tests/ui/nll/issue-54556-used-vs-unused-tails.stderr

   1 error[E0597]: `_t1` does not live long enough
   2   --> $DIR/issue-54556-used-vs-unused-tails.rs:10:55
   3    |
   4 LL |     {              let mut _t1 = D(Box::new("t1")); D(&_t1).end()    } ; // suggest `;`
   5    |                                                     --^^^^-          - - ... and the borrow might be used here, when that temporary is dropped and runs the `Drop` code for type `D`
   6    |                                                     | |              |
   7    |                                                     | |              `_t1` dropped here while still borrowed
   8    |                                                     | borrowed value does not live long enough
   9    |                                                     a temporary with access to the borrow is created here ...
  10    |
  11 help: consider adding semicolon after the expression so its temporaries are dropped sooner, before the local variables declared by the block are dropped
  12    |
  13 LL |     {              let mut _t1 = D(Box::new("t1")); D(&_t1).end();    } ; // suggest `;`
  14    |                                                                  +
  15
  16 error[E0597]: `_t1` does not live long enough
  17   --> $DIR/issue-54556-used-vs-unused-tails.rs:13:55
  18    |
  19 LL |     {            { let mut _t1 = D(Box::new("t1")); D(&_t1).end() }  } ; // suggest `;`
  20    |                                                     --^^^^-       -    - ... and the borrow might be used here, when that temporary is dropped and runs the `Drop` code for type `D`
  21    |                                                     | |           |
  22    |                                                     | |           `_t1` dropped here while still borrowed
  23    |                                                     | borrowed value does not live long enough
  24    |                                                     a temporary with access to the borrow is created here ...
  25    |
  26 help: consider adding semicolon after the expression so its temporaries are dropped sooner, before the local variables declared by the block are dropped
  27    |
  28 LL |     {            { let mut _t1 = D(Box::new("t1")); D(&_t1).end(); }  } ; // suggest `;`
  29    |                                                                  +
  30
  31 error[E0597]: `_t1` does not live long enough
  32   --> $DIR/issue-54556-used-vs-unused-tails.rs:16:55
  33    |
  34 LL |     {            { let mut _t1 = D(Box::new("t1")); D(&_t1).end() }; }   // suggest `;`
  35    |                                                     --^^^^-       -- ... and the borrow might be used here, when that temporary is dropped and runs the `Drop` code for type `D`
  36    |                                                     | |           |
  37    |                                                     | |           `_t1` dropped here while still borrowed
  38    |                                                     | borrowed value does not live long enough
  39    |                                                     a temporary with access to the borrow is created here ...
  40    |
  41 help: consider adding semicolon after the expression so its temporaries are dropped sooner, before the local variables declared by the block are dropped
  42    |
  43 LL |     {            { let mut _t1 = D(Box::new("t1")); D(&_t1).end(); }; }   // suggest `;`
  44    |                                                                  +
  45
  46 error[E0597]: `_t1` does not live long enough
  47   --> $DIR/issue-54556-used-vs-unused-tails.rs:19:55
  48    |
  49 LL |     let _ =      { let mut _t1 = D(Box::new("t1")); D(&_t1).end()    } ; // suggest `;`
  50    |                                                     --^^^^-          - - ... and the borrow might be used here, when that temporary is dropped and runs the `Drop` code for type `D`
  51    |                                                     | |              |
  52    |                                                     | |              `_t1` dropped here while still borrowed
  53    |                                                     | borrowed value does not live long enough
  54    |                                                     a temporary with access to the borrow is created here ...
  55    |
  56 help: consider adding semicolon after the expression so its temporaries are dropped sooner, before the local variables declared by the block are dropped
  57    |
  58 LL |     let _ =      { let mut _t1 = D(Box::new("t1")); D(&_t1).end();    } ; // suggest `;`
  59    |                                                                  +
  60
  61 error[E0597]: `_t1` does not live long enough
  62   --> $DIR/issue-54556-used-vs-unused-tails.rs:22:55
  63    |
  64 LL |     let _u =     { let mut _t1 = D(Box::new("t1")); D(&_t1).unit()   } ; // suggest `;`
  65    |                                                     --^^^^-          - - ... and the borrow might be used here, when that temporary is dropped and runs the `Drop` code for type `D`
  66    |                                                     | |              |
  67    |                                                     | |              `_t1` dropped here while still borrowed
  68    |                                                     | borrowed value does not live long enough
  69    |                                                     a temporary with access to the borrow is created here ...
  70    |
  71 help: consider adding semicolon after the expression so its temporaries are dropped sooner, before the local variables declared by the block are dropped
  72    |
  73 LL |     let _u =     { let mut _t1 = D(Box::new("t1")); D(&_t1).unit();   } ; // suggest `;`
  74    |                                                                   +
  75
  76 error[E0597]: `_t1` does not live long enough
  77   --> $DIR/issue-54556-used-vs-unused-tails.rs:25:55
  78    |
  79 LL |     let _x =     { let mut _t1 = D(Box::new("t1")); D(&_t1).end()    } ; // `let x = ...; x`
  80    |                                                     --^^^^-          - - ... and the borrow might be used here, when that temporary is dropped and runs the `Drop` code for type `D`
  81    |                                                     | |              |
  82    |                                                     | |              `_t1` dropped here while still borrowed
  83    |                                                     | borrowed value does not live long enough
  84    |                                                     a temporary with access to the borrow is created here ...
  85    |
  86    = note: the temporary is part of an expression at the end of a block;
  87            consider forcing this temporary to be dropped sooner, before the block's local variables are dropped
  88 help: for example, you could save the expression's value in a new local variable `x` and then make `x` be the expression at the end of the block
  89    |
  90 LL |     let _x =     { let mut _t1 = D(Box::new("t1")); let x = D(&_t1).end(); x    } ; // `let x = ...; x`
  91    |                                                     +++++++              +++
  92
  93 error[E0597]: `_t1` does not live long enough
  94   --> $DIR/issue-54556-used-vs-unused-tails.rs:30:55
  95    |
  96 LL |     _y =         { let mut _t1 = D(Box::new("t1")); D(&_t1).end() } ; // `let x = ...; x`
  97    |                                                     --^^^^-       - - ... and the borrow might be used here, when that temporary is dropped and runs the `Drop` code for type `D`
  98    |                                                     | |           |
  99    |                                                     | |           `_t1` dropped here while still borrowed
 100    |                                                     | borrowed value does not live long enough
 101    |                                                     a temporary with access to the borrow is created here ...
 102    |
 103    = note: the temporary is part of an expression at the end of a block;
 104            consider forcing this temporary to be dropped sooner, before the block's local variables are dropped
 105 help: for example, you could save the expression's value in a new local variable `x` and then make `x` be the expression at the end of the block
 106    |
 107 LL |     _y =         { let mut _t1 = D(Box::new("t1")); let x = D(&_t1).end(); x } ; // `let x = ...; x`
 108    |                                                     +++++++              +++
 109
 110 error[E0597]: `_t1` does not live long enough
 111   --> $DIR/issue-54556-used-vs-unused-tails.rs:37:55
 112    |
 113 LL | fn f_local_ref() { let mut _t1 = D(Box::new("t1")); D(&_t1).unit()   }  // suggest `;`
 114    |                                                     --^^^^-          -
 115    |                                                     | |              |
 116    |                                                     | |              `_t1` dropped here while still borrowed
 117    |                                                     | |              ... and the borrow might be used here, when that temporary is dropped and runs the `Drop` code for type `D`
 118    |                                                     | borrowed value does not live long enough
 119    |                                                     a temporary with access to the borrow is created here ...
 120    |
 121 help: consider adding semicolon after the expression so its temporaries are dropped sooner, before the local variables declared by the block are dropped
 122    |
 123 LL | fn f_local_ref() { let mut _t1 = D(Box::new("t1")); D(&_t1).unit();   }  // suggest `;`
 124    |                                                                   +
 125
 126 error[E0597]: `_t1` does not live long enough
 127   --> $DIR/issue-54556-used-vs-unused-tails.rs:40:55
 128    |
 129 LL | fn f() -> String { let mut _t1 = D(Box::new("t1")); D(&_t1).end()   }   // `let x = ...; x`
 130    |                                                     --^^^^-         -
 131    |                                                     | |             |
 132    |                                                     | |             `_t1` dropped here while still borrowed
 133    |                                                     | |             ... and the borrow might be used here, when that temporary is dropped and runs the `Drop` code for type `D`
 134    |                                                     | borrowed value does not live long enough
 135    |                                                     a temporary with access to the borrow is created here ...
 136    |
 137    = note: the temporary is part of an expression at the end of a block;
 138            consider forcing this temporary to be dropped sooner, before the block's local variables are dropped
 139 help: for example, you could save the expression's value in a new local variable `x` and then make `x` be the expression at the end of the block
 140    |
 141 LL | fn f() -> String { let mut _t1 = D(Box::new("t1")); let x = D(&_t1).end(); x   }   // `let x = ...; x`
 142    |                                                     +++++++              +++
 143
 144 error: aborting due to 9 previous errors
 145
 146 For more information about this error, try `rustc --explain E0597`.