ASP.NET Core HealthChecks报告RabbitMQ为假阴性

Question

使用此Enterprise HealthChecks for ASP.NET Core Diagnostics Package时，我遇到了一个问题，即HealtChecks告诉我我的端点不正常，而实际上一切正常。

我现在得到的错误消息（将Nuget软件包更新为5.5.2之后）是

[2019-07-17 11:25:16.147 +02:00 Error] 
[HealthChecks.UI.Core.HostedService.HealthCheckReportCollector] [] 
GetHealthReport threw an exception when trying to get report from 
http://url.domain/health configured with name {name}.

System.Net.Http.HttpRequestException: An error occurred while sending the 
request. ---> System.IO.IOException: Unable to read data from the transport 
connection: An existing connection was forcibly closed by the remote host. --- 
> System.Net.Sockets.SocketException: An existing connection was forcibly 
closed by the remote host

还有

[2019-07-17 11:25:16.482 +02:00 Error] 
[MassTransit.RabbitMqTransport.Transport.RabbitMqReceiveTransport] [] RabbitMQ 
Connect Failed: "Operation interrupted"

我的启动配置：

public void Configure(
            IApplicationBuilder app,
            IHostingEnvironment env)
        {
            app.UseHealthChecks("/health", new HealthCheckOptions
            {
                Predicate = check => true,
                ResponseWriter = UIResponseWriter.WriteHealthCheckUIResponse
            }).UseHealthChecksUI(setup =>
               {
                   setup.ApiPath = "/healthchecks-api";
                   setup.UIPath = "/healthchecks-ui";
               });

            app.UseMvc();
            OnServiceConfiguration(services);
        }

public override void OnServiceConfiguration(IServiceCollection services)
{
    services.AddMassTransit(x =>
            {
                x.AddConsumer<MailConsumer>();
                x.AddConsumer<MailFailedConsumer>();

                x.AddBus(provider => ConfigureBus(provider, 
                                                  rabbitMqConfigurations));
            });

    services.AddMassTransitHostedService();
}

private IBusControl ConfigureBus(
        IServiceProvider provider,
        RabbitMqSettings rabbitMqConfigurations) => 
             Bus.Factory.CreateUsingRabbitMq(
             cfg =>
             {
                 var host = cfg.Host(
                               rabbitMqConfigurations.Host,
                               "/",
                               hst => {
                                 hst.Username(rabbitMqConfigurations.Username);
                                 hst.Password(rabbitMqConfigurations.Password);
                               });

                               cfg.UseHealthCheck(provider);
                               cfg.ReceiveEndpoint(host, $"{typeof(MailSent).Namespace}.{typeof(MailSent).Name}", endpoint =>
                               {
                                   endpoint.Consumer<MailConsumer>(provider);
                               });

                               cfg.ReceiveEndpoint(host, $"{typeof(MailSentFailed).Namespace}.{typeof(MailSentFailed).Name}", endpoint =>
                               {
                                   endpoint.Consumer<MailFailedConsumer>(provider);
                               });
                            });

当我不使用消费者时，HealthCheck就可以了。端点有问题，但是什么呢？