1 error: cannot find derive macro `Sync` in this scope
2 --> $DIR/issue-33571.rs:2:10
7 note: unsafe traits like `Sync` should be implemented explicitly
8 --> $DIR/issue-33571.rs:2:10
13 error: cannot find derive macro `Sync` in this scope
14 --> $DIR/issue-33571.rs:2:10
19 note: unsafe traits like `Sync` should be implemented explicitly
20 --> $DIR/issue-33571.rs:2:10
25 error: aborting due to 2 previous errors