error[E0499]: cannot borrow `foo.bar1` as mutable more than once at a time --> $DIR/borrowck-reborrow-from-mut.rs:13:17 | LL | let _bar1 = &mut foo.bar1; | ------------- first mutable borrow occurs here LL | let _bar2 = &mut foo.bar1; | ^^^^^^^^^^^^^ second mutable borrow occurs here LL | use_mut(_bar1); | ----- first borrow later used here error[E0502]: cannot borrow `foo.bar1` as immutable because it is also borrowed as mutable --> $DIR/borrowck-reborrow-from-mut.rs:18:17 | LL | let _bar1 = &mut foo.bar1; | ------------- mutable borrow occurs here LL | let _bar2 = &foo.bar1; | ^^^^^^^^^ immutable borrow occurs here LL | use_mut(_bar1); | ----- mutable borrow later used here error[E0502]: cannot borrow `foo.bar1` as mutable because it is also borrowed as immutable --> $DIR/borrowck-reborrow-from-mut.rs:23:17 | LL | let _bar1 = &foo.bar1; | --------- immutable borrow occurs here LL | let _bar2 = &mut foo.bar1; | ^^^^^^^^^^^^^ mutable borrow occurs here LL | use_imm(_bar1); | ----- immutable borrow later used here error[E0499]: cannot borrow `foo.bar1` as mutable more than once at a time --> $DIR/borrowck-reborrow-from-mut.rs:45:21 | LL | let _bar1 = &mut foo.bar1; | ------------- first mutable borrow occurs here LL | match *foo { LL | Foo { bar1: ref mut _bar1, bar2: _ } => {} | ^^^^^^^^^^^^^ second mutable borrow occurs here ... LL | use_mut(_bar1); | ----- first borrow later used here error[E0502]: cannot borrow `foo.bar1` as immutable because it is also borrowed as mutable --> $DIR/borrowck-reborrow-from-mut.rs:52:17 | LL | let _bar1 = &mut foo.bar1.int1; | ------------------ mutable borrow occurs here LL | let _foo1 = &foo.bar1; | ^^^^^^^^^ immutable borrow occurs here LL | let _foo2 = &*foo; LL | use_mut(_bar1); | ----- mutable borrow later used here error[E0502]: cannot borrow `*foo` as immutable because it is also borrowed as mutable --> $DIR/borrowck-reborrow-from-mut.rs:53:17 | LL | let _bar1 = &mut foo.bar1.int1; | ------------------ mutable borrow occurs here LL | let _foo1 = &foo.bar1; LL | let _foo2 = &*foo; | ^^^^^ immutable borrow occurs here LL | use_mut(_bar1); | ----- mutable borrow later used here error[E0499]: cannot borrow `foo.bar1` as mutable more than once at a time --> $DIR/borrowck-reborrow-from-mut.rs:58:17 | LL | let _bar1 = &mut foo.bar1.int1; | ------------------ first mutable borrow occurs here LL | let _foo1 = &mut foo.bar1; | ^^^^^^^^^^^^^ second mutable borrow occurs here LL | use_mut(_bar1); | ----- first borrow later used here error[E0499]: cannot borrow `*foo` as mutable more than once at a time --> $DIR/borrowck-reborrow-from-mut.rs:63:17 | LL | let _bar1 = &mut foo.bar1.int1; | ------------------ first mutable borrow occurs here LL | let _foo2 = &mut *foo; | ^^^^^^^^^ second mutable borrow occurs here LL | use_mut(_bar1); | ----- first borrow later used here error[E0502]: cannot borrow `foo.bar1` as mutable because it is also borrowed as immutable --> $DIR/borrowck-reborrow-from-mut.rs:68:17 | LL | let _bar1 = &foo.bar1.int1; | -------------- immutable borrow occurs here LL | let _foo1 = &mut foo.bar1; | ^^^^^^^^^^^^^ mutable borrow occurs here LL | use_imm(_bar1); | ----- immutable borrow later used here error[E0502]: cannot borrow `*foo` as mutable because it is also borrowed as immutable --> $DIR/borrowck-reborrow-from-mut.rs:73:17 | LL | let _bar1 = &foo.bar1.int1; | -------------- immutable borrow occurs here LL | let _foo2 = &mut *foo; | ^^^^^^^^^ mutable borrow occurs here LL | use_imm(_bar1); | ----- immutable borrow later used here error[E0596]: cannot borrow `foo.bar1` as mutable, as it is behind a `&` reference --> $DIR/borrowck-reborrow-from-mut.rs:88:17 | LL | let _bar1 = &mut foo.bar1; | ^^^^^^^^^^^^^ `foo` 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 borrow_mut_from_imm(foo: &mut Foo) { | ~~~~~~~~ error: aborting due to 11 previous errors Some errors have detailed explanations: E0499, E0502, E0596. For more information about an error, try `rustc --explain E0499`.