[9.0] Dead lettering in wasi-wasm linux Release LibraryTests_Smoke_AOT

[carlossanlop]

I noticed that System.Collections.Specialized.Tests are consistently dead-lettering in CI.

Here's an example, and I'll post a few more to try to find a pattern:

• Queue: wasi-wasm linux Release LibraryTests_Smoke_AOT
• Job: https://dev.azure.com/dnceng-public/public/_build/results?buildId=811423&view=logs&j=c7c1db7e-ba2e-53a1-95a8-004ac0835cce&t=a777f7b8-f9b5-5f6c-28fa-927f5a2f9cf2&l=59
• Log: https://helix.dot.net/api/2019-06-17/jobs/461e182d-a76d-41f4-8086-70033daf599d/workitems/System.Collections.Specialized.Tests/console

[dotnet-policy-service]

Tagging subscribers to this area: @dotnet/area-system-collections
See info in area-owners.md if you want to be subscribed.

[eiriktsarpalis]

What does dead lettering mean in the context of helix jobs? Does it mean that the test process is running forever or crashing or something different?

[dotnet-policy-service]

Tagging subscribers to 'arch-wasm': @lewing
See info in area-owners.md if you want to be subscribed.

[carlossanlop]

Might not be unique to System.Collections.Specialized after all. I think this is a problem specific to wasi-wasm linux Release LibraryTests_Smoke_AOT. The Specialized test might just be consistently running first and showing up as the "culprit", but it really isn't.

I'll change the issue title.

Here's another example:

• 9.0 PR [release/9.0] Update dependencies from dotnet/cecil #108192
• Queue: wasi-wasm linux Release LibraryTests_Smoke_AOT
• Job: https://dev.azure.com/dnceng-public/public/_build/results?buildId=819140&view=logs&j=c7c1db7e-ba2e-53a1-95a8-004ac0835cce&t=a777f7b8-f9b5-5f6c-28fa-927f5a2f9cf2&l=58
• Log: https://helix.dot.net/api/2019-06-17/jobs/9e198532-56d5-4625-90d3-80d939526153/workitems/System.Collections.Specialized.Tests/console

[dotnet-policy-service]

Tagging subscribers to this area: @directhex, @matouskozak
See info in area-owners.md if you want to be subscribed.

[carlossanlop]

@lewing this might also be happening in other branches, not just 9.0, so feel free to change the milestone.