| error[E0121]: the placeholder `_` is not allowed within types on item signatures for statics | |
| --> $DIR/issue-74086.rs:2:20 | |
| | | |
| LL | static BUG: fn(_) -> u8 = |_| 8; | |
| | ^ not allowed in type signatures | |
| error: aborting due to 1 previous error | |
| For more information about this error, try `rustc --explain E0121`. |