diff --git a/editors/code/src/commands.ts b/editors/code/src/commands.ts
index cbda619ea9..3469fe5ec4 100644
--- a/editors/code/src/commands.ts
+++ b/editors/code/src/commands.ts
@@ -129,7 +129,8 @@ export function joinLines(ctx: Ctx): Cmd {
             client.protocol2CodeConverter.asTextEdits(items).forEach((edit: any) => {
                 builder.replace(edit.range, edit.newText);
             });
-        });
+        })
+        .then(() => {}, console.error);
     };
 }
 
@@ -246,7 +247,8 @@ export function ssr(ctx: Ctx): Cmd {
             });
 
             await vscode.workspace.applyEdit(client.protocol2CodeConverter.asWorkspaceEdit(edit));
-        });
+        })
+        .then(() => {}, console.error);
     };
 }
 
@@ -465,7 +467,8 @@ export function showReferences(ctx: Ctx): Cmd {
                 vscode.Uri.parse(uri),
                 client.protocol2CodeConverter.asPosition(position),
                 locations.map(client.protocol2CodeConverter.asLocation),
-            );
+            )
+            .then(() => {}, console.error);
         }
     };
 }
@@ -477,7 +480,8 @@ export function applyActionGroup(_ctx: Ctx): Cmd {
         vscode.commands.executeCommand(
             'rust-analyzer.resolveCodeAction',
             selectedAction.arguments,
-        );
+        )
+        .then(() => {}, console.error);
     };
 }
 
@@ -510,7 +514,8 @@ export function openDocs(ctx: Ctx): Cmd {
         const doclink = await client.sendRequest(ra.openDocs, { position, textDocument });
 
         if (doclink != null) {
-            vscode.commands.executeCommand("vscode.open", vscode.Uri.parse(doclink));
+            vscode.commands.executeCommand("vscode.open", vscode.Uri.parse(doclink))
+                .then(() => {}, console.error);
         }
     };
 
diff --git a/editors/code/src/debug.ts b/editors/code/src/debug.ts
index 874b858d9e..0bbaae2b0a 100644
--- a/editors/code/src/debug.ts
+++ b/editors/code/src/debug.ts
@@ -78,7 +78,8 @@ async function getDebugConfiguration(ctx: Ctx, runnable: ra.Runnable): Promise<v
 
     if (!debugEngine) {
         vscode.window.showErrorMessage(`Install [CodeLLDB](https://marketplace.visualstudio.com/items?itemName=vadimcn.vscode-lldb)`
-            + ` or [MS C++ tools](https://marketplace.visualstudio.com/items?itemName=ms-vscode.cpptools) extension for debugging.`);
+            + ` or [MS C++ tools](https://marketplace.visualstudio.com/items?itemName=ms-vscode.cpptools) extension for debugging.`)
+            .then(() => {}, console.error);
         return;
     }
 
diff --git a/editors/code/src/main.ts b/editors/code/src/main.ts
index 1900d900af..a5c728b675 100644
--- a/editors/code/src/main.ts
+++ b/editors/code/src/main.ts
@@ -76,7 +76,8 @@ async function tryActivate(context: vscode.ExtensionContext) {
     // This a horribly, horribly wrong way to deal with this problem.
     ctx = await Ctx.create(config, context, serverPath, workspaceFolder.uri.fsPath);
 
-    setContextValue(RUST_PROJECT_CONTEXT_NAME, true);
+    setContextValue(RUST_PROJECT_CONTEXT_NAME, true)
+        .then(() => {}, console.error);
 
     // Commands which invokes manually via command palette, shortcut, etc.
 
@@ -142,7 +143,8 @@ async function tryActivate(context: vscode.ExtensionContext) {
 }
 
 export async function deactivate() {
-    setContextValue(RUST_PROJECT_CONTEXT_NAME, undefined);
+    setContextValue(RUST_PROJECT_CONTEXT_NAME, undefined)
+        .then(() => {}, console.error);
     await ctx?.client.stop();
     ctx = undefined;
 }
@@ -186,7 +188,8 @@ async function bootstrapExtension(config: Config, state: PersistentState): Promi
     }).catch((e) => {
         log.error(e);
         if (state.releaseId === undefined) { // Show error only for the initial download
-            vscode.window.showErrorMessage(`Failed to download rust-analyzer nightly ${e}`);
+            vscode.window.showErrorMessage(`Failed to download rust-analyzer nightly ${e}`)
+                .then(() => {}, console.error);
         }
         return undefined;
     });
@@ -305,7 +308,7 @@ async function getServer(config: Config, state: PersistentState): Promise<string
             "If you feel that your platform should be supported, please create an issue " +
             "about that [here](https://github.com/rust-analyzer/rust-analyzer/issues) and we " +
             "will consider it."
-        );
+        ).then(() => {}, console.error);
         return undefined;
     }
     const ext = platform.indexOf("-windows-") !== -1 ? ".exe" : "";
@@ -433,6 +436,7 @@ function warnAboutExtensionConflicts() {
         vscode.window.showWarningMessage(
             `You have both the ${fst[0]} (${fst[1]}) and ${sec[0]} (${sec[1]}) ` +
             "plugins enabled. These are known to conflict and cause various functions of " +
-            "both plugins to not work correctly. You should disable one of them.", "Got it");
+            "both plugins to not work correctly. You should disable one of them.", "Got it")
+            .then(() => {}, console.error);
     };
 }
diff --git a/editors/code/src/run.ts b/editors/code/src/run.ts
index 50c17bc7f1..e30fdb38e6 100644
--- a/editors/code/src/run.ts
+++ b/editors/code/src/run.ts
@@ -45,7 +45,8 @@ export async function selectRunnable(ctx: Ctx, prevRunnable?: RunnableQuickPick,
     if (items.length === 0) {
         // it is the debug case, run always has at least 'cargo check ...'
         // see crates\rust-analyzer\src\main_loop\handlers.rs, handle_runnables
-        vscode.window.showErrorMessage("There's no debug target!");
+        vscode.window.showErrorMessage("There's no debug target!")
+            .then(() => {}, console.error);
         return;
     }