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|
warning: trait objects without an explicit `dyn` are deprecated
--> $DIR/issue-116434-2015.rs:5:17
|
LL | fn foo() -> Clone;
| ^^^^^
|
= warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
= note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
= note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
help: if this is a dyn-compatible trait, use `dyn`
|
LL | fn foo() -> dyn Clone;
| +++
warning: trait objects without an explicit `dyn` are deprecated
--> $DIR/issue-116434-2015.rs:5:17
|
LL | fn foo() -> Clone;
| ^^^^^
|
= warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
= note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
help: if this is a dyn-compatible trait, use `dyn`
|
LL | fn foo() -> dyn Clone;
| +++
error[E0038]: the trait `Clone` is not dyn compatible
--> $DIR/issue-116434-2015.rs:5:17
|
LL | fn foo() -> Clone;
| ^^^^^ `Clone` is not dyn compatible
|
= note: the trait is not dyn compatible because it requires `Self: Sized`
= note: for a trait to be dyn compatible it needs to allow building a vtable
for more information, visit <https://doc.rust-lang.org/reference/items/traits.html#dyn-compatibility>
help: you might have meant to use `Self` to refer to the implementing type
|
LL - fn foo() -> Clone;
LL + fn foo() -> Self;
|
help: there is an associated type with the same name
|
LL | fn foo() -> Self::Clone;
| ++++++
warning: trait objects without an explicit `dyn` are deprecated
--> $DIR/issue-116434-2015.rs:21:20
|
LL | fn handle() -> DbHandle;
| ^^^^^^^^
|
= warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
= note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
help: if this is a dyn-compatible trait, use `dyn`
|
LL | fn handle() -> dyn DbHandle;
| +++
warning: trait objects without an explicit `dyn` are deprecated
--> $DIR/issue-116434-2015.rs:21:20
|
LL | fn handle() -> DbHandle;
| ^^^^^^^^
|
= warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
= note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
help: if this is a dyn-compatible trait, use `dyn`
|
LL | fn handle() -> dyn DbHandle;
| +++
error[E0038]: the trait `DbHandle` is not dyn compatible
--> $DIR/issue-116434-2015.rs:21:20
|
LL | fn handle() -> DbHandle;
| ^^^^^^^^ `DbHandle` is not dyn compatible
|
note: for a trait to be dyn compatible it needs to allow building a vtable
for more information, visit <https://doc.rust-lang.org/reference/items/traits.html#dyn-compatibility>
--> $DIR/issue-116434-2015.rs:17:17
|
LL | trait DbHandle: Sized {}
| -------- ^^^^^ ...because it requires `Self: Sized`
| |
| this trait is not dyn compatible...
help: you might have meant to use `Self` to refer to the implementing type
|
LL - fn handle() -> DbHandle;
LL + fn handle() -> Self;
|
help: there is an associated type with the same name
|
LL | fn handle() -> Self::DbHandle;
| ++++++
error: aborting due to 2 previous errors; 4 warnings emitted
For more information about this error, try `rustc --explain E0038`.
|
