//@ revisions: old next
//@[next] compile-flags: -Znext-solver
struct S;
impl From<()> for S {
fn from(x: ()) -> Self {
S
}
impl<I> From<I> for S
//~^ ERROR conflicting implementations of trait
where
I: Iterator<Item = ()>,
{
fn from(x: I) -> Self {
fn main() {}