1 error[E0618]: expected function, found `U`
2 --> $DIR/issue-21701.rs:12:13
9 error[E0618]: expected function, found `Bar`
10 --> $DIR/issue-21701.rs:19:13
13 | ----------- `Bar` defined here
16 | ^^^^^ not a function
18 error: aborting due to 2 previous errors
20 For more information about this error, try `rustc --explain E0618`.