error[E0603]: struct `S` is private --> $DIR/issue-10545.rs:6:14 | LL | fn foo(_: a::S) { | ^ private struct | note: the struct `S` is defined here --> $DIR/issue-10545.rs:2:5 | LL | struct S; | ^^^^^^^^^ error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0603`.