Errors thrown for yew html macro.

[Magicloud]

Crate yew contains a html macro, which usage is basically as:

html! {
<div>Some Text</div>
}

The usage is not accepted by rust-analyzer in VS Code. Two kinds of errors got.

1. when there is a space between ! and {: proc macro returned error: proc-macro panicked: internal error: entered unreachable code
2. when there is no space: proc macro returned error: proc-macro panicked: use-after-free in proc_macro handle

rust-analyzer version: 0.2.637

RLS version: rls 1.41.0 (9ed6f96 2021-05-26)

[bjorn3]

Are you using nightly rustc? If so: Duplicate of #8925

tl;dr: rustc nightly changed the unstable proc macro abi. rust-analyzer can't adopt to the changes until the changes land on stable as otherwise proc macros break on stable.

[luisvgs]

@bjorn3 so for now should we use rustc stable? I'm currently dealing with a similar error related to proc-macro

[lnicola]

User stable or an older nightly, or disable proc macros in RA.

[Magicloud]

Thanks. Yew requires nightly.