error[E0061]: this function takes 1 argument but 2 arguments were supplied
  --> $DIR/remove-extra-argument.rs:6:5
   |
LL |     l(vec![], vec![])
   |     ^         ------ argument of type `Vec<_>` unexpected
   |
note: function defined here
  --> $DIR/remove-extra-argument.rs:3:4
   |
LL | fn l(_a: Vec<u8>) {}
   |    ^ -----------
help: remove the extra argument
   |
LL |     l(vec![])
   |

error: aborting due to previous error

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