| ^^^^
= 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: BACKTRACE (of the first span):
= note: inside closure at $DIR/read_write_race.rs:LL:CC
note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace