Hmbown/CodeWhale · error · anyhow::Error

failed to resolve latest stable release from {url}

Error message

failed to resolve latest stable release from {url}

What it means

Fallback arm of the retry loop that resolves the latest stable tag by following the GitHub releases/latest redirect. Real per-attempt failures keep their specific contexts ('failed to fetch release redirect from ...', missing tag, etc.); this generic message only appears when the loop ends with no recorded error, which cannot happen while UPDATE_HTTP_ATTEMPTS >= 1.

Source

Thrown at crates/cli/src/update.rs:1041

        std::env::consts::OS,
        std::env::consts::ARCH,
    ))
}

fn fetch_latest_stable_tag_from_redirect_url(url: &str, proxy: Option<&Proxy>) -> Result<String> {
    let client = update_http_client(proxy)?;
    let mut last_error = None;
    for attempt in 1..=UPDATE_HTTP_ATTEMPTS {
        match fetch_latest_stable_tag_from_redirect_url_once(&client, url) {
            Ok(tag_name) => return Ok(tag_name),
            Err(error) if attempt < UPDATE_HTTP_ATTEMPTS => {
                last_error = Some(error);
                sleep_before_update_retry(attempt);
            }
            Err(error) => return Err(error),
        }
    }
    Err(last_error.unwrap_or_else(|| anyhow!("failed to resolve latest stable release from {url}")))
}

fn fetch_latest_stable_tag_from_redirect_url_once(
    client: &reqwest::blocking::Client,
    url: &str,
) -> Result<String> {
    let response = client
        .get(url)
        .send()
        .with_context(|| format!("failed to fetch release redirect from {url}"))?;
    let status = response.status();
    let final_url = response.url().clone();
    if status.is_success() {
        if let Some(tag_name) = release_tag_from_github_release_url(&final_url) {
            return Ok(tag_name);
        }
        let body = response
            .text()

View on GitHub (pinned to 8880682c63)

Solutions

1. Treat as an internal invariant violation and report the build upstream
2. Reproduce the underlying behavior directly: curl -IL on the redirect URL to see the real per-attempt response
3. Keep UPDATE_HTTP_ATTEMPTS >= 1 if you maintain a fork

Retry the whole tag resolution with backoff on any error, but treat this exact message as internal (no cause attached); rely on the wrapped per-attempt errors for diagnosis.

When it happens

Trigger: Same unreachable condition as the other retry loops: the for-range completes with last_error still None. Realistic failures on this path surface as wrapped network or redirect-parsing errors instead.

Common situations: Not expected in shipped builds. When debugging tag resolution, the actionable errors are the wrapped ones from fetch_latest_stable_tag_from_redirect_url_once.

Related errors

• failed to fetch {description} from {url}
• failed to download {url}
• Runtime API request failed (${status}): ${message}
• iLink API ${endpoint} failed: HTTP ${response.status} — ${te
• failed to fetch {description} from {url}: HTTP {status} {bod

AI-assisted analysis of Hmbown/CodeWhale@8880682c63 (2026-08-16). Data as JSON: /api/errors/28e2646b38acf6ce. Report an issue: GitHub.