[wasm] System.Runtime.Tests exiting silently on main #83443
Description
When I do a clean build on commits 2b185ac, 3816ed1 or a78f9bd, System.Runtime.Tests silently exits with an exit code of 0 (well, to be precise, v8 exits) during execution (not immediately after starting the test run, it's part way in somewhere). The output looks like this:
like so:
info: Using js engine V8 from path /home/kate/.jsvu/v8
info: V8 version: 11.3.175
info: Running /home/kate/.jsvu/v8 --expose_wasm --stack-trace-limit=1000 --experimental-wasm-bigint test-main.js -- --run WasmTestRunner.dll System.Runtime.Tests.dll -notrait category=AdditionalTimezoneChecks -notrait category=OuterLoop -notrait category=failing
info: Warning: unknown flag --experimental-wasm-bigint.
info: Incoming arguments: --run WasmTestRunner.dll System.Runtime.Tests.dll -notrait category=AdditionalTimezoneChecks -notrait category=OuterLoop -notrait category=failing
info: Application arguments: --run WasmTestRunner.dll System.Runtime.Tests.dll -notrait category=AdditionalTimezoneChecks -notrait category=OuterLoop -notrait category=failing
info: console.info: Initializing dotnet version 8.0.0-dev commit hash 5629069f8f1c597d382997ad948233b9fb8688f5
info: Discovering: System.Runtime.Tests.dll (method display = ClassAndMethod, method display options = None)
info: Discovered: System.Runtime.Tests.dll (found 8979 of 9172 test cases)
info: Using random seed for test cases: 1887416109
info: Using random seed for collections: 1887416109
info: Starting: System.Runtime.Tests.dll
info: Process v8 exited with 0
info: Waiting to flush log messages with a timeout of 120 secs ..
info: Application has finished with exit code: 0
XHarness exit code: 0
~/Projects/dotnet-runtime-wasm/artifacts/bin/System.Runtime.Tests/Release/net8.0-browser/browser-wasm/AppBundle ~/Projects/dotnet-runtime-wasm/src/libraries/System.Runtime/tests
----- end Tue 14 Mar 2023 11:11:12 PM PDT ----- exit code 0 ----------------------------------------------------------
XHarness artifacts: /home/kate/Projects/dotnet-runtime-wasm/artifacts/bin/System.Runtime.Tests/Release/net8.0-browser/browser-wasm/AppBundle/xharness-output
Build succeeded.
I'm able to successfully run browser-bench and dotnet/performance benchmarks on current main so it's not completely broken, but something seems seriously wrong if tests are able to "succeed" when crashing. Historically our infra has been good about always exiting with a nonzero exit code when something goes wrong.
I thought it might be v8, so I updated my previous build of v8 to latest using jsvu and saw no difference.
When changing commits I deleted .dotnet and artifacts, re-provisioned emsdk, and pkill -9'd dotnet.
Does not appear to reproduce if I check out 8d9ca3f, so it might be broken by #81215 ?