src/test/ui/borrowck/borrowck-closures-unique.nll.stderr

   1 error[E0500]: closure requires unique access to `x` but it is already borrowed
   2   --> $DIR/borrowck-closures-unique.rs:36:14
   3    |
   4 LL |     let c1 = || get(x);
   5    |              --     - first borrow occurs due to use of `x` in closure
   6    |              |
   7    |              borrow occurs here
   8 LL |     let c2 = || set(x); //~ ERROR closure requires unique access to `x`
   9    |              ^^     - second borrow occurs due to use of `x` in closure
  10    |              |
  11    |              closure construction occurs here
  12 LL |     c1;
  13    |     -- first borrow later used here
  14
  15 error[E0500]: closure requires unique access to `x` but it is already borrowed
  16   --> $DIR/borrowck-closures-unique.rs:42:14
  17    |
  18 LL |     let c1 = || get(x);
  19    |              --     - first borrow occurs due to use of `x` in closure
  20    |              |
  21    |              borrow occurs here
  22 LL |     let c2 = || { get(x); set(x); }; //~ ERROR closure requires unique access to `x`
  23    |              ^^       - second borrow occurs due to use of `x` in closure
  24    |              |
  25    |              closure construction occurs here
  26 LL |     c1;
  27    |     -- first borrow later used here
  28
  29 error[E0524]: two closures require unique access to `x` at the same time
  30   --> $DIR/borrowck-closures-unique.rs:48:14
  31    |
  32 LL |     let c1 = || set(x);
  33    |              --     - first borrow occurs due to use of `x` in closure
  34    |              |
  35    |              first closure is constructed here
  36 LL |     let c2 = || set(x); //~ ERROR two closures require unique access to `x` at the same time
  37    |              ^^     - second borrow occurs due to use of `x` in closure
  38    |              |
  39    |              second closure is constructed here
  40 LL |     c1;
  41    |     -- first borrow later used here
  42
  43 error[E0594]: cannot assign to `x`, as it is not declared as mutable
  44   --> $DIR/borrowck-closures-unique.rs:57:38
  45    |
  46 LL | fn e(x: &'static mut isize) {
  47    |      - help: consider changing this to be mutable: `mut x`
  48 LL |     let c1 = |y: &'static mut isize| x = y; //~ ERROR closure cannot assign to immutable argument
  49    |                                      ^^^^^ cannot assign
  50
  51 error: aborting due to 4 previous errors
  52
  53 Some errors occurred: E0500, E0524, E0594.
  54 For more information about an error, try `rustc --explain E0500`.