blob: e67c56afc0d0cf0f62a35abb121e7aa2507f7906 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
|
warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
--> $DIR/specialization-transmute.rs:3:12
|
LL | #![feature(specialization)]
| ^^^^^^^^^^^^^^
|
= note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
= help: consider using `min_specialization` instead, which is more stable and complete
= note: `#[warn(incomplete_features)]` on by default
error[E0284]: type annotations needed: cannot satisfy `T <: <T as Default>::Id`
--> $DIR/specialization-transmute.rs:16:9
|
LL | self
| ^^^^ cannot satisfy `T <: <T as Default>::Id`
error[E0284]: type annotations needed: cannot satisfy `<u8 as Default>::Id == Option<NonZeroU8>`
--> $DIR/specialization-transmute.rs:27:13
|
LL | let s = transmute::<u8, Option<NonZeroU8>>(0);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot satisfy `<u8 as Default>::Id == Option<NonZeroU8>`
|
note: required by a bound in `transmute`
--> $DIR/specialization-transmute.rs:21:25
|
LL | fn transmute<T: Default<Id = U>, U: Copy>(t: T) -> U {
| ^^^^^^ required by this bound in `transmute`
error: aborting due to 2 previous errors; 1 warning emitted
For more information about this error, try `rustc --explain E0284`.
|