New upstream version 1.62.1+dfsg1

[rustc.git] / src / test / ui / regions / region-object-lifetime-in-coercion.nll.stderr

error: lifetime may not live long enough
  --> $DIR/region-object-lifetime-in-coercion.rs:12:12
   |
LL | fn a(v: &[u8]) -> Box<dyn Foo + 'static> {
   |         - let's call the lifetime of this reference `'1`
LL |     let x: Box<dyn Foo + 'static> = Box::new(v);
   |            ^^^^^^^^^^^^^^^^^^^^^^ type annotation requires that `'1` must outlive `'static`
   |
help: consider changing the trait object's explicit `'static` bound to the lifetime of argument `v`
   |
LL | fn a(v: &[u8]) -> Box<dyn Foo + '_> {
   |                                 ~~
help: alternatively, add an explicit `'static` bound to this reference
   |
LL | fn a(v: &'static [u8]) -> Box<dyn Foo + 'static> {
   |         ~~~~~~~~~~~~~

error: lifetime may not live long enough
  --> $DIR/region-object-lifetime-in-coercion.rs:19:5
   |
LL | fn b(v: &[u8]) -> Box<dyn Foo + 'static> {
   |         - let's call the lifetime of this reference `'1`
LL |     Box::new(v)
   |     ^^^^^^^^^^^ returning this value requires that `'1` must outlive `'static`
   |
help: consider changing the trait object's explicit `'static` bound to the lifetime of argument `v`
   |
LL | fn b(v: &[u8]) -> Box<dyn Foo + '_> {
   |                                 ~~
help: alternatively, add an explicit `'static` bound to this reference
   |
LL | fn b(v: &'static [u8]) -> Box<dyn Foo + 'static> {
   |         ~~~~~~~~~~~~~

error: lifetime may not live long enough
  --> $DIR/region-object-lifetime-in-coercion.rs:27:5
   |
LL | fn c(v: &[u8]) -> Box<dyn Foo> {
   |         - let's call the lifetime of this reference `'1`
...
LL |     Box::new(v)
   |     ^^^^^^^^^^^ returning this value requires that `'1` must outlive `'static`
   |
help: to declare that the trait object captures data from argument `v`, you can add an explicit `'_` lifetime bound
   |
LL | fn c(v: &[u8]) -> Box<dyn Foo + '_> {
   |                               ++++

error: lifetime may not live long enough
  --> $DIR/region-object-lifetime-in-coercion.rs:33:5
   |
LL | fn d<'a,'b>(v: &'a [u8]) -> Box<dyn Foo+'b> {
   |      -- -- lifetime `'b` defined here
   |      |
   |      lifetime `'a` defined here
LL |     Box::new(v)
   |     ^^^^^^^^^^^ function was supposed to return data with lifetime `'b` but it is returning data with lifetime `'a`
   |
   = help: consider adding the following bound: `'a: 'b`

error: aborting due to 4 previous errors