1 error[E0121]: the placeholder `_` is not allowed within types on item signatures for constant items
2 --> $DIR/issue-75889.rs:3:24
4 LL | const FOO: dyn Fn() -> _ = "";
5 | ^ not allowed in type signatures
7 error[E0121]: the placeholder `_` is not allowed within types on item signatures for static items
8 --> $DIR/issue-75889.rs:4:25
10 LL | static BOO: dyn Fn() -> _ = "";
11 | ^ not allowed in type signatures
13 error: aborting due to 2 previous errors
15 For more information about this error, try `rustc --explain E0121`.