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+An invalid number of arguments was passed when calling a function.
+
+Erroneous code example:
+
+```compile_fail,E0061
+fn f(u: i32) {}
+
+f(); // error!
+```
+
+The number of arguments passed to a function must match the number of arguments
+specified in the function signature.
+
+For example, a function like:
+
+```
+fn f(a: u16, b: &str) {}
+```
+
+Must always be called with exactly two arguments, e.g., `f(2, "test")`.
+
+Note that Rust does not have a notion of optional function arguments or
+variadic functions (except for its C-FFI).