error: incorrect number of parameters for the `start` lang item
  --> $DIR/start_lang_item_args.rs:41:1
   |
LL | / fn start<T>(
LL | |
LL | |     _main: fn() -> T,
LL | |     _argc: isize,
...  |
LL | |     _extra_arg: (),
LL | | ) -> isize {
   | |__________^
   |
   = note: the `start` lang item should have four parameters, but found 5
   = note: the `start` lang item should have the signature `fn(fn() -> T, isize, *const *const u8, u8) -> isize`

error: aborting due to previous error