error[E0061]: this function takes 2 arguments but 1 argument was supplied
  --> $DIR/E0061.rs:6:5
   |
LL |     f(0);
   |     ^--- an argument of type `&str` is missing
   |
note: function defined here
  --> $DIR/E0061.rs:1:4
   |
LL | fn f(a: u16, b: &str) {}
   |    ^ ------  -------
help: provide the argument
   |
LL |     f(0, /* &str */);
   |      ~~~~~~~~~~~~~~~

error[E0061]: this function takes 1 argument but 0 arguments were supplied
  --> $DIR/E0061.rs:9:5
   |
LL |     f2();
   |     ^^-- an argument of type `u16` is missing
   |
note: function defined here
  --> $DIR/E0061.rs:3:4
   |
LL | fn f2(a: u16) {}
   |    ^^ ------
help: provide the argument
   |
LL |     f2(/* u16 */);
   |       ~~~~~~~~~~~

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0061`.