# `box_syntax`
-The tracking issue for this feature is: [#27779]
+The tracking issue for this feature is: [#49733]
-[#27779]: https://github.com/rust-lang/rust/issues/27779
+[#49733]: https://github.com/rust-lang/rust/issues/49733
See also [`box_patterns`](language-features/box-patterns.html)
// rustc internal
(active, rustc_diagnostic_macros, "1.0.0", None, None),
(active, rustc_const_unstable, "1.0.0", None, None),
- (active, box_syntax, "1.0.0", Some(27779), None),
+ (active, box_syntax, "1.0.0", Some(49733), None),
(active, unboxed_closures, "1.0.0", Some(29625), None),
(active, fundamental, "1.0.0", Some(29635), None),
-error[E0658]: box expression syntax is experimental; you can call `Box::new` instead. (see issue #27779)
+error[E0658]: box expression syntax is experimental; you can call `Box::new` instead. (see issue #49733)
--> $DIR/feature-gate-box-expr.rs:22:13
|
LL | let x = box 'c'; //~ ERROR box expression syntax is experimental
-error[E0658]: box expression syntax is experimental; you can call `Box::new` instead. (see issue #27779)
+error[E0658]: box expression syntax is experimental; you can call `Box::new` instead. (see issue #49733)
--> $DIR/feature-gate-box_syntax.rs:14:13
|
LL | let x = box 3;