info: Host.Triggers.Warmup[0]
      Initializing Warmup Extension.
info: Host.Startup[503]
      Initializing Host. OperationId: 'e507775b-8f3b-4bf5-becc-cd4a3c10e232'.
info: Host.Startup[504]
      Host initialization: ConsecutiveErrors=0, StartupCount=1, OperationId=e507775b-8f3b-4bf5-becc-cd4a3c10e232
info: Microsoft.Azure.WebJobs.Hosting.OptionsLoggingService[0]
      LoggerFilterOptions
      {
        "MinLevel": "None",
        "Rules": [
          {
            "ProviderName": null,
            "CategoryName": null,
            "LogLevel": null,
            "Filter": "<AddFilter>b__0"
          },
          {
            "ProviderName": "Microsoft.Azure.WebJobs.Script.WebHost.Diagnostics.SystemLoggerProvider",
            "CategoryName": null,
            "LogLevel": "None",
            "Filter": null
          },
          {
            "ProviderName": "Microsoft.Azure.WebJobs.Script.WebHost.Diagnostics.SystemLoggerProvider",
            "CategoryName": null,
            "LogLevel": null,
            "Filter": "<AddFilter>b__0"
          }
        ]
      }
info: Microsoft.Azure.WebJobs.Hosting.OptionsLoggingService[0]
      ConcurrencyOptions
      {
        "DynamicConcurrencyEnabled": false,
        "MaximumFunctionConcurrency": 500,
        "CPUThreshold": 0.8,
        "SnapshotPersistenceEnabled": true
      }
info: Microsoft.Azure.WebJobs.Hosting.OptionsLoggingService[0]
      FunctionResultAggregatorOptions
      {
        "BatchSize": 1000,
        "FlushTimeout": "00:00:30",
        "IsEnabled": true
      }
info: Microsoft.Azure.WebJobs.Hosting.OptionsLoggingService[0]
      SingletonOptions
      {
        "LockPeriod": "00:00:15",
        "ListenerLockPeriod": "00:01:00",
        "LockAcquisitionTimeout": "10675199.02:48:05.4775807",
        "LockAcquisitionPollingInterval": "00:00:05",
        "ListenerLockRecoveryPollingInterval": "00:01:00"
      }
info: Microsoft.Azure.WebJobs.Hosting.JobHostService[0]
      Starting JobHost
info: Host.Startup[401]
      Starting Host (HostId=ff3b5b3e28e1-2137340777, InstanceId=d0d85d60-3810-47cb-8f85-383073f5d9a9, Version=3.2.0.0, ProcessId=1, AppDomainId=1, InDebugMode=False, InDiagnosticMode=False, FunctionsExtensionVersion=(null))
info: Host.Startup[314]
      Loading functions metadata
info: Host.Startup[315]
      1 functions loaded
fail: Worker.HttpWorkerProcess.bbbfc2f8-34a3-4a6b-89d9-8a537071af94[0]
      Failed to start Worker Channel. Process fileName: Rscript
System.ComponentModel.Win32Exception (2): No such file or directory
   at System.Diagnostics.Process.ForkAndExecProcess(String filename, String[] argv, String[] envp, String cwd, Boolean redirectStdin, Boolean redirectStdout, Boolean redirectStderr, Boolean setCredentials, UInt32 userId, UInt32 groupId, UInt32[] groups, Int32& stdinFd, Int32& stdoutFd, Int32& stderrFd, Boolean usesTerminal, Boolean throwOnNoExec)
   at System.Diagnostics.Process.StartCore(ProcessStartInfo startInfo)
   at System.Diagnostics.Process.Start()
   at Microsoft.Azure.WebJobs.Script.Workers.WorkerProcess.StartProcessAsync() in /src/azure-functions-host/src/WebJobs.Script/Workers/ProcessManagement/WorkerProcess.cs:line 65
info: Host.Startup[0]
      Generating 1 job function(s)
info: Host.Startup[0]
      Found the following functions:
      Host.Functions.hello
      
info: Microsoft.Azure.WebJobs.Hosting.OptionsLoggingService[0]
      HttpOptions
      {
        "DynamicThrottlesEnabled": false,
        "EnableChunkedRequestBinding": false,
        "MaxConcurrentRequests": -1,
        "MaxOutstandingRequests": -1,
        "RoutePrefix": "api"
      }
info: Microsoft.Azure.WebJobs.Script.WebHost.WebScriptHostHttpRoutesManager[0]
      Initializing function HTTP routes
      Mapped function route 'api/hello' [get,post] to 'hello'
      
info: Host.Startup[412]
      Host initialized (67ms)
info: Host.Startup[413]
      Host started (78ms)
info: Host.Startup[0]
      Job host started
Hosting environment: Production
Content root path: /
Now listening on: http://[::]:80
Application started. Press Ctrl+C to shut down.
info: Host.General[337]
      Host lock lease acquired by instance ID '0000000000000000000000005CEFB9B7'.