C++20 source_location template non-type parameter

Question

I was trying to figure out ways to use std::source_location::current(), when I stumbled upon this particular answer for a thread.

I tried running the code on godbolt with x86-64 gcc 13.1 and -O3 -std=c++20 -Wall -Wextra -Wpedantic, but it doesn't even compile.

Code:

#include <format>
#include <iostream>
#include <source_location>

template<typename... Targs, auto location = std::source_location::current()>
auto tprintf(char const* format, Targs const&... args) -> void {
    std::cout
        << std::format("{}:{}: ", location.file_name(), location.line())
        << std::format(format, args...);
}

auto main() -> int {
    tprintf("hello {}", "world"); // prints "example.cpp:12: hello world"
}

Am I doing something wrong? If not, why was this even accepted as an answer if it doesn't compile?