How to set --features flag in rust-analyzer?

editors and IDEs
1

Hi folks. My project has to be build with --features foo,bar,baz because some dependencies have configs for these features. But I can't able to set this feature in rust-analyzer and because of that it is showing errors inside dependencies. I searched google but I didn't find any solution. Do you have any solution for this? Thanks.

2

There is the rust-analyzer.cargo.features config value you can pass to RA. See the configuration section of the manual:

3

Unfortunately not working. Also check.features not working too. The exact error message is here:


2025-01-26T14:53:05.0707892+03:00 ERROR Flycheck failed to run the following command: CommandHandle 
{ program: "C:\\Users\\emir\\.cargo\\bin\\cargo.exe", 
arguments: ["check", "--workspace", "--message-format=json-diagnostic-rendered-ansi",
 "--manifest-path", "C:\\project\\Cargo.toml", "--keep-going",
 "--all-targets", "--features", "foo bar"],
 current_dir: Some("C:\\project") },
 error=Cargo watcher failed, the command produced no valid metadata
 (exit code: ExitStatus(ExitStatus(101))):

I used these configs:

    "rust-analyzer.check.features": [
        "foo,bar
    ],
    "rust-analyzer.cargo.features": [
        "foo,bar"
    ],

And this:

    "rust-analyzer.check.features": [
        "foo", "bar"
    ],
    "rust-analyzer.cargo.features": [
        "foo", "bar"
    ],
4

Setting rust-analyzer.check.features is superfluous in your case as it defaults to rust-analyzer.cargo.features. Your second config looks right though. What happens when you try to enable all features?

"rust-analyzer.cargo.features": "all"
5

Same errors showing in PROBLEMS tab.

6

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