Warnings and errors not showing for no_std targets with `allTargets = false`

rust-analyzer version: rust-analyzer version: faaec86ff 2022-04-12 nightly

rustc version: rustc 1.60.0 (7737e0b5c 2022-04-04)

An embedded project of mine has run into a regression with RA in the most recent version that breaks all warning and error reporting.

To get the "no crate found for test" error disabled, I added a .vscode/settings.json with the following item:

{
    "rust-analyzer.checkOnSave.allTargets": false,
}

However, once I've enabled this feature, error and warning reporting completely stops for the entire project.

If I enable all targets, the examples start to report warnings but the lib.rs throws an error about "no crate found for test".

My project is configured with a .cargo/config.toml:

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

Reproduce the report with the stated rust-analyzer and rustc versions, .vscode/settings.json setting checkOnSave.allTargets to false, and .cargo/config.toml targeting thumbv7em-none-eabihf. Compare diagnostics in lib.rs and the examples with all targets enabled and disabled; done means project warnings and errors appear without the reported unwanted test error.