#![feature(stmt_expr_attributes)] #![feature(custom_test_frameworks)] fn main() { let _ = #[cfg(FALSE)] (); //~^ ERROR removing an expression is not supported in this position let _ = 1 + 2 + #[cfg(FALSE)] 3; //~^ ERROR removing an expression is not supported in this position let _ = [1, 2, 3][#[cfg(FALSE)] 1]; //~^ ERROR removing an expression is not supported in this position }