src/test/ui/borrowck/borrowck-anon-fields-variant.stderr

   1 warning[E0503]: cannot use `y` because it was mutably borrowed
   2   --> $DIR/borrowck-anon-fields-variant.rs:17:7
   3    |
   4 LL |       Foo::Y(ref mut a, _) => a,
   5    |              --------- borrow of `y.0` occurs here
   6 ...
   7 LL |       Foo::Y(_, ref mut b) => b,
   8    |       ^^^^^^^^^^^^^^^^^^^^ use of borrowed `y.0`
   9 ...
  10 LL |     *a += 1;
  11    |     ------- borrow later used here
  12    |
  13    = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
  14    = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
  15
  16 error[E0503]: cannot use `y` because it was mutably borrowed
  17   --> $DIR/borrowck-anon-fields-variant.rs:37:7
  18    |
  19 LL |       Foo::Y(ref mut a, _) => a,
  20    |              --------- borrow of `y.0` occurs here
  21 ...
  22 LL |       Foo::Y(ref mut b, _) => b,
  23    |       ^^^^^^^^^^^^^^^^^^^^ use of borrowed `y.0`
  24 ...
  25 LL |     *a += 1;
  26    |     ------- borrow later used here
  27
  28 error[E0499]: cannot borrow `y.0` as mutable more than once at a time
  29   --> $DIR/borrowck-anon-fields-variant.rs:37:14
  30    |
  31 LL |       Foo::Y(ref mut a, _) => a,
  32    |              --------- first mutable borrow occurs here
  33 ...
  34 LL |       Foo::Y(ref mut b, _) => b,
  35    |              ^^^^^^^^^ second mutable borrow occurs here
  36 ...
  37 LL |     *a += 1;
  38    |     ------- first borrow later used here
  39
  40 error: aborting due to 2 previous errors
  41
  42 Some errors have detailed explanations: E0499, E0503.
  43 For more information about an error, try `rustc --explain E0499`.