Feature Request: VSCode command to trigger cargo check

[rongcuid]

I want to trigger cargo check in rust-analyzer manually, via a command, instead of on save.

Scenario 1:

• I have a large project, of which cargo check takes minutes to perform
• I don't want cargo check be run on every save. Therefore, I disable running checks on save
• When it does run, however, I want rust-analyzer diagnosis be updated

Scenario 2:

• I run cargo fmt or cargo clippy on the terminal
• Rust-analyzer does not rerun checks. Currently I have to save a file to trigger

Workaround:

• Right now, I have to restart rust-analyzer every time I want to refresh the diagnosis

Possible solution:

It should be easy. Just copying existing functionality (on save) out to the commands.