Function vm_outcome_located 

pub fn vm_outcome_located(source: &str) -> RunOutcome

vm_outcome, with a failed run’s error LOCATED (see locate_runtime_failure). Uses the plain Compiler::compile_with_oracle → Vm::run path directly (not page_host::drive_main’s page-driving split) — every failure-site fixture this lane’s tests drive is a single-turn action failure, which that plain path already covers exactly as vm_failure_site_lock.rs proves. A run is a fresh process: it starts with nothing stored.