error: Undefined Behavior: Data race detected between (1) non-atomic read on thread `unnamed-ID` and (2) deallocation on thread `main` at ALLOC
  --> tests/fail/data_race/stack_pop_race.rs:LL:CC
   |
LL |     race(0);
   |     ^^^^^^^ (2) just happened here
   |
help: and (1) occurred earlier here
  --> tests/fail/data_race/stack_pop_race.rs:LL:CC
   |
LL |         let _val = unsafe { *ptr.0 };
   |                             ^^^^^^
   = help: this indicates a bug in the program: it performed an invalid operation, and caused Undefined Behavior
   = help: see https://doc.rust-lang.org/nightly/reference/behavior-considered-undefined.html for further information
   = note: BACKTRACE (of the first span):
   = note: inside `main` at tests/fail/data_race/stack_pop_race.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