1 error[E0308]: mismatched types
2 --> $DIR/issue-48838.rs:12:14
4 LL | Square = |x| x, //~ ERROR mismatched types
5 | ^^^^^ expected isize, found closure
7 = note: expected type `isize`
8 found type `[closure@$DIR/issue-48838.rs:12:14: 12:19]`
10 error: aborting due to previous error
12 For more information about this error, try `rustc --explain E0308`.