error[E0271]: type mismatch resolving `::T == i64` --> $DIR/check-trait-object-bounds-6.rs:20:5 | LL | is_obj(x) | ^^^^^^ type mismatch resolving `::T == i64` | note: expected this to be `i64` --> $DIR/check-trait-object-bounds-6.rs:9:14 | LL | type T = U; | ^ note: required by a bound in `is_obj` --> $DIR/check-trait-object-bounds-6.rs:17:23 | LL | fn is_obj(_: &T) {} | ^^^ required by this bound in `is_obj` error: aborting due to previous error For more information about this error, try `rustc --explain E0271`.