Test Host Process Crashes After 5.0.1 Upgrade

[adamrodger]

Version information:

• OS: Linux x64
• PactNet Version: 5.0.1
• .Net Version: 9.0

Describe the bug

After the upgrade from PactNet 5.0.0 to 5.0.1, I get an error when running provider tests inside a .Net Docker container:

The active test run was aborted. Reason: Test host process crashed

Test Run Aborted.
       _VSTestConsole:
         MSB4181: The "VSTestTask" task returned false but did not log an error.
     1>Done Building Project "/app/tests/MyProject.Pacts/MyProject.Pacts.csproj" (VSTest target(s)) -- FAILED.

Build FAILED.
    0 Warning(s)
    0 Error(s)

Time Elapsed 00:00:03.52
Process exited with code 1
Test ignored: MyProject.ProviderTests.VerifyPacts, ignore reason: Interrupted by build execution timeout

Consumer tests work absolutely fine, it's only provider tests that crash.

Steps To Reproduce

Unsure currently - it was working fine before the upgrade

Additional context

The diff between 5.0.0 and 5.0.1 only really has an FFI upgrade in it, so I'm assuming the issue is there and that it's crashing the provider tests.

[adamrodger]

I downgraded to 5.0.0 and the issue goes away. I'll try to see if there's a way to slowly increment the FFI version to work out which one breaks between 0.4.23 (v5.0.0) and 0.4.27 (v5.0.1), then maybe we can spot what causes this. I suspect the FFI either deadlocks, segfaults or panics, and that kills the .Net test process.