1 error[E0283]: type annotations needed: cannot satisfy `T: FnMut<(&'a (),)>`
2 --> $DIR/issue-85735.rs:7:8
7 note: multiple `impl`s or `where` clauses satisfying `T: FnMut<(&'a (),)>` found
8 --> $DIR/issue-85735.rs:7:8
10 LL | T: FnMut(&'a ()),
13 LL | T: FnMut(&'b ()),
16 error: aborting due to previous error
18 For more information about this error, try `rustc --explain E0283`.