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variadic-ffi-4.stderr
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error: lifetime may not live long enough
--> $DIR/variadic-ffi-4.rs:8:5
|
LL | pub unsafe extern "C" fn no_escape0<'f>(_: usize, ap: ...) -> VaListImpl<'f> {
| -- -- has type `VaListImpl<'1>`
| |
| lifetime `'f` defined here
LL | ap
| ^^ function was supposed to return data with lifetime `'1` but it is returning data with lifetime `'f`
|
= note: requirement occurs because of the type VaListImpl<'_>, which makes the generic argument '_ invariant
= note: the struct VaListImpl<'f> is invariant over the parameter 'f
= help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance
error: lifetime may not live long enough
--> $DIR/variadic-ffi-4.rs:8:5
|
LL | pub unsafe extern "C" fn no_escape0<'f>(_: usize, ap: ...) -> VaListImpl<'f> {
| -- -- has type `VaListImpl<'1>`
| |
| lifetime `'f` defined here
LL | ap
| ^^ returning this value requires that `'1` must outlive `'f`
|
= note: requirement occurs because of the type VaListImpl<'_>, which makes the generic argument '_ invariant
= note: the struct VaListImpl<'f> is invariant over the parameter 'f
= help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance
error: lifetime may not live long enough
--> $DIR/variadic-ffi-4.rs:14:5
|
LL | pub unsafe extern "C" fn no_escape1(_: usize, ap: ...) -> VaListImpl<'static> {
| -- has type `VaListImpl<'1>`
LL | ap
| ^^ returning this value requires that `'1` must outlive `'static`
|
= note: requirement occurs because of the type VaListImpl<'_>, which makes the generic argument '_ invariant
= note: the struct VaListImpl<'f> is invariant over the parameter 'f
= help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance
error: lifetime may not live long enough
--> $DIR/variadic-ffi-4.rs:18:31
|
LL | let _ = ap.with_copy(|ap| ap);
| --- ^^ returning this value requires that `'1` must outlive `'2`
| | |
| | return type of closure is VaList<'2, '_>
| has type `VaList<'1, '_>`
error: lifetime may not live long enough
--> $DIR/variadic-ffi-4.rs:22:5
|
LL | pub unsafe extern "C" fn no_escape3(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) {
| ------- ------- has type `VaListImpl<'2>`
| |
| has type `&mut VaListImpl<'1>`
LL | *ap0 = ap1;
| ^^^^ assignment requires that `'1` must outlive `'2`
|
= note: requirement occurs because of the type VaListImpl<'_>, which makes the generic argument '_ invariant
= note: the struct VaListImpl<'f> is invariant over the parameter 'f
= help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance
error: lifetime may not live long enough
--> $DIR/variadic-ffi-4.rs:22:5
|
LL | pub unsafe extern "C" fn no_escape3(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) {
| ------- ------- has type `VaListImpl<'2>`
| |
| has type `&mut VaListImpl<'1>`
LL | *ap0 = ap1;
| ^^^^ assignment requires that `'2` must outlive `'1`
|
= note: requirement occurs because of the type VaListImpl<'_>, which makes the generic argument '_ invariant
= note: the struct VaListImpl<'f> is invariant over the parameter 'f
= help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance
error: lifetime may not live long enough
--> $DIR/variadic-ffi-4.rs:28:5
|
LL | pub unsafe extern "C" fn no_escape4(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) {
| ------- ------- has type `VaListImpl<'2>`
| |
| has type `&mut VaListImpl<'1>`
LL | ap0 = &mut ap1;
| ^^^^^^^^^^^^^^ assignment requires that `'1` must outlive `'2`
|
= note: requirement occurs because of a mutable reference to VaListImpl<'_>
= note: mutable references are invariant over their type parameter
= help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance
error: lifetime may not live long enough
--> $DIR/variadic-ffi-4.rs:28:5
|
LL | pub unsafe extern "C" fn no_escape4(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) {
| ------- ------- has type `VaListImpl<'2>`
| |
| has type `&mut VaListImpl<'1>`
LL | ap0 = &mut ap1;
| ^^^^^^^^^^^^^^ assignment requires that `'2` must outlive `'1`
|
= note: requirement occurs because of a mutable reference to VaListImpl<'_>
= note: mutable references are invariant over their type parameter
= help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance
error[E0597]: `ap1` does not live long enough
--> $DIR/variadic-ffi-4.rs:28:11
|
LL | pub unsafe extern "C" fn no_escape4(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) {
| - let's call the lifetime of this reference `'3`
LL | ap0 = &mut ap1;
| ------^^^^^^^^
| | |
| | borrowed value does not live long enough
| assignment requires that `ap1` is borrowed for `'3`
...
LL | }
| - `ap1` dropped here while still borrowed
error: lifetime may not live long enough
--> $DIR/variadic-ffi-4.rs:35:12
|
LL | pub unsafe extern "C" fn no_escape5(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) {
| ------- ------- has type `VaListImpl<'2>`
| |
| has type `&mut VaListImpl<'1>`
LL | *ap0 = ap1.clone();
| ^^^^^^^^^^^ argument requires that `'1` must outlive `'2`
|
= note: requirement occurs because of the type VaListImpl<'_>, which makes the generic argument '_ invariant
= note: the struct VaListImpl<'f> is invariant over the parameter 'f
= help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance
error: lifetime may not live long enough
--> $DIR/variadic-ffi-4.rs:35:12
|
LL | pub unsafe extern "C" fn no_escape5(_: usize, mut ap0: &mut VaListImpl, mut ap1: ...) {
| ------- ------- has type `VaListImpl<'2>`
| |
| has type `&mut VaListImpl<'1>`
LL | *ap0 = ap1.clone();
| ^^^^^^^^^^^ argument requires that `'2` must outlive `'1`
|
= note: requirement occurs because of the type VaListImpl<'_>, which makes the generic argument '_ invariant
= note: the struct VaListImpl<'f> is invariant over the parameter 'f
= help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance
error: aborting due to 11 previous errors
For more information about this error, try `rustc --explain E0597`.