error: array length must be an integer literal
 --> $DIR/array_len_expr.rs:4:28
  |
4 |         arraystr: [String; "13"],
  |                            ^^^^

error: unsupported expression, array length must be an integer literal
 --> $DIR/array_len_expr.rs:5:28
  |
5 |         arraysub: [String; 15 - 1],
  |                            ^^^^^^

error: array with zero size is not supported
 --> $DIR/array_len_expr.rs:6:20
  |
6 |         arrayzero: [String; 0],
  |                    ^^^^^^^^^^^