Fail to compile the latest code

[nxtreaming]

When I try to compile the latest code by JetBrains RustRover, I get the following error:

error[E0658]: use of unstable library feature 'lazy_cell'
--> src\embedded_certificate.rs:3:5
|
3 | use std::sync::LazyLock;
| ^^^^^^^^^^^^^^^^^^^
|
= note: see issue #109736 rust-lang/rust#109736 for more information

[github-actions]

Hello @nxtreaming 👋

This issue is being automatically closed because it does not follow the issue template.

[nxtreaming]

This error has gone when I switched to Rust 1.81.