1329000" />
+      <workItem from="1715590538219" duration="5777000" />
+      <workItem from="1715603753395" duration="927000" />
+      <workItem from="1715678151499" duration="650000" />
+    </task>
+    <servers />
+  </component>
+  <component name="TypeScriptGeneratedFilesManager">
+    <option name="version" value="3" />
+  </component>
+  <component name="Vcs.Log.Tabs.Properties">
+    <option name="TAB_STATES">
+      <map>
+        <entry key="MAIN">
+          <value>
+            <State />
+          </value>
+        </entry>
+      </map>
+    </option>
+  </component>
+  <component name="VgoProject">
+    <settings-migrated>true</settings-migrated>
+  </component>
+  <component name="XSLT-Support.FileAssociations.UIState">
+    <expand />
+    <select />
+  </component>
+</project>
\ No newline at end of file
diff --git a/linkerd/app/core/src/metrics.rs b/linkerd/app/core/src/metrics.rs
index 3fd374031b..c72d91c0af 100644
--- a/linkerd/app/core/src/metrics.rs
+++ b/linkerd/app/core/src/metrics.rs
@@ -135,7 +135,7 @@ where
     let mut out = format!("{}_{}=\"{}\"", prefix, k0, v0);
 
     for (k, v) in labels_iter {
-        write!(out, ",{}_{}=\"{}\"", prefix, k, v).expect("label concat must succeed");
+        write!(out, ",{}_{}=\"{}\"", prefix, k, v).expect("label concat must succeed to proceed");
     }
     Some(out)
 }