error: generic parameters with a default must be trailing --> $DIR/params-in-ct-in-ty-param-lazy-norm.rs:8:12 | LL | struct Bar(T); | ^ error[E0128]: generic parameters with a default cannot use forward declared identifiers --> $DIR/params-in-ct-in-ty-param-lazy-norm.rs:8:21 | LL | struct Bar(T); | ^ defaulted generic parameters cannot be forward declared error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0128`.