this example crashes the conversion:
void f() { auto lambda = [](auto container) { for(auto test : container) { } }; }

also with a template instantiation:
`#include
void f() {
auto lambda = [](auto container) {
for(auto test : container) { }
};

std::vector vec{1,2,3,4};
lambda(vec);
}`

[0x13449ff] ... [0x4055aa] Segmentation fault (core dumped)