zed-industries/zed · error

Cargo metadata failed {stderr_msg}

Error message

Cargo metadata failed
 {stderr_msg}

What it means

In target_info_from_abs_path, the `cargo metadata --no-deps --format-version 1` subprocess exited non-zero; the command's stderr is embedded in the error to explain why project target info could not be gathered.

Source

Thrown at crates/languages/src/rust.rs:1289

    project_env: Option<&HashMap<String, String>>,
) -> Result<Option<(Option<TargetInfo>, Arc<Path>)>> {
    let mut command = util::command::new_command("cargo");
    if let Some(envs) = project_env {
        command.envs(envs);
    }
    let output = command
        .current_dir(
            abs_path
                .parent()
                .ok_or_else(|| anyhow::anyhow!("failed to get parent directory"))?,
        )
        .arg("metadata")
        .arg("--no-deps")
        .arg("--format-version")
        .arg("1")
        .output()
        .await?;

    if !output.status.success() {
        let stderr_msg = String::from_utf8_lossy(&output.stderr);
        anyhow::bail!("Cargo metadata failed\n {stderr_msg}");
    }

    let metadata: CargoMetadata = serde_json::from_slice(&output.stdout)?;
    Ok(target_info_from_metadata(metadata, abs_path))
}

fn target_info_from_metadata(
    metadata: CargoMetadata,
    abs_path: &Path,
) -> Option<(Option<TargetInfo>, Arc<Path>)> {
    let mut manifest_path = None;
    for package in metadata.packages {
        let Some(manifest_dir_path) = package.manifest_path.parent() else {
            continue;
        };

View on GitHub (pinned to 9d272b0363)

Solutions

1. Run `cargo metadata --no-deps --format-version 1` in the target directory to see the underlying error
2. Fix Cargo.toml syntax errors or unresolved dependencies reported by cargo
3. Ensure the directory is inside a valid Cargo workspace and cargo is on PATH

When it happens

Trigger: Thrown at crates/languages/src/rust.rs:1289 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of zed-industries/zed@9d272b0363 (2026-08-20). Data as JSON: /api/errors/753202d4f4c34cd8. Report an issue: GitHub.