diff --git a/packages/ddp-client/common/MethodInvoker.js b/packages/ddp-client/common/MethodInvoker.js
index 0312ea900e..f2490b92f8 100644
--- a/packages/ddp-client/common/MethodInvoker.js
+++ b/packages/ddp-client/common/MethodInvoker.js
@@ -46,7 +46,6 @@ export default class MethodInvoker {
   // Invoke the callback, if we have both a result and know that all data has
   // been written to the local cache.
   _maybeInvokeCallback() {
-    console.log(this._methodResult, this._dataVisible);
     if (this._methodResult && this._dataVisible) {
       // Call the callback. (This won't throw: the callback was wrapped with
       // bindEnvironment.)
diff --git a/packages/ddp-server/livedata_server.js b/packages/ddp-server/livedata_server.js
index b1fd001612..4c12fa04c4 100644
--- a/packages/ddp-server/livedata_server.js
+++ b/packages/ddp-server/livedata_server.js
@@ -1545,9 +1545,7 @@ Server = function (options = {}) {
 
     socket.on('close', function () {
       if (socket._meteorSession) {
-        Meteor._runAsync(function() {
-          socket._meteorSession.close();
-        });
+        socket._meteorSession.close();
       }
     });
   });
diff --git a/packages/minimongo/cursor.js b/packages/minimongo/cursor.js
index 6735e132d5..a344b99661 100644
--- a/packages/minimongo/cursor.js
+++ b/packages/minimongo/cursor.js
@@ -227,7 +227,7 @@ export default class Cursor {
    * @param {Object} callbacks Functions to call to deliver the result set as it
    *                           changes
    */
-  observeChanges(options) {
+  async observeChanges(options) {
     const ordered = LocalCollection._observeChangesCallbacksAreOrdered(options);
 
     // there are several places that assume you aren't combining skip/limit with
@@ -369,7 +369,7 @@ export default class Cursor {
 
     // run the observe callbacks resulting from the initial contents
     // before we leave the observe.
-    this.collection._observeQueue.drain();
+    await this.collection._observeQueue.drain();
 
     return handle;
   }
diff --git a/packages/mongo/observe_changes_tests.js b/packages/mongo/observe_changes_tests.js
index 43e318a36f..0479d6a60d 100644
--- a/packages/mongo/observe_changes_tests.js
+++ b/packages/mongo/observe_changes_tests.js
@@ -58,34 +58,46 @@ _.each ([{added: 'added', forceOrdered: true},
     });
 });
 
-Tinytest.addAsync("observeChanges - callback isolation", function (test, onComplete) {
+Tinytest.addAsync('observeChanges - callback isolation', async function(
+  test,
+  onComplete
+) {
   var c = makeCollection();
-  withCallbackLogger(test, ["added", "changed", "removed"], Meteor.isServer, function (logger) {
-    var handles = [];
-    var cursor = c.find();
-    handles.push(cursor.observeChanges(logger));
-    // fields-tampering observer
-    handles.push(cursor.observeChanges({
-      added: function(id, fields) {
-        fields.apples = 'green';
-      },
-      changed: function(id, fields) {
-        fields.apples = 'green';
-      },
-    }));
+  await withCallbackLogger(
+    test,
+    ['added', 'changed', 'removed'],
+    Meteor.isServer,
+    async function(logger) {
+      var handles = [];
+      var cursor = c.find();
+      handles.push(await cursor.observeChanges(logger));
+      // fields-tampering observer
+      handles.push(
+        await cursor.observeChanges({
+          added: function(id, fields) {
+            fields.apples = 'green';
+          },
+          changed: function(id, fields) {
+            fields.apples = 'green';
+          },
+        })
+      );
 
-    var fooid = c.insert({apples: "ok"});
-    logger.expectResult("added", [fooid, {apples: "ok"}]);
+      var fooid = await c.insertAsync({ apples: 'ok' });
+      logger.expectResult('added', [fooid, { apples: 'ok' }]);
 
-    c.update(fooid, {apples: "not ok"});
-    logger.expectResult("changed", [fooid, {apples: "not ok"}]);
+      await c.updateAsync(fooid, { apples: 'not ok' });
 
-    test.equal(c.findOne(fooid).apples, "not ok");
+      logger.expectResult('changed', [fooid, { apples: 'not ok' }]);
 
-    _.each(handles, function(handle) { handle.stop(); });
-    onComplete();
-  });
+      test.equal((await c.findOneAsync(fooid)).apples, 'not ok');
 
+      for (const handle of handles) {
+        await handle.stop();
+      }
+      onComplete();
+    }
+  );
 });
 
 Tinytest.addAsync("observeChanges - single id - initial adds", function (test, onComplete) {