error: expected identifier, found keyword `const` | |
--> $DIR/opt-out-twice.rs:6:21 | |
| | |
LL | struct S<T: ?const ?const Tr>; | |
| ^^^^^ expected identifier, found keyword | |
error: expected one of `(`, `+`, `,`, `::`, `<`, `=`, or `>`, found `Tr` | |
--> $DIR/opt-out-twice.rs:6:27 | |
| | |
LL | struct S<T: ?const ?const Tr>; | |
| ^^ expected one of 7 possible tokens | |
error: aborting due to 2 previous errors | |