runtime: [Perf] CreateStore task failing in scenario benchmark testing

I’ve tested this a few times locally, and I can consistently repro it. When the MusicStore/AllReady CreateStore task runs in our perf harness infrastructure, we get the following error:

    Running Process: powershell.exe .\AspNet-GenerateStore.ps1 -InstallDir .store -Architecture x64 -Runtime win7-x64
    Working Directory: C:\michelm\coreclr\bin\sandbox_logs\Scenarios\Off\JitBench\K
    Additional Environment Variables: PATH=C:\michelm\coreclr\bin\sandbox_logs\Scenarios\Off\JitBench\.dotnet;C:\Program Files\Common Files\Microsoft Shared\Microsoft Online Services;C:\Program Files (x86)\Common Files\Microsoft Shared\Microsoft Online Services;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\Program Files\CMake\bin;C:\Program Files (x86)\Vim\vim80;C:\Program Files\Git\bin;C:\Program Files\dotnet\;C:\Program Files\Microsoft SQL Server\130\Tools\Binn\;C:\Users\michelm\.dnx\bin;C:\Program Files\Microsoft DNX\Dnvm\;C:\Program Files\Microsoft SQL Server\120\Tools\Binn\;C:\Program Files\nodejs\;C:\Program Files\PuTTY\;C:\Users\michelm\AppData\Local\Programs\Python\Python36-32\Scripts\;C:\Users\michelm\AppData\Local\Programs\Python\Python36-32\;C:\Users\michelm\AppData\Local\Microsoft\WindowsApps;C:\Users\michelm\.dotnet\tools;C:\michelm\optimization\output\CLRx64WIN2.1\PGO\DotNet_FirstTimeXP\user\AppData\Local\Microsoft\WindowsApps;C:\Users\michelm\AppData\Roaming\npm;C:\michelm\optimization\output\CLRx64WIN2.1\PGO\DotNet_FirstTimeXP\user\.dotnet\tools;C:\output\CLRx86WIN2.1\PGO\DotNet_FirstTimeXP\user\.dotnet\tools;C:\output\CLRx64WINmas\PGO\DotNet_FirstTimeXP\user\.dotnet\tools;C:\output\CLRx64WIN2.1\PGO\DotNet_FirstTimeXP\user\.dotnet\tools, JITBENCH_TARGET_FRAMEWORK_MONIKER=netcoreapp2.1, JITBENCH_FRAMEWORK_VERSION=2.1.0-preview3-26327-01
    {
        00:00.482: Running dotnet store --manifest .\CreateStore\CreateStore.proj -f netcoreapp2.1 -r win7-x64 --framework-version 2.1.0-preview3-26327-01 -w C:\michelm\coreclr\bin\sandbox_logs\Scenarios\Off\JitBench\K\.temp -o C:\michelm\coreclr\bin\sandbox_logs\Scenarios\Off\JitBench\K\.store --skip-symbols
        00:01.085: Microsoft (R) Build Engine version 15.5.178.35674 for .NET Core
        00:01.085: Copyright (C) Microsoft Corporation. All rights reserved.
        00:01.085: 
        00:01.879:   Restoring packages for C:\michelm\coreclr\bin\sandbox_logs\Scenarios\Off\JitBench\K\CreateStore\CreateStore.proj...
        00:02.232:   Generating MSBuild file C:\michelm\coreclr\bin\sandbox_logs\Scenarios\Off\JitBench\K\.temp\Optimize\CreateStore.proj.nuget.g.props.
        00:02.238:   Generating MSBuild file C:\michelm\coreclr\bin\sandbox_logs\Scenarios\Off\JitBench\K\.temp\Optimize\CreateStore.proj.nuget.g.targets.
        00:02.253:   Restore completed in 365.67 ms for C:\michelm\coreclr\bin\sandbox_logs\Scenarios\Off\JitBench\K\CreateStore\CreateStore.proj.
        00:02.743:   Restoring packages for C:\michelm\coreclr\bin\sandbox_logs\Scenarios\Off\JitBench\K\CreateStore\CreateStore.proj...
        00:02.976: C:\michelm\coreclr\bin\sandbox_logs\Scenarios\Off\JitBench\.dotnet\sdk\2.2.0-preview1-007558\NuGet.targets(103,5): error : Unable to load the service index for source https://api.nuget.org/v3/index.json. [C:\michelm\coreclr\bin\sandbox_logs\Scenarios\Off\JitBench\K\CreateStore\CreateStore.proj]
        00:02.976: C:\michelm\coreclr\bin\sandbox_logs\Scenarios\Off\JitBench\.dotnet\sdk\2.2.0-preview1-007558\NuGet.targets(103,5): error :   Unknown error (0xffffffff) [C:\michelm\coreclr\bin\sandbox_logs\Scenarios\Off\JitBench\K\CreateStore\CreateStore.proj]
        00:03.081: C:\michelm\coreclr\bin\sandbox_logs\Scenarios\Off\JitBench\.dotnet\sdk\2.2.0-preview1-007558\Sdks\Microsoft.NET.Sdk\build\Microsoft.NET.Publish.targets(249,5): error : Assets file 'C:\michelm\coreclr\bin\sandbox_logs\Scenarios\Off\JitBench\K\.temp\Microsoft.AspNetCore.All_\\project.assets.json' not found. Run a NuGet package restore to generate this file. [C:\michelm\coreclr\bin\sandbox_logs\Scenarios\Off\JitBench\K\CreateStore\CreateStore.proj]
        00:03.087:   Files were composed in C:\michelm\coreclr\bin\sandbox_logs\Scenarios\Off\JitBench\K\.store\x64\netcoreapp2.1\
        00:03.087:   The list of packages stored is in C:\michelm\coreclr\bin\sandbox_logs\Scenarios\Off\JitBench\K\.store\x64\netcoreapp2.1\artifact.xml 
        00:03.393: Setting JITBENCH_ASPNET_MANIFEST to C:\michelm\coreclr\bin\sandbox_logs\Scenarios\Off\JitBench\K\.store\x64\netcoreapp2.1\artifact.xml
        00:03.394: Setting DOTNET_SHARED_STORE to C:\michelm\coreclr\bin\sandbox_logs\Scenarios\Off\JitBench\K\.store
    }
    Exit code: 0 ( 00:03.429 elapsed)

When I use the dotnet.exe downloaded by the tooling (with all environment variables set up correctly), but outside the harness, I get the same failure. However, when I manually download the exact same SDK and runtime versions using the Dotnet-Install script, I can successfully run AspNet-GenerateStore.ps1.

I’m not exactly sure what is going on here.