error: discriminant out of range for U4
 --> tests_error/enum_discriminants.rs:5:9
  |
5 |         A = 16,
  |         ^^^^^^

error: discriminant out of range for U5
  --> tests_error/enum_discriminants.rs:10:9
   |
10 |         B,
   |         ^

error: discriminant 0 used multiple times
  --> tests_error/enum_discriminants.rs:16:9
   |
16 |         X = 0,
   |         ^

error: unused discriminant(s): 1; consider specifying a `..` variant
  --> tests_error/enum_discriminants.rs:19:14
   |
19 |     pub enum MiddleGapWithoutPlaceholder: 2 {
   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unused discriminant(s): 3; consider specifying a `..` variant
  --> tests_error/enum_discriminants.rs:25:14
   |
25 |     pub enum EndGapWithoutPlaceholder: 2 {
   |              ^^^^^^^^^^^^^^^^^^^^^^^^

error: unused discriminant(s): 1, 2, 3; consider specifying a `..` variant
  --> tests_error/enum_discriminants.rs:31:14
   |
31 |     pub enum ThreeUnused: 2 {
   |              ^^^^^^^^^^^

error: unused discriminant(s): 4, 5, 6, ..; consider specifying a `..` variant
  --> tests_error/enum_discriminants.rs:35:14
   |
35 |     pub enum FourUnused: 3 {
   |              ^^^^^^^^^^

error: unused discriminant(s): 3, 4, 5, ..; consider specifying a `..` variant
  --> tests_error/enum_discriminants.rs:42:14
   |
42 |     pub enum FiveUnused: 3 {
   |              ^^^^^^^^^^