External linters
In addition to the built-in set of inspections, RustRover allows you to run Cargo Check and Clippy without leaving the IDE.
To check which linter is enabled and whether it runs on the fly, hover over the linter widget in the status bar:

To make changes, click the widget. It will open external linter settings.
Go to Settings | Rust | External Linters.
Select the preferred external linter and provide additional commands if required:
Set the Run external linter on the fly checkbox if you prefer the chosen linter to work as you type.
warning
Running an external linter on the fly may cause a significant performance slowdown. In this case, RustRover will notify you.
Click Apply.
Before proceeding, check whether on-the-fly analysis is turned on or off.
If on-the-fly analysis is turned on, you don't need to trigger the linter – it is already running in the background.
If on-the-fly analysis is turned off, to call the linter, open the Cargo tool window (View | Tool Windows | Cargo) and click
.
Information about detected issues will appear in the Problems tool window, together with inspection results.
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