Сломался debug nunit 3 тестов в VS2015, проблема с vstest.executionengine.exe

инструменты visual studio
,
#1

В VS2015 проект с nunit тестами перестал дебажиться с такими ошибками в output консоли:

'vstest.executionengine.exe' (Win32): Loaded 'C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\CommonExtensions\Microsoft\TestWindow\vstest.executionengine.exe'. 
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\System32\ntdll.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\System32\mscoree.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\System32\kernel32.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\System32\KernelBase.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\System32\advapi32.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\System32\msvcrt.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\System32\sechost.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\System32\rpcrt4.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\Microsoft.NET\Framework64\v4.0.30319\mscoreei.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\System32\shlwapi.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\System32\combase.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\System32\ucrtbase.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\System32\bcryptprimitives.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\System32\gdi32.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\System32\gdi32full.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\System32\user32.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\System32\win32u.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\System32\imm32.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\System32\kernel.appcore.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\System32\version.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\Microsoft.NET\Framework64\v4.0.30319\clr.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\System32\msvcr120_clr0400.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\System32\psapi.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Unloaded 'C:\WINDOWS\System32\psapi.dll'
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\assembly\NativeImages_v4.0.30319_64\mscorlib\e535ebad8f3a3d4531139ca41cdd3819\mscorlib.ni.dll'. 
'vstest.executionengine.exe' (CLR v4.0.30319: DefaultDomain): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_64\mscorlib\v4.0_4.0.0.0__b77a5c561934e089\mscorlib.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\System32\ole32.dll'. Symbols loaded.
'vstest.executionengine.exe' (CLR v4.0.30319: DefaultDomain): Loaded 'C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO 14.0\COMMON7\IDE\COMMONEXTENSIONS\MICROSOFT\TESTWINDOW\vstest.executionengine.exe'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\Microsoft.NET\Framework64\v4.0.30319\clrjit.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\System32\oleaut32.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\System32\msvcp_win.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\CommonExtensions\Microsoft\TestWindow\Microsoft.VisualStudio.TestPlatform.TestExecutor.Core.dll'. 
'vstest.executionengine.exe' (Win32): Loaded 'C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\CommonExtensions\Microsoft\TestWindow\Microsoft.VisualStudio.TestPlatform.TestExecutor.Core.dll'. 
'vstest.executionengine.exe' (Win32): Unloaded 'C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\CommonExtensions\Microsoft\TestWindow\Microsoft.VisualStudio.TestPlatform.TestExecutor.Core.dll'
'vstest.executionengine.exe' (CLR v4.0.30319: vstest.executionengine.exe): Loaded 'C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO 14.0\COMMON7\IDE\COMMONEXTENSIONS\MICROSOFT\TESTWINDOW\Microsoft.VisualStudio.TestPlatform.TestExecutor.Core.dll'. Symbols loaded.
Step into: Stepping over property 'System.Collections.ArrayList.set_Capacity'.  To step into properties, go to Tools->Options->Debugging and uncheck 'Step over properties and operators (Managed only)'.
Step into: Stepping over property 'System.Collections.ArrayList.get_Count'.  To step into properties, go to Tools->Options->Debugging and uncheck 'Step over properties and operators (Managed only)'.
Step into: Stepping over property 'System.Collections.ArrayList.get_Count'.  To step into properties, go to Tools->Options->Debugging and uncheck 'Step over properties and operators (Managed only)'.
Step into: Stepping over property 'System.Text.StringBuilder.get_Capacity'.  To step into properties, go to Tools->Options->Debugging and uncheck 'Step over properties and operators (Managed only)'.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\assembly\NativeImages_v4.0.30319_64\System\29ccba8b80e0b745dae5a3402ee68f10\System.ni.dll'. 
'vstest.executionengine.exe' (CLR v4.0.30319: vstest.executionengine.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System\v4.0_4.0.0.0__b77a5c561934e089\System.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\CommonExtensions\Microsoft\TestWindow\Microsoft.VisualStudio.TestPlatform.ObjectModel.dll'. 
'vstest.executionengine.exe' (Win32): Loaded 'C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\CommonExtensions\Microsoft\TestWindow\Microsoft.VisualStudio.TestPlatform.ObjectModel.dll'. 
'vstest.executionengine.exe' (Win32): Unloaded 'C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\CommonExtensions\Microsoft\TestWindow\Microsoft.VisualStudio.TestPlatform.ObjectModel.dll'
'vstest.executionengine.exe' (CLR v4.0.30319: vstest.executionengine.exe): Loaded 'C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO 14.0\COMMON7\IDE\COMMONEXTENSIONS\MICROSOFT\TESTWINDOW\Microsoft.VisualStudio.TestPlatform.ObjectModel.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\CommonExtensions\Microsoft\TestWindow\Microsoft.VisualStudio.TestPlatform.Common.dll'. 
'vstest.executionengine.exe' (Win32): Loaded 'C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\CommonExtensions\Microsoft\TestWindow\Microsoft.VisualStudio.TestPlatform.Common.dll'. 
'vstest.executionengine.exe' (Win32): Unloaded 'C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\CommonExtensions\Microsoft\TestWindow\Microsoft.VisualStudio.TestPlatform.Common.dll'
'vstest.executionengine.exe' (CLR v4.0.30319: vstest.executionengine.exe): Loaded 'C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO 14.0\COMMON7\IDE\COMMONEXTENSIONS\MICROSOFT\TESTWINDOW\Microsoft.VisualStudio.TestPlatform.Common.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\assembly\NativeImages_v4.0.30319_64\System.Core\2901e6887c25982697794ec968c9e4a1\System.Core.ni.dll'. 
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\assembly\NativeImages_v4.0.30319_64\System.ServiceModel\c9c39538e5cf7e20b12f1040a9cbc7f9\System.ServiceModel.ni.dll'. 
'vstest.executionengine.exe' (CLR v4.0.30319: vstest.executionengine.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.ServiceModel\v4.0_4.0.0.0__b77a5c561934e089\System.ServiceModel.dll'. Symbols loaded.
'vstest.executionengine.exe' (CLR v4.0.30319: vstest.executionengine.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Core\v4.0_4.0.0.0__b77a5c561934e089\System.Core.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\CommonExtensions\Microsoft\TestWindow\Microsoft.VisualStudio.TestPlatform.Core.dll'. 
'vstest.executionengine.exe' (Win32): Loaded 'C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\CommonExtensions\Microsoft\TestWindow\Microsoft.VisualStudio.TestPlatform.Core.dll'. 
'vstest.executionengine.exe' (Win32): Unloaded 'C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\CommonExtensions\Microsoft\TestWindow\Microsoft.VisualStudio.TestPlatform.Core.dll'
'vstest.executionengine.exe' (CLR v4.0.30319: vstest.executionengine.exe): Loaded 'C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO 14.0\COMMON7\IDE\COMMONEXTENSIONS\MICROSOFT\TESTWINDOW\Microsoft.VisualStudio.TestPlatform.Core.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\assembly\NativeImages_v4.0.30319_64\System.Configuration\da86e77956c366e89d2723ce53361538\System.Configuration.ni.dll'. 
'vstest.executionengine.exe' (CLR v4.0.30319: vstest.executionengine.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Configuration\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Configuration.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\assembly\NativeImages_v4.0.30319_64\System.Xml\00bda55a967f2b9f2ccf8e0cde90907d\System.Xml.ni.dll'. 
'vstest.executionengine.exe' (CLR v4.0.30319: vstest.executionengine.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Xml\v4.0_4.0.0.0__b77a5c561934e089\System.Xml.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\System32\psapi.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\assembly\NativeImages_v4.0.30319_64\System.Runteb92aa12#\e486fa2059017ea169f983da59f47f16\System.Runtime.Serialization.ni.dll'. 
'vstest.executionengine.exe' (CLR v4.0.30319: vstest.executionengine.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Runtime.Serialization\v4.0_4.0.0.0__b77a5c561934e089\System.Runtime.Serialization.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\assembly\NativeImages_v4.0.30319_64\SMDiagnostics\7f31ebb9053c04aeaabf590e590e2e89\SMDiagnostics.ni.dll'. 
'vstest.executionengine.exe' (CLR v4.0.30319: vstest.executionengine.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\SMDiagnostics\v4.0_4.0.0.0__b77a5c561934e089\SMDiagnostics.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\assembly\NativeImages_v4.0.30319_64\System.Servd1dec626#\35afd95e5ab6885c5df328766991fdf0\System.ServiceModel.Internals.ni.dll'. 
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\System32\cryptsp.dll'. Symbols loaded.
'vstest.executionengine.exe' (Win32): Loaded 'C:\WINDOWS\System32\rsaenh.dll'. Symbols loaded.
The thread 0x1f5c has exited with code -1 (0xffffffff).
The thread 0x36e8 has exited with code -1 (0xffffffff).
The thread 0x3770 has exited with code -1 (0xffffffff).
The thread 0x1bb8 has exited with code -1 (0xffffffff).
The thread 0x2b0 has exited with code -1 (0xffffffff).
The thread 0x2c4 has exited with code -1 (0xffffffff).
The thread 0x840 has exited with code -1 (0xffffffff).
The thread 0x1250 has exited with code -1 (0xffffffff).
The thread 0x74c has exited with code -1 (0xffffffff).
The program '[9444] vstest.executionengine.exe' has exited with code -1 (0xffffffff).