error: unsupported operation: can't call foreign function `not_exported` on $OS
  --> tests/native-lib/fail/private_function.rs:LL:CC
   |
LL |         not_exported();
   |         ^^^^^^^^^^^^^^ unsupported operation occurred here
   |
   = help: this means the program tried to do something Miri does not support; it does not indicate a bug in the program
   = note: BACKTRACE:
   = note: inside `main` at tests/native-lib/fail/private_function.rs:LL:CC

note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace

error: aborting due to 1 previous error