| The value of statics and constants must be known at compile time, and they live | |
| for the entire lifetime of a program. Creating a boxed value allocates memory on | |
| the heap at runtime, and therefore cannot be done at compile time. | |
| Erroneous code example: | |
| ```compile_fail,E0010 | |
| const CON : Vec<i32> = vec![1, 2, 3]; | |
| ``` |