src/test/ui/nll/closure-captures.stderr

   1 error[E0594]: cannot assign to `x`, as it is not declared as mutable
   2   --> $DIR/closure-captures.rs:7:5
   3    |
   4 LL | fn one_closure(x: i32) {
   5    |                - help: consider changing this to be mutable: `mut x`
   6 LL |     ||
   7 LL |     x = 1;
   8    |     ^^^^^ cannot assign
   9
  10 error[E0594]: cannot assign to `x`, as it is not declared as mutable
  11   --> $DIR/closure-captures.rs:9:5
  12    |
  13 LL | fn one_closure(x: i32) {
  14    |                - help: consider changing this to be mutable: `mut x`
  15 ...
  16 LL |     x = 1;
  17    |     ^^^^^ cannot assign
  18
  19 error[E0594]: cannot assign to `x`, as it is not declared as mutable
  20   --> $DIR/closure-captures.rs:15:9
  21    |
  22 LL | fn two_closures(x: i32) {
  23    |                 - help: consider changing this to be mutable: `mut x`
  24 ...
  25 LL |         x = 1;
  26    |         ^^^^^ cannot assign
  27
  28 error[E0594]: cannot assign to `x`, as it is not declared as mutable
  29   --> $DIR/closure-captures.rs:19:9
  30    |
  31 LL | fn two_closures(x: i32) {
  32    |                 - help: consider changing this to be mutable: `mut x`
  33 ...
  34 LL |         x = 1;
  35    |         ^^^^^ cannot assign
  36
  37 error[E0596]: cannot borrow `x` as mutable, as it is a captured variable in a `Fn` closure
  38   --> $DIR/closure-captures.rs:27:9
  39    |
  40 LL |   fn fn_ref<F: Fn()>(f: F) -> F { f }
  41    |                         - change this to accept `FnMut` instead of `Fn`
  42 ...
  43 LL |       fn_ref(|| {
  44    |  _____------_-
  45    | |     |
  46    | |     expects `Fn` instead of `FnMut`
  47 LL | |         ||
  48    | |         ^^ cannot borrow as mutable
  49 LL | |          x = 1;}
  50    | |__________-_____- in this closure
  51    |            |
  52    |            mutable borrow occurs due to use of `x` in closure
  53
  54 error[E0596]: cannot borrow `x` as mutable, as it is a captured variable in a `Fn` closure
  55   --> $DIR/closure-captures.rs:31:9
  56    |
  57 LL |   fn fn_ref<F: Fn()>(f: F) -> F { f }
  58    |                         - change this to accept `FnMut` instead of `Fn`
  59 ...
  60 LL |       fn_ref(move || {
  61    |  _____------_-
  62    | |     |
  63    | |     expects `Fn` instead of `FnMut`
  64 LL | |         ||
  65    | |         ^^ cannot borrow as mutable
  66 LL | |     x = 1;});
  67    | |_____-_____- in this closure
  68    |       |
  69    |       mutable borrow occurs due to use of `x` in closure
  70
  71 error[E0594]: cannot assign to `x`, as it is not declared as mutable
  72   --> $DIR/closure-captures.rs:39:10
  73    |
  74 LL | fn two_closures_ref(x: i32) {
  75    |                     - help: consider changing this to be mutable: `mut x`
  76 ...
  77 LL |          x = 1;}
  78    |          ^^^^^ cannot assign
  79
  80 error[E0596]: cannot borrow `x` as mutable, as it is a captured variable in a `Fn` closure
  81   --> $DIR/closure-captures.rs:38:9
  82    |
  83 LL |   fn fn_ref<F: Fn()>(f: F) -> F { f }
  84    |                         - change this to accept `FnMut` instead of `Fn`
  85 ...
  86 LL |       fn_ref(|| {
  87    |  _____------_-
  88    | |     |
  89    | |     expects `Fn` instead of `FnMut`
  90 LL | |         ||
  91    | |         ^^ cannot borrow as mutable
  92 LL | |          x = 1;}
  93    | |__________-_____- in this closure
  94    |            |
  95    |            mutable borrow occurs due to use of `x` in closure
  96
  97 error[E0594]: cannot assign to `x`, as it is not declared as mutable
  98   --> $DIR/closure-captures.rs:43:5
  99    |
 100 LL | fn two_closures_ref(x: i32) {
 101    |                     - help: consider changing this to be mutable: `mut x`
 102 ...
 103 LL |     x = 1;});
 104    |     ^^^^^ cannot assign
 105
 106 error[E0596]: cannot borrow `x` as mutable, as it is a captured variable in a `Fn` closure
 107   --> $DIR/closure-captures.rs:42:9
 108    |
 109 LL |   fn fn_ref<F: Fn()>(f: F) -> F { f }
 110    |                         - change this to accept `FnMut` instead of `Fn`
 111 ...
 112 LL |       fn_ref(move || {
 113    |  _____------_-
 114    | |     |
 115    | |     expects `Fn` instead of `FnMut`
 116 LL | |         ||
 117    | |         ^^ cannot borrow as mutable
 118 LL | |     x = 1;});
 119    | |_____-_____- in this closure
 120    |       |
 121    |       mutable borrow occurs due to use of `x` in closure
 122
 123 error[E0596]: cannot borrow `x` as mutable, as it is a captured variable in a `Fn` closure
 124   --> $DIR/closure-captures.rs:48:9
 125    |
 126 LL |   fn fn_ref<F: Fn()>(f: F) -> F { f }
 127    |                         - change this to accept `FnMut` instead of `Fn`
 128 ...
 129 LL |       fn_ref(|| {
 130    |  _____------_-
 131    | |     |
 132    | |     expects `Fn` instead of `FnMut`
 133 LL | |         ||
 134    | |         ^^ cannot borrow as mutable
 135 LL | |         *x = 1;});
 136    | |__________-_____- in this closure
 137    |            |
 138    |            mutable borrow occurs due to use of `x` in closure
 139
 140 error[E0596]: cannot borrow `x` as mutable, as it is a captured variable in a `Fn` closure
 141   --> $DIR/closure-captures.rs:51:9
 142    |
 143 LL |   fn fn_ref<F: Fn()>(f: F) -> F { f }
 144    |                         - change this to accept `FnMut` instead of `Fn`
 145 ...
 146 LL |       fn_ref(move || {
 147    |  _____------_-
 148    | |     |
 149    | |     expects `Fn` instead of `FnMut`
 150 LL | |         ||
 151    | |         ^^ cannot borrow as mutable
 152 LL | |         *x = 1;});
 153    | |__________-_____- in this closure
 154    |            |
 155    |            mutable borrow occurs due to use of `x` in closure
 156
 157 error: aborting due to 12 previous errors
 158
 159 Some errors have detailed explanations: E0594, E0596.
 160 For more information about an error, try `rustc --explain E0594`.