$ cargo check
Checking hello v0.1.0 (file:///projects/hello)
error[E0507]: cannot move out of `worker.thread` which is behind a mutable reference
- --> src/lib.rs:52:13
- |
-52 | worker.thread.join().unwrap();
- | ^^^^^^^^^^^^^ move occurs because `worker.thread` has type `JoinHandle<()>`, which does not implement the `Copy` trait
+ --> src/lib.rs:52:13
+ |
+52 | worker.thread.join().unwrap();
+ | ^^^^^^^^^^^^^ ------ `worker.thread` moved due to this method call
+ | |
+ | move occurs because `worker.thread` has type `JoinHandle<()>`, which does not implement the `Copy` trait
+ |
+note: this function takes ownership of the receiver `self`, which moves `worker.thread`
For more information about this error, try `rustc --explain E0507`.
error: could not compile `hello` due to previous error