error: cannot move out of value because it is borrowed --> $DIR/borrowck-pat-at-and-box.rs:31:9 | LL | let ref a @ box b = Box::new(NC); | ^^^^^ - value is moved into `b` here | | | value is borrowed by `a` here error: cannot borrow value as mutable because it is also borrowed as immutable --> $DIR/borrowck-pat-at-and-box.rs:34:9 | LL | let ref a @ box ref mut b = Box::new(nc()); | ^^^^^ --------- value is mutably borrowed by `b` here | | | value is borrowed by `a` here error: cannot borrow value as mutable because it is also borrowed as immutable --> $DIR/borrowck-pat-at-and-box.rs:36:9 | LL | let ref a @ box ref mut b = Box::new(NC); | ^^^^^ --------- value is mutably borrowed by `b` here | | | value is borrowed by `a` here error: cannot borrow value as mutable because it is also borrowed as immutable --> $DIR/borrowck-pat-at-and-box.rs:38:9 | LL | let ref a @ box ref mut b = Box::new(NC); | ^^^^^ --------- value is mutably borrowed by `b` here | | | value is borrowed by `a` here error: cannot borrow value as mutable because it is also borrowed as immutable --> $DIR/borrowck-pat-at-and-box.rs:42:9 | LL | let ref a @ box ref mut b = Box::new(NC); | ^^^^^ --------- value is mutably borrowed by `b` here | | | value is borrowed by `a` here error: cannot borrow value as immutable because it is also borrowed as mutable --> $DIR/borrowck-pat-at-and-box.rs:48:9 | LL | let ref mut a @ box ref b = Box::new(NC); | ^^^^^^^^^ ----- value is borrowed by `b` here | | | value is mutably borrowed by `a` here error: cannot borrow value as immutable because it is also borrowed as mutable --> $DIR/borrowck-pat-at-and-box.rs:62:9 | LL | ref mut a @ box ref b => { | ^^^^^^^^^ ----- value is borrowed by `b` here | | | value is mutably borrowed by `a` here error[E0382]: borrow of moved value --> $DIR/borrowck-pat-at-and-box.rs:31:9 | LL | let ref a @ box b = Box::new(NC); | ^^^^^ - value moved here | | | value borrowed here after move | = note: move occurs because value has type `NC`, which does not implement the `Copy` trait help: borrow this binding in the pattern to avoid moving the value | LL | let ref a @ box ref b = Box::new(NC); | +++ error[E0502]: cannot borrow value as immutable because it is also borrowed as mutable --> $DIR/borrowck-pat-at-and-box.rs:38:9 | LL | let ref a @ box ref mut b = Box::new(NC); | ^^^^^ --------- mutable borrow occurs here | | | immutable borrow occurs here ... LL | *b = NC; | ------- mutable borrow later used here error[E0502]: cannot borrow value as immutable because it is also borrowed as mutable --> $DIR/borrowck-pat-at-and-box.rs:42:9 | LL | let ref a @ box ref mut b = Box::new(NC); | ^^^^^ --------- mutable borrow occurs here | | | immutable borrow occurs here ... LL | *b = NC; | ------- mutable borrow later used here error[E0502]: cannot borrow value as mutable because it is also borrowed as immutable --> $DIR/borrowck-pat-at-and-box.rs:48:9 | LL | let ref mut a @ box ref b = Box::new(NC); | ^^^^^^^^^ ----- immutable borrow occurs here | | | mutable borrow occurs here ... LL | drop(b); | - immutable borrow later used here error[E0502]: cannot borrow value as mutable because it is also borrowed as immutable --> $DIR/borrowck-pat-at-and-box.rs:62:9 | LL | ref mut a @ box ref b => { | ^^^^^^^^^ ----- immutable borrow occurs here | | | mutable borrow occurs here ... LL | drop(b); | - immutable borrow later used here error: cannot borrow value as immutable because it is also borrowed as mutable --> $DIR/borrowck-pat-at-and-box.rs:54:11 | LL | fn f5(ref mut a @ box ref b: Box) { | ^^^^^^^^^ ----- value is borrowed by `b` here | | | value is mutably borrowed by `a` here error[E0502]: cannot borrow value as mutable because it is also borrowed as immutable --> $DIR/borrowck-pat-at-and-box.rs:54:11 | LL | fn f5(ref mut a @ box ref b: Box) { | ^^^^^^^^^ ----- immutable borrow occurs here | | | mutable borrow occurs here ... LL | drop(b); | - immutable borrow later used here error: aborting due to 14 previous errors Some errors have detailed explanations: E0382, E0502. For more information about an error, try `rustc --explain E0382`.