RSRP-469164: Rider doesn't recognize Startup.cs and Controller's methods as used in a minimal ASP.NET Core application

App is perfectly operational, but Rider shows "Method is never used" warnings, see attached image.

<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>netcoreapp2.0</TargetFramework>
  </PropertyGroup>
  <ItemGroup>
    <PackageReference Include="Microsoft.AspNetCore.Mvc.Core" Version="2.0.0" />
    <PackageReference Include="Microsoft.AspNetCore.Server.Kestrel" Version="2.0.2" />
  </ItemGroup>
</Project>

using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.DependencyInjection;

namespace AspCoreTestApp
{
    class Program
    {
        static void Main(string[] args)
        { 
            new WebHostBuilder()
                .UseKestrel()
                .UseStartup<Startup>()
                .Build().Run();
        }
    }

    public class Startup
    {
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddMvcCore();
        }

        public void Configure(IApplicationBuilder app, IHostingEnvironment env)
        {            
            app.UseMvc();
        }
    }
    
    [Route("")]
    public class MyController : ControllerBase
    {
        [HttpGet("")]
        public object Test()
        {
            return new ContentResult
            {
                Content = "Hello world",
                ContentType = "text/plain"

            };
        }
    }
}