Fixing how we clean the file when it fails to download. We were doing it inside the using statement, so it still had a lock to the file and failed to delete it.

build_projects/dotnet-cli-build/DownloadFile.cs

@@ -34,19 +34,19 @@ namespace Microsoft.DotNet.Cli.Build
             {
                 var getTask = httpClient.GetStreamAsync(Uri);
 
-                using (var outStream = File.Create(DestinationPath))
-                {
                 try
+                {
+                    using (var outStream = File.Create(DestinationPath))
                     {
                         getTask.Result.CopyTo(outStream);
                     }
+                }
                 catch (Exception)
                 {
                     File.Delete(DestinationPath);
                     throw;
                 }
             }
-            }
 
             return true;
         }