Plugin does not seem to work with no_std, complains about dubplicate panic_impl

[chris-oo]

Sublime Text Version

Sublime Text 3211

Rust Enhanced Version

v2.21.0

Operating system

OS Name Microsoft Windows 10 Pro

Expected behavior

When compiling a library crate built with no_std, it's up to the library to have it's own definition for a panic handler.

I would expect both cargo build and the plugin to recognize this as okay.

Actual behavior

Cargo build works fine, but when I use the plugin it complains about duplicate lang item found, panic_impl, first defined in crate std.

Steps to reproduce

Clone repo here: https://github.com/chris-oo/no_std_repro

It will build with cargo build, but when using RustEnhanced the duplicate lang item found shows up.

References

I noticed the rust RLS issue here (rust-lang/rls#904) possibly related?

Thanks!
Chris

[ehuss]

I assume you're talking about on-save checking?

If so, you need to set the rust_syntax_checking_include_tests config setting to false. The default is true which causes it to use --test to provide checks for #[test] tests, but that is not compatible with no_std.

[chris-oo]

That fixed it thanks! Would be nice to maybe include that in the docs.