rust/src/test/ui/borrowck/borrowck-anon-fields-struct.nll.stderr

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2018-08-08 07:28:26 -05:00
error[E0502]: cannot borrow `y` as immutable because it is also borrowed as mutable
--> $DIR/borrowck-anon-fields-struct.rs:23:19
|
LL | Y(ref mut a, _) => a
| --------- mutable borrow occurs here
...
LL | let b = match y {
| ^ immutable borrow occurs here
...
LL | *a += 1;
| ------- borrow later used here
error[E0502]: cannot borrow `y` as immutable because it is also borrowed as mutable
--> $DIR/borrowck-anon-fields-struct.rs:38:19
|
LL | Y(ref mut a, _) => a
| --------- mutable borrow occurs here
...
LL | let b = match y {
| ^ immutable borrow occurs here
...
LL | *a += 1;
| ------- borrow later used here
error[E0499]: cannot borrow `y.0` as mutable more than once at a time
--> $DIR/borrowck-anon-fields-struct.rs:39:11
|
LL | Y(ref mut a, _) => a
| --------- first mutable borrow occurs here
...
LL | Y(ref mut b, _) => b //~ ERROR cannot borrow
| ^^^^^^^^^ second mutable borrow occurs here
...
LL | *a += 1;
| ------- borrow later used here
error: aborting due to 3 previous errors
Some errors occurred: E0499, E0502.
For more information about an error, try `rustc --explain E0499`.