error[E0599]: no method named `nya` found for type parameter `T` in the current scope --> $DIR/issue-103646.rs:6:7 | LL | fn uwu(c: T) { | - method `nya` not found for this type parameter LL | c.nya(); | --^^^-- | | | | | this is an associated function, not a method | help: use associated function syntax instead: `T::nya()` | = note: found the following associated functions; to be used as methods, functions must have a `self` parameter note: the candidate is defined in the trait `Cat` --> $DIR/issue-103646.rs:2:5 | LL | fn nya() {} | ^^^^^^^^ error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0599`.