| warning: trait objects without an explicit `dyn` are deprecated |
| --> $DIR/lint-group-allowed-warn-by-default-lint.rs:10:25 |
| | |
| LL | pub fn function(_x: Box<SomeTrait>) {} |
| | ^^^^^^^^^ |
| | |
| = 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: `--force-warn bare-trait-objects` implied by `--force-warn rust-2018-idioms` |
| = help: to override `--force-warn rust-2018-idioms` add `#[allow(bare_trait_objects)]` |
| help: if this is an object-safe trait, use `dyn` |
| | |
| LL | pub fn function(_x: Box<dyn SomeTrait>) {} |
| | +++ |
| |
| warning: 1 warning emitted |
| |
