error: concrete type differs from previous defining opaque type use
  --> $DIR/multiple-def-uses-in-one-fn-lifetimes.rs:10:5
   |
LL |     (i, i)
   |     ^^^^^^
   |     |
   |     expected `&'a i32`, got `&'b i32`
   |     this expression supplies two conflicting concrete types for the same opaque type

error: aborting due to previous error