src/test/ui/codemap_tests/empty_span.stderr

   1 error[E0321]: cross-crate traits with a default impl, like `std::marker::Send`, can only be implemented for a struct/enum type, not `&'static main::Foo`
   2   --> $DIR/empty_span.rs:18:5
   3    |
   4 18 |     unsafe impl Send for &'static Foo { }
   5    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   6
   7 error: aborting due to previous error
   8