error: `Inner` is forbidden as the type of a const generic parameter --> $DIR/issue-74950.rs:19:23 | LL | struct Outer; | ^^^^^ | = note: the only supported types are integers, `bool` and `char` help: add `#![feature(adt_const_params)]` to the crate attributes to enable more complex and user defined types | LL + #![feature(adt_const_params)] | error: `Inner` is forbidden as the type of a const generic parameter --> $DIR/issue-74950.rs:19:23 | LL | struct Outer; | ^^^^^ | = note: the only supported types are integers, `bool` and `char` = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` help: add `#![feature(adt_const_params)]` to the crate attributes to enable more complex and user defined types | LL + #![feature(adt_const_params)] | error: `Inner` is forbidden as the type of a const generic parameter --> $DIR/issue-74950.rs:19:23 | LL | struct Outer; | ^^^^^ | = note: the only supported types are integers, `bool` and `char` = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` help: add `#![feature(adt_const_params)]` to the crate attributes to enable more complex and user defined types | LL + #![feature(adt_const_params)] | error: `Inner` is forbidden as the type of a const generic parameter --> $DIR/issue-74950.rs:19:23 | LL | struct Outer; | ^^^^^ | = note: the only supported types are integers, `bool` and `char` = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` help: add `#![feature(adt_const_params)]` to the crate attributes to enable more complex and user defined types | LL + #![feature(adt_const_params)] | error: aborting due to 4 previous errors