1error[E0277]: `F` cannot be shared between threads safely
2  --> $DIR/closure-bounds-subtype.rs:13:22
3   |
4LL |     take_const_owned(f);
5   |     ---------------- ^ `F` cannot be shared between threads safely
6   |     |
7   |     required by a bound introduced by this call
8   |
9note: required by a bound in `take_const_owned`
10  --> $DIR/closure-bounds-subtype.rs:4:50
11   |
12LL | fn take_const_owned<F>(_: F) where F: FnOnce() + Sync + Send {
13   |                                                  ^^^^ required by this bound in `take_const_owned`
14help: consider further restricting this bound
15   |
16LL | fn give_owned<F>(f: F) where F: FnOnce() + Send + std::marker::Sync {
17   |                                                 +++++++++++++++++++
18
19error: aborting due to previous error
20
21For more information about this error, try `rustc --explain E0277`.
22