rust/src/test/ui/mir/issue-80742.stderr

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error[E0080]: evaluation of `Inline::<dyn std::fmt::Debug>::{constant#0}` failed
--> $SRC_DIR/core/src/mem/mod.rs:LL:COL
|
LL | intrinsics::size_of::<T>()
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
| |
| size_of called on unsized type `dyn Debug`
| inside `std::mem::size_of::<dyn Debug>` at $SRC_DIR/core/src/mem/mod.rs:LL:COL
|
::: $DIR/issue-80742.rs:23:10
|
LL | [u8; size_of::<T>() + 1]: ,
| -------------- inside `Inline::<dyn Debug>::{constant#0}` at $DIR/issue-80742.rs:23:10
error[E0599]: the function or associated item `new` exists for struct `Inline<dyn Debug>`, but its trait bounds were not satisfied
--> $DIR/issue-80742.rs:31:36
|
LL | / struct Inline<T>
LL | | where
LL | | [u8; size_of::<T>() + 1]: ,
LL | | {
LL | | _phantom: PhantomData<T>,
LL | | buf: [u8; size_of::<T>() + 1],
LL | | }
| |_- function or associated item `new` not found for this
...
LL | let dst = Inline::<dyn Debug>::new(0);
| ^^^ function or associated item cannot be called on `Inline<dyn Debug>` due to unsatisfied trait bounds
|
::: $SRC_DIR/core/src/fmt/mod.rs:LL:COL
|
LL | pub trait Debug {
| --------------- doesn't satisfy `dyn Debug: Sized`
|
= note: the following trait bounds were not satisfied:
`dyn Debug: Sized`
error[E0080]: evaluation of `Inline::<dyn std::fmt::Debug>::{constant#0}` failed
--> $SRC_DIR/core/src/mem/mod.rs:LL:COL
|
LL | intrinsics::size_of::<T>()
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
| |
| size_of called on unsized type `dyn Debug`
| inside `std::mem::size_of::<dyn Debug>` at $SRC_DIR/core/src/mem/mod.rs:LL:COL
|
::: $DIR/issue-80742.rs:15:10
|
LL | [u8; size_of::<T>() + 1]: ,
| -------------- inside `Inline::<dyn Debug>::{constant#0}` at $DIR/issue-80742.rs:15:10
error[E0277]: the size for values of type `dyn Debug` cannot be known at compilation time
--> $DIR/issue-80742.rs:31:15
|
LL | struct Inline<T>
| - required by this bound in `Inline`
...
LL | let dst = Inline::<dyn Debug>::new(0);
2021-03-13 10:14:18 -06:00
| ^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
|
= help: the trait `Sized` is not implemented for `dyn Debug`
help: consider relaxing the implicit `Sized` restriction
|
LL | struct Inline<T: ?Sized>
| ^^^^^^^^
error: aborting due to 4 previous errors
Some errors have detailed explanations: E0080, E0277, E0599.
For more information about an error, try `rustc --explain E0080`.