rust-analyser not updating diagnostics

[flukejones]

Per title. Have tried various settings for this including nightly. While it appears that LSP interactions for predictions etc work fine, I never get updates from the "rust-analyzer.checkOnSave.command": "clippy", setting which should run either clippy or check on save.

[flukejones]

A very quick way to check if this is working is with the following code snippet:

fn main() {
  let x:u8 = 42;
}

change 42 to 'x' and save, you'll get an error highlight if clippy/check runs on save.

[bryphe]

Thanks for the helpful repro!

Looks like this was fixed by #2999 as well, which sends the appropriate notification to the extension host on save.

Now, when I save, I get the diagnostics updating: