error[E0277]: the trait bound `S: std::clone::Clone` is not satisfied in `[closure@$DIR/not-clone-closure.rs:17:17: 19:6 a:S]`
  --> $DIR/not-clone-closure.rs:21:23
   |
LL |     let hello = hello.clone(); //~ ERROR the trait bound `S: std::clone::Clone` is not satisfied
   |                       ^^^^^ within `[closure@$DIR/not-clone-closure.rs:17:17: 19:6 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:17:17: 19:6 a:S]`

error: aborting due to previous error

For more information about this error, try `rustc --explain E0277`.