error[E0283]: type annotations needed
  --> $DIR/issue-80816.rs:50:38
   |
LL |     let guard: Guard<Arc<usize>> = s.load();
   |                                      ^^^^
   |
note: multiple `impl`s satisfying `ArcSwapAny<Arc<usize>>: Access<_>` found
  --> $DIR/issue-80816.rs:36:1
   |
LL | impl<T> Access<T> for ArcSwapAny<T> {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
...
LL | impl<T> Access<T> for ArcSwapAny<Arc<T>> {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: required for `Arc<ArcSwapAny<Arc<usize>>>` to implement `Access<_>`
  --> $DIR/issue-80816.rs:31:45
   |
LL | impl<T, A: Access<T>, P: Deref<Target = A>> Access<T> for P {
   |            ---------                        ^^^^^^^^^     ^
   |            |
   |            unsatisfied trait bound introduced here
help: try using a fully qualified path to specify the expected types
   |
LL |     let guard: Guard<Arc<usize>> = <Arc<ArcSwapAny<Arc<usize>>> as Access<T>>::load(&s);
   |                                    ++++++++++++++++++++++++++++++++++++++++++++++++++ ~

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0283`.