error[E0208]: [+, +]
  --> $DIR/variance-trait-bounds.rs:16:1
   |
LL | struct TestStruct<U,T:Setter<U>> {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0208]: [*, +]
  --> $DIR/variance-trait-bounds.rs:21:1
   |
LL | enum TestEnum<U,T:Setter<U>> {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0208]: [*, +]
  --> $DIR/variance-trait-bounds.rs:26:1
   |
LL | struct TestContraStruct<U,T:Setter<U>> {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0208]: [*, +]
  --> $DIR/variance-trait-bounds.rs:31:1
   |
LL | struct TestBox<U,T:Getter<U>+Setter<U>> {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: aborting due to 4 previous errors