extern crate adrop; use adrop::*; struct Test {} impl Drop for Test { fn drop(&mut self) { println!( "Dropping HasDrop! ThreadId: {:?}", std::thread::current().id() ); } } fn main() { println!("Main ThreadId: {:?}", std::thread::current().id()); adrop(Test {}); // Output: // Main ThreadId: ThreadId(1) // Dropping HasDrop! ThreadId: ThreadId(2) }