How to convert from &[u8] to Vec<u8>?

I'm attempting to simply convert a slice to a vector. The following code:

let a = &[0u8];
let b: Vec = a.iter().collect();

fails with the following error message:

3 |     let b: Vec = a.iter().collect();
  |                               ^^^^^^^ a collection of type `std::vec::Vec` cannot be built from an iterator over elements of type `&u8`

What am I missing?

The iterator only returns references to the elements (here &u8). To get owned values (here u8), you can used .cloned().

let a: &[u8] = &[0u8];
let b: Vec = a.iter().cloned().collect();

Stack Overflow Q#47980023, score: 20