1 error[E0121]: the placeholder `_` is not allowed within types on item signatures for functions
2 --> $DIR/issue-81885.rs:1:22
4 LL | const TEST4: fn() -> _ = 42;
5 | ^ not allowed in type signatures
7 error[E0121]: the placeholder `_` is not allowed within types on item signatures for constant items
8 --> $DIR/issue-81885.rs:1:22
10 LL | const TEST4: fn() -> _ = 42;
11 | ^ not allowed in type signatures
13 error[E0121]: the placeholder `_` is not allowed within types on item signatures for functions
14 --> $DIR/issue-81885.rs:6:26
16 LL | const TEST5: fn() -> _ = 42;
17 | ^ not allowed in type signatures
19 error[E0121]: the placeholder `_` is not allowed within types on item signatures for constant items
20 --> $DIR/issue-81885.rs:6:26
22 LL | const TEST5: fn() -> _ = 42;
23 | ^ not allowed in type signatures
25 error: aborting due to 4 previous errors
27 For more information about this error, try `rustc --explain E0121`.