error[E0596]: cannot borrow `x` as mutable, as it is not declared as mutable --> $DIR/borrowck-borrow-overloaded-auto-deref-mut.rs:53:24 | LL | let __isize = &mut x.y; | ^ cannot borrow as mutable | help: consider changing this to be mutable | LL | fn deref_mut_field1(mut x: Own) { | +++ error[E0596]: cannot borrow `*x` as mutable, as it is behind a `&` reference --> $DIR/borrowck-borrow-overloaded-auto-deref-mut.rs:65:10 | LL | &mut x.y | ^ `x` is a `&` reference, so the data it refers to cannot be borrowed as mutable | help: consider changing this to be a mutable reference | LL | fn deref_extend_mut_field1(x: &mut Own) -> &mut isize { | +++ error[E0499]: cannot borrow `*x` as mutable more than once at a time --> $DIR/borrowck-borrow-overloaded-auto-deref-mut.rs:78:19 | LL | let _x = &mut x.x; | - first mutable borrow occurs here LL | let _y = &mut x.y; | ^ second mutable borrow occurs here LL | use_mut(_x); | -- first borrow later used here error[E0596]: cannot borrow `x` as mutable, as it is not declared as mutable --> $DIR/borrowck-borrow-overloaded-auto-deref-mut.rs:88:5 | LL | x.y = 3; | ^ cannot borrow as mutable | help: consider changing this to be mutable | LL | fn assign_field1<'a>(mut x: Own) { | +++ error[E0596]: cannot borrow `*x` as mutable, as it is behind a `&` reference --> $DIR/borrowck-borrow-overloaded-auto-deref-mut.rs:92:5 | LL | x.y = 3; | ^ `x` is a `&` reference, so the data it refers to cannot be borrowed as mutable | help: consider changing this to be a mutable reference | LL | fn assign_field2<'a>(x: &'a mut Own) { | +++ error[E0499]: cannot borrow `*x` as mutable more than once at a time --> $DIR/borrowck-borrow-overloaded-auto-deref-mut.rs:101:5 | LL | let _p: &mut Point = &mut **x; | -- first mutable borrow occurs here LL | x.y = 3; | ^ second mutable borrow occurs here LL | use_mut(_p); | -- first borrow later used here error[E0596]: cannot borrow `x` as mutable, as it is not declared as mutable --> $DIR/borrowck-borrow-overloaded-auto-deref-mut.rs:109:5 | LL | x.set(0, 0); | ^ cannot borrow as mutable | help: consider changing this to be mutable | LL | fn deref_mut_method1(mut x: Own) { | +++ error[E0596]: cannot borrow `*x` as mutable, as it is behind a `&` reference --> $DIR/borrowck-borrow-overloaded-auto-deref-mut.rs:121:5 | LL | x.y_mut() | ^ `x` is a `&` reference, so the data it refers to cannot be borrowed as mutable | help: consider changing this to be a mutable reference | LL | fn deref_extend_mut_method1(x: &mut Own) -> &mut isize { | +++ error[E0596]: cannot borrow `x` as mutable, as it is not declared as mutable --> $DIR/borrowck-borrow-overloaded-auto-deref-mut.rs:129:6 | LL | *x.y_mut() = 3; | ^ cannot borrow as mutable | help: consider changing this to be mutable | LL | fn assign_method1<'a>(mut x: Own) { | +++ error[E0596]: cannot borrow `*x` as mutable, as it is behind a `&` reference --> $DIR/borrowck-borrow-overloaded-auto-deref-mut.rs:133:6 | LL | *x.y_mut() = 3; | ^ `x` is a `&` reference, so the data it refers to cannot be borrowed as mutable | help: consider changing this to be a mutable reference | LL | fn assign_method2<'a>(x: &'a mut Own) { | +++ error: aborting due to 10 previous errors Some errors have detailed explanations: E0499, E0596. For more information about an error, try `rustc --explain E0499`.