src/test/ui/regions/regions-close-object-into-object-4.stderr

   1 error[E0310]: the parameter type `U` may not live long enough
   2   --> $DIR/regions-close-object-into-object-4.rs:9:5
   3    |
   4 LL |     Box::new(B(&*v)) as Box<dyn X>
   5    |     ^^^^^^^^ ...so that the type `U` will meet its required lifetime bounds
   6    |
   7 help: consider adding an explicit lifetime bound...
   8    |
   9 LL | fn i<'a, T, U: 'static>(v: Box<dyn A<U>+'a>) -> Box<dyn X + 'static> {
  10    |              +++++++++
  11
  12 error[E0310]: the parameter type `U` may not live long enough
  13   --> $DIR/regions-close-object-into-object-4.rs:9:5
  14    |
  15 LL |     Box::new(B(&*v)) as Box<dyn X>
  16    |     ^^^^^^^^^^^^^^^^ ...so that the type `U` will meet its required lifetime bounds
  17    |
  18 help: consider adding an explicit lifetime bound...
  19    |
  20 LL | fn i<'a, T, U: 'static>(v: Box<dyn A<U>+'a>) -> Box<dyn X + 'static> {
  21    |              +++++++++
  22
  23 error[E0310]: the parameter type `U` may not live long enough
  24   --> $DIR/regions-close-object-into-object-4.rs:9:5
  25    |
  26 LL |     Box::new(B(&*v)) as Box<dyn X>
  27    |     ^^^^^^^^^^^^^^^^ ...so that the type `U` will meet its required lifetime bounds
  28    |
  29 help: consider adding an explicit lifetime bound...
  30    |
  31 LL | fn i<'a, T, U: 'static>(v: Box<dyn A<U>+'a>) -> Box<dyn X + 'static> {
  32    |              +++++++++
  33
  34 error: lifetime may not live long enough
  35   --> $DIR/regions-close-object-into-object-4.rs:9:5
  36    |
  37 LL | fn i<'a, T, U>(v: Box<dyn A<U>+'a>) -> Box<dyn X + 'static> {
  38    |      -- lifetime `'a` defined here
  39 LL |     Box::new(B(&*v)) as Box<dyn X>
  40    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ returning this value requires that `'a` must outlive `'static`
  41    |
  42 help: consider changing the trait object's explicit `'static` bound to the lifetime of argument `v`
  43    |
  44 LL | fn i<'a, T, U>(v: Box<dyn A<U>+'a>) -> Box<dyn X + 'a> {
  45    |                                                    ~~
  46 help: alternatively, add an explicit `'static` bound to this reference
  47    |
  48 LL | fn i<'a, T, U>(v: Box<(dyn A<U> + 'static)>) -> Box<dyn X + 'static> {
  49    |                   ~~~~~~~~~~~~~~~~~~~~~~~~~
  50
  51 error[E0515]: cannot return value referencing local data `*v`
  52   --> $DIR/regions-close-object-into-object-4.rs:9:5
  53    |
  54 LL |     Box::new(B(&*v)) as Box<dyn X>
  55    |     ^^^^^^^^^^^---^^^^^^^^^^^^^^^^
  56    |     |          |
  57    |     |          `*v` is borrowed here
  58    |     returns a value referencing data owned by the current function
  59
  60 error[E0310]: the parameter type `U` may not live long enough
  61   --> $DIR/regions-close-object-into-object-4.rs:9:14
  62    |
  63 LL |     Box::new(B(&*v)) as Box<dyn X>
  64    |              ^^^^^^ ...so that the type `U` will meet its required lifetime bounds
  65    |
  66 help: consider adding an explicit lifetime bound...
  67    |
  68 LL | fn i<'a, T, U: 'static>(v: Box<dyn A<U>+'a>) -> Box<dyn X + 'static> {
  69    |              +++++++++
  70
  71 error: aborting due to 6 previous errors
  72
  73 Some errors have detailed explanations: E0310, E0515.
  74 For more information about an error, try `rustc --explain E0310`.