error[E0277]: the trait bound `[i32]: Index<u32>` is not satisfied
  --> $DIR/multiple-impls.rs:33:18
   |
LL |     fn index(&self, index: Idx) -> &Self::Output;
   |     --------------------------------------------- required by `Index::index`
...
LL |     Index::index(&[] as &[i32], 2u32);
   |                  ^^^^^^^^^^^^^ trait message
   |
   = help: the trait `Index<u32>` is not implemented for `[i32]`

error[E0277]: the trait bound `[i32]: Index<Foo<u32>>` is not satisfied
  --> $DIR/multiple-impls.rs:36:18
   |
LL |     fn index(&self, index: Idx) -> &Self::Output;
   |     --------------------------------------------- required by `Index::index`
...
LL |     Index::index(&[] as &[i32], Foo(2u32));
   |                  ^^^^^^^^^^^^^ on impl for Foo
   |
   = help: the trait `Index<Foo<u32>>` is not implemented for `[i32]`

error[E0277]: the trait bound `[i32]: Index<Bar<u32>>` is not satisfied
  --> $DIR/multiple-impls.rs:39:18
   |
LL |     fn index(&self, index: Idx) -> &Self::Output;
   |     --------------------------------------------- required by `Index::index`
...
LL |     Index::index(&[] as &[i32], Bar(2u32));
   |                  ^^^^^^^^^^^^^ on impl for Bar
   |
   = help: the trait `Index<Bar<u32>>` is not implemented for `[i32]`

error[E0277]: the trait bound `[i32]: Index<u32>` is not satisfied
  --> $DIR/multiple-impls.rs:33:5
   |
LL |     Index::index(&[] as &[i32], 2u32);
   |     ^^^^^^^^^^^^ trait message
   |
   = help: the trait `Index<u32>` is not implemented for `[i32]`

error[E0277]: the trait bound `[i32]: Index<Foo<u32>>` is not satisfied
  --> $DIR/multiple-impls.rs:36:5
   |
LL |     Index::index(&[] as &[i32], Foo(2u32));
   |     ^^^^^^^^^^^^ on impl for Foo
   |
   = help: the trait `Index<Foo<u32>>` is not implemented for `[i32]`

error[E0277]: the trait bound `[i32]: Index<Bar<u32>>` is not satisfied
  --> $DIR/multiple-impls.rs:39:5
   |
LL |     Index::index(&[] as &[i32], Bar(2u32));
   |     ^^^^^^^^^^^^ on impl for Bar
   |
   = help: the trait `Index<Bar<u32>>` is not implemented for `[i32]`

error: aborting due to 6 previous errors

For more information about this error, try `rustc --explain E0277`.