error[E0405]: cannot find trait `Oops` in this scope
  --> $DIR/issue-104513-ice.rs:3:19
   |
LL |     let _: S<impl Oops> = S;
   |                   ^^^^ not found in this scope

error[E0562]: `impl Trait` only allowed in function and inherent method return types, not in variable binding
  --> $DIR/issue-104513-ice.rs:3:14
   |
LL |     let _: S<impl Oops> = S;
   |              ^^^^^^^^^

error: aborting due to 2 previous errors

Some errors have detailed explanations: E0405, E0562.
For more information about an error, try `rustc --explain E0405`.