error[E0308]: mismatched types
  --> tests/fail/miri_start_wrong_sig.rs:LL:CC
   |
LL | fn miri_start() -> isize {
   | ^^^^^^^^^^^^^^^^^^^^^^^^ incorrect number of function parameters
   |
   = note: expected signature `fn(isize, *const *const u8) -> _`
              found signature `fn() -> _`

error: `miri_start` must have the following signature:
       fn miri_start(argc: isize, argv: *const *const u8) -> isize

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0308`.