Fix failing tests

Author: JanKrivanek

src/Build/BackEnd/BuildManager/BuildManager.cs

@@ -569,7 +569,7 @@ public void BeginBuild(BuildParameters parameters)
                 // Initialize components.
                 _nodeManager = ((IBuildComponentHost)this).GetComponent(BuildComponentType.NodeManager) as INodeManager;
 
-                _buildParameters.IsTelemetryEnabled = OpenTelemetryManager.Instance.IsActive();
+                _buildParameters.IsTelemetryEnabled |= OpenTelemetryManager.Instance.IsActive();
                 var loggingService = InitializeLoggingService();
 
                 // Log deferred messages and response files

src/Framework/Telemetry/WorkerNodeTelemetryEventArgs.cs

@@ -42,7 +42,10 @@ internal override void CreateFromStream(BinaryReader reader, int version)
         for (int i = 0; i < count; i++)
         {
             tasksExecutionData.Add(ReadFromStream(reader),
-                new TaskExecutionStats(TimeSpan.FromTicks(reader.ReadInt64()), reader.ReadInt16(), reader.ReadInt64()));
+                new TaskExecutionStats(
+                    TimeSpan.FromTicks(reader.ReadInt64()),
+                    reader.ReadInt32(),
+                    reader.ReadInt64()));
         }
 
         count = reader.Read7BitEncodedInt();