src/test/ui/borrowck/borrowck-closures-two-mut.stderr

   1 error[E0499]: cannot borrow `x` as mutable more than once at a time
   2   --> $DIR/borrowck-closures-two-mut.rs:12:24
   3    |
   4 LL |     let c1 = to_fn_mut(|| x = 4);
   5    |                        -- - first borrow occurs due to use of `x` in closure
   6    |                        |
   7    |                        first mutable borrow occurs here
   8 LL |     let c2 = to_fn_mut(|| x = 5);
   9    |                        ^^ - second borrow occurs due to use of `x` in closure
  10    |                        |
  11    |                        second mutable borrow occurs here
  12 LL |     drop((c1, c2));
  13    |           -- first borrow later used here
  14
  15 error[E0499]: cannot borrow `x` as mutable more than once at a time
  16   --> $DIR/borrowck-closures-two-mut.rs:23:24
  17    |
  18 LL |     let c1 = to_fn_mut(|| set(&mut x));
  19    |                        --          - first borrow occurs due to use of `x` in closure
  20    |                        |
  21    |                        first mutable borrow occurs here
  22 LL |     let c2 = to_fn_mut(|| set(&mut x));
  23    |                        ^^          - second borrow occurs due to use of `x` in closure
  24    |                        |
  25    |                        second mutable borrow occurs here
  26 LL |     drop((c1, c2));
  27    |           -- first borrow later used here
  28
  29 error[E0499]: cannot borrow `x` as mutable more than once at a time
  30   --> $DIR/borrowck-closures-two-mut.rs:30:24
  31    |
  32 LL |     let c1 = to_fn_mut(|| x = 5);
  33    |                        -- - first borrow occurs due to use of `x` in closure
  34    |                        |
  35    |                        first mutable borrow occurs here
  36 LL |     let c2 = to_fn_mut(|| set(&mut x));
  37    |                        ^^          - second borrow occurs due to use of `x` in closure
  38    |                        |
  39    |                        second mutable borrow occurs here
  40 LL |     drop((c1, c2));
  41    |           -- first borrow later used here
  42
  43 error[E0499]: cannot borrow `x` as mutable more than once at a time
  44   --> $DIR/borrowck-closures-two-mut.rs:37:24
  45    |
  46 LL |     let c1 = to_fn_mut(|| x = 5);
  47    |                        -- - first borrow occurs due to use of `x` in closure
  48    |                        |
  49    |                        first mutable borrow occurs here
  50 LL |     let c2 = to_fn_mut(|| { let _y = to_fn_mut(|| set(&mut x)); }); // (nested closure)
  51    |                        ^^                                  - second borrow occurs due to use of `x` in closure
  52    |                        |
  53    |                        second mutable borrow occurs here
  54 LL |
  55 LL |     drop((c1, c2));
  56    |           -- first borrow later used here
  57
  58 error[E0499]: cannot borrow `x` as mutable more than once at a time
  59   --> $DIR/borrowck-closures-two-mut.rs:49:24
  60    |
  61 LL |     let c1 = to_fn_mut(|| set(&mut *x.f));
  62    |                        --          ---- first borrow occurs due to use of `x` in closure
  63    |                        |
  64    |                        first mutable borrow occurs here
  65 LL |     let c2 = to_fn_mut(|| set(&mut *x.f));
  66    |                        ^^          ---- second borrow occurs due to use of `x` in closure
  67    |                        |
  68    |                        second mutable borrow occurs here
  69 LL |
  70 LL |     drop((c1, c2));
  71    |           -- first borrow later used here
  72
  73 error: aborting due to 5 previous errors
  74
  75 For more information about this error, try `rustc --explain E0499`.