Vscode rust-analyzer no error underlining in bin or tests directories

[buldurd]

I now no longer get error underlining for .rs files in my crate_root/src/bin and crate_root/tests. I'm not sure what specifically caused the change, I used to get these before.

Modules in the lib.rs tree do get error underlining.

Saving the files in bin and tests triggers a flycheck. On older version of rust-analyzer no errors or warnings appear in the Rust Analyzer Language Server output window, with or without RA_LOG=info.

After updating to the 2023-02-05 version of rust-analyzer I get this error on server start, but no additional errors on check.

Error: Custom { kind: InvalidData, error: Error("unknown variant `ApiVersionCheck`, expected `ListMacros` or `ExpandMacro`", line: 1, column: 18) }
Error: Custom { kind: InvalidData, error: Error("unknown variant `ApiVersionCheck`, expected `ListMacros` or `ExpandMacro`", line: 1, column: 18) }
Error: Custom { kind: InvalidData, error: Error("unknown variant `ApiVersionCheck`, expected `ListMacros` or `ExpandMacro`", line: 1, column: 18) }

The most notable thing I can tell from Rust Analyzer Language Server Trace is that no Received notification 'textDocument/publishDiagnostics'. blocks appear for the bin and test files, while those blocks do appear for the files in the lib tree.

It seems like these files might get covered by a cargo check at some point because I do get inlay hints, code lens, and code actions to attempt to fix compilation errors. If I run cargo check --tests in the project crate directory all files get covered and report errors.

I am on rust-analyzer server version 0.0.0 (0b32b65ca 2023-02-05) and extension version 0.3.1394, which I think is about as up to date as I can be. I was seeing this issue on older versions and updated to see if it would go away. My VS Code version is 1.75.0.

When I created a new cargo project I could not reproduce the issue.
Opening the same cargo project in a new workspace does reproduce the issue.

What might be the problem causing my runnable files not to get error highlighting? Are there further steps I could take to diagnose the problem?

[buldurd]

The issue appears to be that there were #[deny(...)] clippy lints in the library code.

Apparently this prevents the executable code from being checked.