error when compiling

[emm312]

  --> aero_kernel/src/main.rs:40:5
   |
40 |     box_syntax,
   |     ^^^^^^^^^^ feature has been removed
   |
   = note: replaced with `#[rustc_box]`

compiled with rustc 1.70.0-nightly (0c61c7a97 2023-03-25) on macos

[Andy-Python-Programmer]

fixed :)