MSVC list initialization ICE when used with structs?

This piece of code compiles well on gcc 8.1 and clang 6.0, but gives ICE on MSVC (both 2017 and 2018 pre-release):

#include <vector>
#include <string>

struct Data {
    unsigned char data;
};

struct A {
    std::string x;
    Data y{255};
};

void f(std::vector<A> arg) {
}

int main() {
    f(std::vector<A>Test);
}

Clearly, I've run into yet another MSVC compiler bug.

But to be really sure: Does the above code conform to standard C++, or have I made an error as well?