| warning: box pattern syntax is experimental |
| --> $DIR/cfg-false-feature.rs:16:9 |
| | |
| LL | let box _ = Box::new(0); |
| | ^^^^^ |
| | |
| = note: see issue #29641 <https://github.com/rust-lang/rust/issues/29641> for more information |
| = help: add `#![feature(box_patterns)]` to the crate attributes to enable |
| = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date |
| = warning: unstable syntax can change at any point in the future, causing a hard error! |
| = note: for more information, see issue #65860 <https://github.com/rust-lang/rust/issues/65860> |
| |
| warning: trait aliases are experimental |
| --> $DIR/cfg-false-feature.rs:12:1 |
| | |
| LL | trait A = Clone; |
| | ^^^^^^^^^^^^^^^^ |
| | |
| = note: see issue #41517 <https://github.com/rust-lang/rust/issues/41517> for more information |
| = help: add `#![feature(trait_alias)]` to the crate attributes to enable |
| = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date |
| = warning: unstable syntax can change at any point in the future, causing a hard error! |
| = note: for more information, see issue #65860 <https://github.com/rust-lang/rust/issues/65860> |
| |
| warning: 2 warnings emitted |
| |
