error[E0277]: `T` cannot be shared between threads safely
  --> $DIR/two-traits.rs:11:5
   |
LL |     type X: Trait;
   |             ----- required by this bound in `Magic::X`
...
LL |     type X = Self;
   |     ^^^^^^^^^^^^^^ `T` cannot be shared between threads safely
   |
help: consider further restricting this bound
   |
LL | impl<T: Magic + Sync> Magic for T {
   |               ^^^^^^

error[E0275]: overflow evaluating the requirement `*mut (): Magic`
  --> $DIR/two-traits.rs:20:5
   |
LL | fn wizard<T: Magic>() { check::<<T as Magic>::X>(); }
   |              ----- required by this bound in `wizard`
...
LL |     wizard::<*mut ()>();
   |     ^^^^^^^^^^^^^^^^^

error: aborting due to 2 previous errors

Some errors have detailed explanations: E0275, E0277.
For more information about an error, try `rustc --explain E0275`.