Regression: "proc macro not found"

[maxnoel]

Hi,

As of the most recent version of rust-analyzer, I'm running into problems where proc macro use is always highlighted as an error with an error message of this form:

proc macro `main` not expanded: proc macro not foundrust-analyzer[unresolved-proc-macro](https://rust-analyzer.github.io/manual.html#unresolved-proc-macro)

A "simple" Tokio hello-world program can trigger the bug:

(this is the full source code of the example program, whose sole dependency is tokio = { version = "1.19.2", features = ["full"] }. cargo run compiles and executes it as expected)

rust-analyzer version: rust-analyzer version: 0.0.0 (427061d 2022-06-19)

rustc version: rustc 1.61.0 (fe5b13d68 2022-05-18)

I'm running stable-x86_64-pc-windows-msvc (default) on Windows 10, with Visual Studio Code as my IDE and the normal rust-analyzer extension. Nothing exotic. Let me know if there's any info I can give you to help.

[bjorn3]

Duplicate of #12450 I think.

[flodiebold]

Indeed.