error[E0502]: cannot borrow `x` as immutable because it is also borrowed as mutable --> $DIR/closure-access-spans.rs:5:5 | LL | let r = &mut x; | ------ mutable borrow occurs here LL | || x; | ^^ - second borrow occurs due to use of `x` in closure | | | immutable borrow occurs here LL | r.use_mut(); | - mutable borrow later used here error[E0499]: cannot borrow `x` as mutable more than once at a time --> $DIR/closure-access-spans.rs:11:5 | LL | let r = &mut x; | ------ first mutable borrow occurs here LL | || x = 2; | ^^ - second borrow occurs due to use of `x` in closure | | | second mutable borrow occurs here LL | r.use_mut(); | - first borrow later used here error[E0500]: closure requires unique access to `x` but it is already borrowed --> $DIR/closure-access-spans.rs:17:5 | LL | let r = &mut x; | ------ borrow occurs here LL | || *x = 2; | ^^ -- second borrow occurs due to use of `x` in closure | | | closure construction occurs here LL | r.use_mut(); | - first borrow later used here error[E0503]: cannot use `x` because it was mutably borrowed --> $DIR/closure-access-spans.rs:23:13 | LL | let r = &mut x; | ------ `x` is borrowed here LL | move || x; | ^ use of borrowed `x` LL | r.use_ref(); | - borrow later used here error[E0505]: cannot move out of `x` because it is borrowed --> $DIR/closure-access-spans.rs:29:5 | LL | fn closure_move_capture_conflict(mut x: String) { | ----- binding `x` declared here LL | let r = &x; | -- borrow of `x` occurs here LL | || x; | ^^ - move occurs due to use in closure | | | move out of `x` occurs here LL | r.use_ref(); | - borrow later used here | help: consider cloning the value if the performance cost is acceptable | LL - let r = &x; LL + let r = x.clone(); | error[E0382]: borrow of moved value: `x` --> $DIR/closure-access-spans.rs:35:5 | LL | fn closure_imm_capture_moved(mut x: String) { | ----- move occurs because `x` has type `String`, which does not implement the `Copy` trait LL | let r = x; | - value moved here LL | || x.len(); | ^^ - borrow occurs due to use in closure | | | value borrowed here after move | help: consider cloning the value if the performance cost is acceptable | LL | let r = x.clone(); | ++++++++ error[E0382]: borrow of moved value: `x` --> $DIR/closure-access-spans.rs:40:5 | LL | fn closure_mut_capture_moved(mut x: String) { | ----- move occurs because `x` has type `String`, which does not implement the `Copy` trait LL | let r = x; | - value moved here LL | || x = String::new(); | ^^ - borrow occurs due to use in closure | | | value borrowed here after move | help: consider cloning the value if the performance cost is acceptable | LL | let r = x.clone(); | ++++++++ error[E0382]: borrow of moved value: `x` --> $DIR/closure-access-spans.rs:45:5 | LL | fn closure_unique_capture_moved(x: &mut String) { | - move occurs because `x` has type `&mut String`, which does not implement the `Copy` trait LL | let r = x; | - value moved here LL | || *x = String::new(); | ^^ -- borrow occurs due to use in closure | | | value borrowed here after move | help: consider cloning the value if the performance cost is acceptable | LL | let r = x.clone(); | ++++++++ error[E0382]: use of moved value: `x` --> $DIR/closure-access-spans.rs:50:5 | LL | fn closure_move_capture_moved(x: &mut String) { | - move occurs because `x` has type `&mut String`, which does not implement the `Copy` trait LL | let r = x; | - value moved here LL | || x; | ^^ - use occurs due to use in closure | | | value used here after move | help: consider cloning the value if the performance cost is acceptable | LL | let r = x.clone(); | ++++++++ error: aborting due to 9 previous errors Some errors have detailed explanations: E0382, E0499, E0500, E0502, E0503, E0505. For more information about an error, try `rustc --explain E0382`.