error: Undefined Behavior: Data race detected between Deallocate on thread `main` and Read on thread `<unnamed>` at ALLOC
  --> $DIR/stack_pop_race.rs:LL:CC
   |
LL | }
   |  ^ Data race detected between Deallocate on thread `main` and Read on thread `<unnamed>` at ALLOC
   |
   = 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:
   = note: inside `race` at $DIR/stack_pop_race.rs:LL:CC
note: inside `main` at $DIR/stack_pop_race.rs:LL:CC
  --> $DIR/stack_pop_race.rs:LL:CC
   |
LL |     race(0);
   |     ^^^^^^^

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

error: aborting due to previous error