If uses_allocator_v<container_type, Alloc> is false the constructors in this subclause shall not participate in overload resolution.
template <class Alloc> explicit queue(const Alloc& a);
template <class Alloc> queue(const container_type& cont, const Alloc& a);
template <class Alloc> queue(container_type&& cont, const Alloc& a);
template <class Alloc> queue(const queue& q, const Alloc& a);
template <class Alloc> queue(queue&& q, const Alloc& a);