Fixed Spectre output in case output wasn't available (#3409)

Author: mrsharm

src/benchmarks/gc/GC.Infrastructure/GC.Infrastructure/Commands/GCPerfSim/GCPerfSimCommand.cs

@@ -181,7 +181,7 @@ internal static Dictionary<string, ProcessExecutionDetails> ExecuteLocally(GCPer
                             // Not checking Linux here since the local run only allows for Windows.
                             if (!File.Exists(Path.Combine(outputPath, traceName + ".etl.zip")))
                             {
-                                AnsiConsole.MarkupLine($"[yellow bold] ({DateTime.Now}) The trace for the run wasn't successfully captured. Please check the log file for more details: {output} Full run details: {Path.GetFileNameWithoutExtension(configuration.Name)}: {runInfo.CorerunDetails.Key} for {runInfo.RunDetails.Key} [/]");
+                                AnsiConsole.MarkupLine($"[yellow bold] ({DateTime.Now}) The trace for the run wasn't successfully captured. Please check the log file for more details: {Markup.Escape(output)} Full run details: {Path.GetFileNameWithoutExtension(configuration.Name)}: {runInfo.CorerunDetails.Key} for {runInfo.RunDetails.Key} [/]");
                             }
                         }