CI flake: godot-testsuite

[clockwork-labs-bot]

Detected by CI Gremlin after a failed GitHub Actions attempt succeeded on rerun.

Tests:

• godot-testsuite

Error:
Process completed with exit code 1.
Node 20 is being deprecated. This workflow is running with Node 24 by default. If you need to temporarily use Node 20, you can set the ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION=true environment variable.

Failed job runs:

• https://github.com/clockworklabs/SpacetimeDB/actions/runs/28138250627/job/83330158920 (godot-testsuite, attempt 1 -> 2)

Context:

• none

[clockwork-labs-bot]

Diagnosis for the linked job/attempt only: run 28138250627, job 83330158920, attempt 1.

The detector headline picked up the final wrapper failure and a Node deprecation warning, but the real failure was later in the Godot build step. Earlier setup succeeded, including:

dotnet restore --configfile ../../../NuGet.Config blackholio.csproj

The failing command was:

godot --headless --verbose --path demo/Blackholio/client-godot --build-solutions --quit

Godot loaded the Blackholio project, started the .NET project build callback, and invoked:

/usr/share/dotnet/dotnet build .../demo/Blackholio/client-godot/blackholio.csproj -c Debug -v normal ... -p:GodotTargetPlatform=linuxbsd

That nested MSBuild process exited with code 139:

MSBuild exited with code: 139. Log file: /home/runner/.local/share/godot/mono/build_logs/8003971bbe52b6f3bd1311a35fb67478_Debug/msbuild_log.txt
ERROR: An EditorPlugin build callback failed.
ERROR: Command line option --build-solutions was passed, but the build callback failed. Aborting.

Root cause for this attempt: the Godot headless --build-solutions step failed because the nested dotnet build/MSBuild process for demo/Blackholio/client-godot/blackholio.csproj died with exit code 139 (segfault-class exit). The Node 20/24 deprecation warning is incidental and not the cause of this failure.

Suggested updated title:

CI flake: godot-testsuite MSBuild exits 139 during Blackholio build-solutions

Duplicate check in the Test Flakes project:

• CI flake: dotnet segfault #5311 (CI flake: dotnet segfault) is the closest duplicate/root tracker. Its captured failure is also godot-testsuite and a dotnet segmentation fault while working on blackholio.csproj, though that ticket's original failed command was dotnet restore rather than this attempt's nested dotnet build from Godot.
• CI flake: godot-testsuite - Mass should decay #5341 (CI flake: godot-testsuite - Mass should decay) is the same job family but a different failure signature: an actual Blackholio test assertion, not a .NET/MSBuild segfault.
• I did not find another open Test Flakes ticket with this exact MSBuild exited with code: 139 / Godot --build-solutions signature.