Stryker hangs when using the multi test project feature

[richardwerkman]

Describe the bug
When using stryker with 2 or more testprojects the run seems to stop (without exiting) during the testing mutant phase.

Logs
Will add soon

Expected behavior
The run should continue without any interuption.

Desktop (please complete the following information):

• OS: Windows
• Type of project: Core
• Framework Version Core 2.1
• Stryker Version 0.18

Additional context
The problem does not always occur, so this could prove hard to debug

[richardwerkman]

After further investigation it looks like the vstest runners crash one by one. After the last one has crashed stryker keeps waiting forever.

It's not clear why the vstest runners crash. The last output in the logs contain:

2020-07-09T21:06:07.0150805+02:00  [DBG] Runner 1: Each mutant's fate has been established, we can stop. (b49f87dc)
2020-07-09T21:06:07.0373632+02:00  [VRB] Runner 1: [Error] Cancelling the operation as requested. (3478123c)
2020-07-09T21:06:07.0374326+02:00  [VRB] Runner 1: [Error] Cancelling the operation as requested. (3478123c)

This is the same for each runner.

[ohoward2001]

Any update on when this issue might be sorted? Thanks

[richardwerkman]

I'm sorry I don't know. This is not in our hands. We addressed this issue @ vstest almost two years ago. Currently a fix is ready to be merged but I'm not in the position to know when this release will take place. I hope soon. Once vstest releases the fix we will update stryker immediately

[psfinaki]

Small insider update: this is hoped to be deliver along with VS2022 17.2. When is that - I don't know :D But now it's 17.0.5 so maybe not so long from now.

[rouke-broersma]

That's awesome :) Hopefully by then we can update since we're currently blocked on #1870 due to microsoft/vstest#3144 :D

[dupdob]

I think this is worth retrying with V 1.51, or the release after that one.
I assumed the problem is fixed