| warning: trait objects without an explicit `dyn` are deprecated |
| --> $DIR/issue-116434-2015.rs:3:17 |
| | |
| 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/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html> |
| = note: `#[warn(bare_trait_objects)]` 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:18:20 |
| | |
| 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/nightly/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:3:17 |
| | |
| 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/nightly/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` cannot be made into an object |
| --> $DIR/issue-116434-2015.rs:3:17 |
| | |
| LL | fn foo() -> Clone; |
| | ^^^^^ `Clone` cannot be made into an object |
| | |
| = note: the trait cannot be made into an object because it requires `Self: Sized` |
| = note: for a trait to be "dyn-compatible" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety> |
| 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:18:20 |
| | |
| 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/nightly/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` cannot be made into an object |
| --> $DIR/issue-116434-2015.rs:18:20 |
| | |
| LL | fn handle() -> DbHandle; |
| | ^^^^^^^^ `DbHandle` cannot be made into an object |
| | |
| note: for a trait to be "dyn-compatible" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety> |
| --> $DIR/issue-116434-2015.rs:14:17 |
| | |
| LL | trait DbHandle: Sized {} |
| | -------- ^^^^^ ...because it requires `Self: Sized` |
| | | |
| | this trait cannot be made into an object... |
| 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`. |
