rust-analyzer fails on this repository

[e00E]

When I open this repository in vscode with rust-analyzer (both release and preview) it errors with

rust-analyzer failed to run build scripts

The log shows

[ERROR project_model::workspace] cyclic deps: sqlx_core(CrateId(246)) -> sqlx(CrateId(218)), alternative path: sqlx(CrateId(218)) -> sqlx_core(CrateId(246))
[ERROR project_model::workspace] cyclic deps: sqlx_test(CrateId(255)) -> sqlx(CrateId(218)), alternative path: sqlx(CrateId(218)) -> sqlx_test(CrateId(255))
[ERROR rust_analyzer::lsp_utils] rust-analyzer failed to run build scripts

error: only one of ['runtime-actix-native-tls', 'runtime-async-std-native-tls', 'runtime-tokio-native-tls', 'runtime-actix-rustls', 'runtime-async-std-rustls', 'runtime-tokio-rustls'] can be enabled
  --> sqlx-rt/src/lib.rs:21:1
   |
21 | / compile_error!(
22 | |     "only one of ['runtime-actix-native-tls', 'runtime-async-std-native-tls', \
23 | |      'runtime-tokio-native-tls', 'runtime-actix-rustls', 'runtime-async-std-rustls', \
24 | |      'runtime-tokio-rustls'] can be enabled"
25 | | );
   | |_^


error: aborting due to previous error


error: could not compile `sqlx-rt` due to 2 previous errors

My rust-analyzer config is

{
    "rust-analyzer.cargo.features": [
        "runtime-tokio-native-tls"
    ],
    "rust-analyzer.checkOnSave.features": [
        "runtime-tokio-native-tls"
    ],
}

Note that cargo check --features runtime-tokio-native-tls --all-targets works.

Rust-analyzer is very useful during development so I would like it to work. I am not sure if this is something that should be fixed here or a bug in rust-analyzer. Is this problem known? Is there a workaround that fixes it?

[Kinrany]

Is out of the box rust-analyzer support basically blocked on refactoring Cargo features to be additive?

[abonander]

If this is the error it's dying on then that would probably fix it, but I wouldn't say it's an issue of SQLx "supporting" rust-analyzer or not, which is why I converted this from an issue to a discussion.

[crepererum]

I think the problem here is that rust-analyzer uses cargo check --workspace ... to scan the entire workspace and this one currently does NOT work out of the box:

❯ cargo check --workspace
   Compiling sqlx-rt v0.5.10 (/home/mneumann/src/sqlx/sqlx-rt)
error: only one of ['runtime-actix-native-tls', 'runtime-async-std-native-tls', 'runtime-tokio-native-tls', 'runtime-actix-rustls', 'runtime-async-std-rustls', 'runtime-tokio-rustls'] can be enabled
  --> sqlx-rt/src/lib.rs:21:1
   |
21 | / compile_error!(
22 | |     "only one of ['runtime-actix-native-tls', 'runtime-async-std-native-tls', \
23 | |      'runtime-tokio-native-tls', 'runtime-actix-rustls', 'runtime-async-std-rustls', \
24 | |      'runtime-tokio-rustls'] can be enabled"
25 | | );
   | |_^

error: could not compile `sqlx-rt` due to previous error
warning: build failed, waiting for other jobs to finish...
error: could not compile `sqlx-rt` due to previous error
error: could not compile `sqlx-rt` due to previous error

So I think this isn't a rust-analyzer issue but rather a SQLx build system bug.

[crepererum]

Should be fixed by #1988.