1 error: trait methods cannot be stable const fn
2 --> $DIR/stability.rs:13:5
4 LL | / fn sub(self, rhs: Self) -> Self {
6 LL | | Int(self.0 - rhs.0)
10 error: `<Int as Add>::add` is not yet stable as a const fn
11 --> $DIR/stability.rs:31:5
13 LL | Int(1i32) + Int(2i32)
14 | ^^^^^^^^^^^^^^^^^^^^^
16 = help: const-stable functions can only call other const-stable functions
18 error: aborting due to 2 previous errors