Searching Solution Explorer with Roslyn Source causes VS to restart

[paul1956]

With Roslyn Update 1 source loaded and you search for random things (DefaultMarshallingCharSet always causes issue) Visual Studio crashes and reboots. Microsoft engineer diagnosed it to MuGetReferences could not find file 'C:\Users\Paul\Documents\GitHub\repos\roslyn-update-1\src\Scripting\CoreTest\packages.config'.

And the call stack is:
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.FileStream.Init(. . .)
at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize)
at System.Xml.XmlDownloadManager.GetStream(Uri uri, ICredentials credentials, IWebProxy proxy, RequestCachePolicy cachePolicy)
at System.Xml.XmlUrlResolver.GetEntity(Uri absoluteUri, String role, Type ofObjectToReturn)
at System.Xml.XmlTextReaderImpl.FinishInitUriString()
at System.Xml.XmlTextReaderImpl..ctor(String uriStr, XmlReaderSettings settings, XmlParserContext context, XmlResolver uriResolver)
at System.Xml.XmlReaderSettings.CreateReader(String inputUri, XmlParserContext inputContext)
at System.Xml.XmlReader.Create(String inputUri, XmlReaderSettings settings, XmlParserContext inputContext)
at System.Xml.Linq.XDocument.Load(String uri, LoadOptions options)
at Kzu.NuGetReferences.ReferencesGraphProvider.GetInstalledPackages(String packagesConfig)
at Kzu.NuGetReferences.ReferencesGraphProvider.SearchNextItem(String term, IGraphContext context)