chore(ci): temporary Windows check repro, show stderr

Author: miguel-heygen

.github/workflows/cliopen-win-check.yml

@@ -59,7 +59,8 @@ jobs:
             Write-Host "RUN $i exited=$exited code=$($p.ExitCode) at $($sw.Elapsed.TotalSeconds)s"
             $eof = $outTask.Wait(60000)
             Write-Host "RUN $i stdout EOF reached=$eof at $($sw.Elapsed.TotalSeconds)s"
-            if ($eof) { Write-Host $outTask.Result }
+            Write-Host "--- stdout:"; if ($eof) { Write-Host $outTask.Result }
+            Write-Host "--- stderr:"; if ($errTask.Wait(20000)) { Write-Host $errTask.Result } else { Write-Host "(stderr never reached EOF)" }
             Get-CimInstance Win32_Process -Filter "Name='node.exe'" | ForEach-Object { Write-Host "  lingering node pid $($_.ProcessId): $($_.CommandLine)" }
             if (-not $exited) { Stop-Process -Id $p.Id -Force }
           }