Incorrect compiler error for method with async/non-async delegate overloads

Program.cs

using System;
using System.Threading.Tasks;

class Program
{
    static void M(Func<Task<int>> f, int i)
    { }

    static void M(Func<int> f, int i)
    { }

    private static void Main()
    {
        M(() => 42, "");
        M(async () => 42, "");
    }
}