error[E0109]: type arguments are not allowed on builtin type `u32` --> $DIR/E0109.rs:1:14 | LL | type X = u32; | --- ^^^ type argument not allowed | | | not allowed on builtin type `u32` | help: primitive type `u32` doesn't have generic parameters | LL - type X = u32; LL + type X = u32; | error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0109`.