Can't find crate for test error

[caemor]

It seems to be a new error or I always manually compiled with the specific target but rust analyzer outputs that it can't find crate for test with the target set to a the target seen below (and maybe to others as well?). For each bin, lib.rs or main.rs it outputs the exact same message once.

Reduced example:
Create new rust project with cargo new SomeName and then modify the following files:
.cargo/config.toml:

[build]
target = "thumbv7em-none-eabihf"

main.rs:

#![no_std]
fn main() {}

Rust Analyzer: v0.2.801

Copied Error Message:

{
	"resource": "/tmp/rustanalyzertest/src/main.rs",
	"owner": "rustc",
	"code": {
		"value": "E0463",
		"target": {
			"$mid": 1,
			"external": "https://doc.rust-lang.org/error-index.html#E0463",
			"path": "/error-index.html",
			"scheme": "https",
			"authority": "doc.rust-lang.org",
			"fragment": "E0463"
		}
	},
	"severity": 8,
	"message": "can't find crate for `test`\ncan't find crate",
	"source": "rustc",
	"startLineNumber": 1,
	"startColumn": 1,
	"endLineNumber": 1,
	"endColumn": 1
}

[Veykril]

probably same as in #10659 (comment)

This is due to rust-analyzer implicitly passing --all-targets to the flycheck cargo invocation which makes it include the test crate which depends on std. You can get around this by setting the corresponding setting rust-analyzer.checkOnSave.allTargets to false.

[lnicola]

@caemor did that work for you?

[caemor]

Yes this fixed the issue, thanks.