not found error, while cargo check & build works fine

[Zercerium]

/Users/nick/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/test/src/test_result.rs:102:24
    |
102 |             Some(libc::SIGABRT) => TestResult::TrFailed,
    |                        ^^^^^^^ not found in `libc`

rust-analyzer version: 0.4.1838-standalone (c06ca6c 2024-02-11) + 0.3.1839-standalone (c06ca6c 2024-02-11)

rustc version: rustc 1.78.0-nightly (b381d3ab2 2024-02-12)

OS: Mac(M1)

fresh project generated via: cargo generate esp-rs/esp-idf-template cargo

cargo build & check works fine and don't throw this error, only r-a
if I remove the line in test_result.rs everything works fine and r-a finishes without an error

if you need further information or if I can do anything to narrow the scope down please just tell

[lnicola]

That's a file from the standard library, why would you edit it?

[Zercerium]

nah i don't want to edit it 😅. Was just for testing, if the error is then gone.

[lnicola]

So what error are you getting when you don't have the file open?

[Zercerium]

2024-02-13T17:35:30.838956Z ERROR rust_analyzer::main_loop: FetchBuildDataError:
error[E0531]: cannot find unit struct, unit variant or constant `SIGABRT` in crate `libc`
   --> /Users/nick/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/test/src/test_result.rs:102:24
    |
102 |             Some(libc::SIGABRT) => TestResult::TrFailed,
    |                        ^^^^^^^ not found in `libc`


error: aborting due to 1 previous error


For more information about this error, try `rustc --explain E0531`.

error: could not compile `test` (lib) due to 2 previous errors

I don't have this file normally open, this error shows up in the r-a: LS window after creating a new project with the command cargo generate esp-rs/esp-idf-template cargo and after r-a finishes with it run

After I got this error I opened test_result.rs and deleted the mentioned line, to test if the deletion clears the error. Which it does.

[Kezii]

I'm having the same issue, rust analyzer breaks when using an esp-idf project

2024-02-15T21:41:26.933826Z ERROR rust_analyzer::main_loop: FetchBuildDataError:
error[E0531]: cannot find unit struct, unit variant or constant `SIGABRT` in crate `libc`
   --> /home/[...]/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/test/src/test_result.rs:102:24
    |
102 |             Some(libc::SIGABRT) => TestResult::TrFailed,
    |                        ^^^^^^^ not found in `libc`


error: aborting due to 1 previous error


For more information about this error, try `rustc --explain E0531`.

error: could not compile `test` (lib) due to 2 previous errors

[mrchantey]

Yes same got the error on an esp-idf project after updating rust nightly to

rustc 1.78.0-nightly (ee9c7c940 2024-02-14)

[Veykril]

Does this happen with the latest nightly rust-analyzer build? 2024-02-15 / 2024-02-16

[Zercerium]

Does this happen with the latest nightly rust-analyzer build? 2024-02-15 / 2024-02-16

Yes, updates to rust-analyzer version: 0.4.1843-standalone (b9b0d29 2024-02-15) and rustc 1.78.0-nightly (a4472498d 2024-02-15)

[weiying-chen]

I'm having exactly the same issue. For those having this issue, is rust-analyzer not catch errors like these?

[weiying-chen]

Yes same got the error on an esp-idf project after updating rust nightly to

rustc 1.78.0-nightly (ee9c7c940 2024-02-14)

@mrchantey Which rust nightly version doesn't have this error?

[mrchantey]

@mrchantey Which rust nightly version doesn't have this error?

Pretty sure I was on the previous version 1.77.0-nightly

[weiying-chen]

@mrchantey I confirmed it: rust-analyzer works perfectly in esp-idf projects if you use rustc 1.77.0-nightly (2a3e63551 2023-12-30). The issue is rustc 1.78.0-nightly (ee9c7c940 2024-02-14).

[Zercerium]

seems plausible cause the line was added here, if I'm correct rust-lang/rust@f622e83#diff-c91a894be23c4fb9ac51642c91c20500cdd48f7f0114b4b3c6a8a1cb47afa674