error[E0506]: cannot assign to `vec[_]` because it is borrowed --> $DIR/borrowck-vec-pattern-nesting.rs:9:13 | LL | [box ref _a, _, _] => { | ------ borrow of `vec[_]` occurs here LL | LL | vec[0] = Box::new(4); | ^^^^^^ assignment to borrowed `vec[_]` occurs here LL | LL | _a.use_ref(); | ------------ borrow later used here error[E0506]: cannot assign to `vec[_]` because it is borrowed --> $DIR/borrowck-vec-pattern-nesting.rs:23:13 | LL | &mut [ref _b @ ..] => { | ------ borrow of `vec[_]` occurs here LL | LL | vec[0] = Box::new(4); | ^^^^^^ assignment to borrowed `vec[_]` occurs here LL | LL | _b.use_ref(); | ------------ borrow later used here error[E0508]: cannot move out of type `[Box]`, a non-copy slice --> $DIR/borrowck-vec-pattern-nesting.rs:34:11 | LL | match vec { | ^^^ cannot move out of here ... LL | &mut [_a, | -- | | | data moved here | move occurs because `_a` has type `Box`, which does not implement the `Copy` trait | help: consider removing the `&mut` | LL ~ [_a, LL + LL + LL + LL + .. LL ~ ] => { | error[E0508]: cannot move out of type `[Box]`, a non-copy slice --> $DIR/borrowck-vec-pattern-nesting.rs:46:13 | LL | let a = vec[0]; | ^^^^^^ | | | cannot move out of here | move occurs because `vec[_]` has type `Box`, which does not implement the `Copy` trait | help: consider borrowing here: `&vec[0]` error[E0508]: cannot move out of type `[Box]`, a non-copy slice --> $DIR/borrowck-vec-pattern-nesting.rs:55:11 | LL | match vec { | ^^^ cannot move out of here ... LL | _b] => {} | -- | | | data moved here | move occurs because `_b` has type `Box`, which does not implement the `Copy` trait | help: consider removing the `&mut` | LL ~ [ LL + LL ~ _b] => {} | error[E0508]: cannot move out of type `[Box]`, a non-copy slice --> $DIR/borrowck-vec-pattern-nesting.rs:65:13 | LL | let a = vec[0]; | ^^^^^^ | | | cannot move out of here | move occurs because `vec[_]` has type `Box`, which does not implement the `Copy` trait | help: consider borrowing here: `&vec[0]` error[E0508]: cannot move out of type `[Box]`, a non-copy slice --> $DIR/borrowck-vec-pattern-nesting.rs:74:11 | LL | match vec { | ^^^ cannot move out of here ... LL | &mut [_a, _b, _c] => {} | ----------------- | | | | | | | | | ...and here | | | ...and here | | data moved here | help: consider removing the `&mut`: `[_a, _b, _c]` | = note: move occurs because these variables have types that don't implement the `Copy` trait error[E0508]: cannot move out of type `[Box]`, a non-copy slice --> $DIR/borrowck-vec-pattern-nesting.rs:85:13 | LL | let a = vec[0]; | ^^^^^^ | | | cannot move out of here | move occurs because `vec[_]` has type `Box`, which does not implement the `Copy` trait | help: consider borrowing here: `&vec[0]` error: aborting due to 8 previous errors Some errors have detailed explanations: E0506, E0508. For more information about an error, try `rustc --explain E0506`.