1error[E0107]: this trait takes 1 lifetime argument but 0 lifetime arguments were supplied 2 --> $DIR/unboxed-closure-sugar-region.rs:30:51 3 | 4LL | fn test2(x: &dyn Foo<(isize,),Output=()>, y: &dyn Foo(isize)) { 5 | ^^^ expected 1 lifetime argument 6 | 7note: trait defined here, with 1 lifetime parameter: `'a` 8 --> $DIR/unboxed-closure-sugar-region.rs:10:7 9 | 10LL | trait Foo<'a,T> { 11 | ^^^ -- 12 13error: aborting due to previous error 14 15For more information about this error, try `rustc --explain E0107`. 16