src/test/ui/traits/issue-87558.rs

   1 struct ErrorKind;
   2 struct Error(ErrorKind);
   3 impl Fn(&isize) for Error {
   4     //~^ ERROR manual implementations of `Fn` are experimental
   5     //~| ERROR associated type bindings are not allowed here
   6     fn from() {} //~ ERROR method `from` is not a member of trait `Fn`
   7 }
   8
   9 fn main() {}