error[E0505]: cannot move out of `y` because it is borrowed --> $DIR/send-is-not-static-std-sync.rs:13:10 | LL | let y = Box::new(1); | - binding `y` declared here LL | let lock = Mutex::new(&x); LL | *lock.lock().unwrap() = &*y; | --- borrow of `*y` occurs here LL | drop(y); | ^ move out of `y` occurs here ... LL | *lock.lock().unwrap() = &z; | ---- borrow later used here | help: consider cloning the value if the performance cost is acceptable | LL - *lock.lock().unwrap() = &*y; LL + *lock.lock().unwrap() = &y.clone(); | error[E0597]: `z` does not live long enough --> $DIR/send-is-not-static-std-sync.rs:16:33 | LL | let z = 2; | - binding `z` declared here LL | *lock.lock().unwrap() = &z; | ^^ borrowed value does not live long enough LL | } | - `z` dropped here while still borrowed LL | LL | lock.use_ref(); // (Mutex is #[may_dangle] so its dtor does not use `z` => needs explicit use) | ---- borrow later used here error[E0505]: cannot move out of `y` because it is borrowed --> $DIR/send-is-not-static-std-sync.rs:27:10 | LL | let y = Box::new(1); | - binding `y` declared here LL | let lock = RwLock::new(&x); LL | *lock.write().unwrap() = &*y; | --- borrow of `*y` occurs here LL | drop(y); | ^ move out of `y` occurs here ... LL | *lock.write().unwrap() = &z; | ---- borrow later used here | help: consider cloning the value if the performance cost is acceptable | LL - *lock.write().unwrap() = &*y; LL + *lock.write().unwrap() = &y.clone(); | error[E0597]: `z` does not live long enough --> $DIR/send-is-not-static-std-sync.rs:30:34 | LL | let z = 2; | - binding `z` declared here LL | *lock.write().unwrap() = &z; | ^^ borrowed value does not live long enough LL | } | - `z` dropped here while still borrowed LL | LL | lock.use_ref(); // (RwLock is #[may_dangle] so its dtor does not use `z` => needs explicit use) | ---- borrow later used here error[E0505]: cannot move out of `y` because it is borrowed --> $DIR/send-is-not-static-std-sync.rs:43:10 | LL | let y = Box::new(1); | - binding `y` declared here ... LL | tx.send(&*y); | --- borrow of `*y` occurs here LL | drop(y); | ^ move out of `y` occurs here ... LL | tx.send(&z).unwrap(); | -- borrow later used here | help: consider cloning the value if the performance cost is acceptable | LL - tx.send(&*y); LL + tx.send(&y.clone()); | error[E0597]: `z` does not live long enough --> $DIR/send-is-not-static-std-sync.rs:46:17 | LL | let z = 2; | - binding `z` declared here LL | tx.send(&z).unwrap(); | ^^ borrowed value does not live long enough LL | } | - `z` dropped here while still borrowed LL | LL | tx.use_ref(); // (channel drop glue does not use `z` => needs explicit use) | -- borrow later used here error: aborting due to 6 previous errors Some errors have detailed explanations: E0505, E0597. For more information about an error, try `rustc --explain E0505`.