error[E0277]: the trait bound `S: std::clone::Clone` is not satisfied in `[closure@$DIR/not-clone-closure.rs:7:17: 9:6 a:S]` --> $DIR/not-clone-closure.rs:11:23 | LL | let hello = hello.clone(); //~ ERROR the trait bound `S: std::clone::Clone` is not satisfied | ^^^^^ within `[closure@$DIR/not-clone-closure.rs:7:17: 9:6 a:S]`, the trait `std::clone::Clone` is not implemented for `S` | = note: required because it appears within the type `[closure@$DIR/not-clone-closure.rs:7:17: 9:6 a:S]` error: aborting due to previous error For more information about this error, try `rustc --explain E0277`.