internal: Treat cfg fetching failures as a warning #18994
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If the user doesn't have rustc on $PATH, rust-analyzer won't be able to run `rustc --print cfg`. This isn't really an error, as rust-analyzer can still proceed without it. This is particularly noticeable when loading crates defined in a rust-project.json. Until the configuration is loaded, the opened files are briefly treated as detached files and users see this error. Environments with rust-project.json generally have a sysroot and rustc elsewhere, so the error confuses users.
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Jan 21, 2025
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If the user doesn't have rustc on $PATH, rust-analyzer won't be able to run
rustc --print cfg. This isn't really an error, as rust-analyzer can still proceed without it.This is particularly noticeable when loading crates defined in a rust-project.json. Until the configuration is loaded, the opened files are briefly treated as detached files and users see this error.
Environments with rust-project.json generally have a sysroot and rustc elsewhere, so the error confuses users.