1error[E0412]: cannot find type `err` in this scope 2 --> $DIR/extern-fn-arg-names.rs:2:29 3 | 4LL | fn dstfn(src: i32, dst: err); 5 | ^^^ not found in this scope 6 7error[E0061]: this function takes 2 arguments but 1 argument was supplied 8 --> $DIR/extern-fn-arg-names.rs:7:5 9 | 10LL | dstfn(1); 11 | ^^^^^--- an argument is missing 12 | 13note: function defined here 14 --> $DIR/extern-fn-arg-names.rs:2:8 15 | 16LL | fn dstfn(src: i32, dst: err); 17 | ^^^^^ 18help: provide the argument 19 | 20LL | dstfn(1, /* dst */); 21 | ~~~~~~~~~~~~~~ 22 23error: aborting due to 2 previous errors 24 25Some errors have detailed explanations: E0061, E0412. 26For more information about an error, try `rustc --explain E0061`. 27