error: [+, o, o]
  --> $DIR/variance-types.rs:10:1
   |
LL | struct InvariantMut<'a,A:'a,B:'a> {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: [o]
  --> $DIR/variance-types.rs:15:1
   |
LL | struct InvariantCell<A> {
   | ^^^^^^^^^^^^^^^^^^^^^^^

error: [o]
  --> $DIR/variance-types.rs:20:1
   |
LL | struct InvariantIndirect<A> {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: [+]
  --> $DIR/variance-types.rs:25:1
   |
LL | struct Covariant<A> {
   | ^^^^^^^^^^^^^^^^^^^

error: [-]
  --> $DIR/variance-types.rs:30:1
   |
LL | struct Contravariant<A> {
   | ^^^^^^^^^^^^^^^^^^^^^^^

error: [+, -, o]
  --> $DIR/variance-types.rs:35:1
   |
LL | enum Enum<A,B,C> {
   | ^^^^^^^^^^^^^^^^

error: aborting due to 6 previous errors