Rust 如何使用数组填充特征对象向量

为什么下面的代码是错误的？有一个从[T; N]到Vec<T>的全面实现，那么在这个上下文中，为什么dyn Foo不匹配Fooable呢？有没有不涉及克隆Fooable的变通办法？

trait Foo {}

struct Fooable {}

impl Foo for Fooable {}

pub fn main() {
    let bar: Vec<Box<dyn Foo>> = [
        Box::new(Fooable {}),
    ].into();
}

错误:

error[E0277]: the trait bound `Vec<Box<dyn Foo>>: From<[Box<Fooable>; 1]>` is not satisfied
  --> src/main.rs:10:7
   |
10 |     ].into();
   |       ^^^^ the trait `From<[Box<Fooable>; 1]>` is not implemented for `Vec<Box<dyn Foo>>`
   |
   = help: the following other types implement trait `From<T>`:
             <Vec<T, A> as From<Box<[T], A>>>
             <Vec<T, A> as From<VecDeque<T, A>>>
             <Vec<T> as From<&[T]>>
             <Vec<T> as From<&mut [T]>>
             <Vec<T> as From<BinaryHeap<T>>>
             <Vec<T> as From<Cow<'a, [T]>>>
             <Vec<T> as From<[T; N]>>
             <Vec<u8> as From<&str>>
           and 2 others
   = note: required because of the requirements on the impl of `Into<Vec<Box<dyn Foo>>>` for `[Box<Fooable>; 1]`

Playground个