error[E0435]: attempt to use a non-constant value in a constant
  --> $DIR/type-dependent-def-issue-49241.rs:3:22
   |
LL |     const l: usize = v.count();
   |                      ^ non-constant value

error[E0080]: evaluation of constant value failed
  --> $DIR/type-dependent-def-issue-49241.rs:4:18
   |
LL |     let s: [u32; l] = v.into_iter().collect();
   |                  ^ referenced constant has errors

error[E0277]: a collection of type `[u32; _]` cannot be built from an iterator over elements of type `{integer}`
  --> $DIR/type-dependent-def-issue-49241.rs:4:37
   |
LL |     let s: [u32; l] = v.into_iter().collect();
   |                                     ^^^^^^^ a collection of type `[u32; _]` cannot be built from `std::iter::Iterator<Item={integer}>`
   |
   = help: the trait `std::iter::FromIterator<{integer}>` is not implemented for `[u32; _]`

error: aborting due to 3 previous errors

Some errors have detailed explanations: E0080, E0277, E0435.
For more information about an error, try `rustc --explain E0080`.