Hmbown/CodeWhale · error

failed to fetch release redirect from

Error message

failed to fetch release redirect from {url}: HTTP {status}
{body}

What it means

Thrown when the HTTP request for the GitHub release-redirect page returns a non-success status. The updater includes the status code and response body so the developer can see exactly what the server (or an intermediary) returned instead of the release page.

Solutions

1. Read the HTTP status and body in the message: 403/429 means rate limited — wait or authenticate GH_TOKEN; 404 means the release URL is wrong.
2. Check GitHub status / retry after a short delay for transient 5xx.
3. Bypass proxies or allowlist github.com in the firewall.
4. Update manually by downloading the release artifact.

match updater::resolve_latest_tag() {
    Err(e) if e.to_string().contains("HTTP 403") || e.to_string().contains("HTTP 429") => {
        tokio::time::sleep(Duration::from_secs(60)).await; // rate limit: back off and retry
        updater::resolve_latest_tag()
    }
    Err(e) if e.to_string().contains("HTTP 5") => {
        // transient server error: exponential backoff retry
        retry_with_backoff(3, updater::resolve_latest_tag).await
    }
    other => other,
}

When it happens

Trigger: Self-update issues the release-redirect request and receives HTTP 403/404/5xx or similar; the error message carries the status and body text.

Common situations: Rate limiting by GitHub (403 with rate-limit JSON), release URL changed or removed (404), corporate proxy blocking GitHub, transient GitHub 5xx outage.

Understand the failure class

Background: "API error: {status}" and "HTTP 401/403/404/429/5xx" errors: non-2xx HTTP responses explained — this error's family across 27 libraries.

Related errors

• failed to fetch from : HTTP
• download failed with HTTP
• failed to fetch from
• failed to resolve latest stable release from
• release redirect did not resolve to a tag URL

AI-assisted analysis of Hmbown/CodeWhale@73e0f67d83 (2026-09-22). Data as JSON: /api/errors/5e3cdb815bb3ca33. Report an issue: GitHub.

Appendix: source

Thrown at crates/cli/src/update.rs:1514

    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()
            .with_context(|| format!("failed to read release redirect response from {url}"))?;
        if let Some(tag_name) = release_tag_from_github_release_html(&body) {
            return Ok(tag_name);
        }
        bail!("release redirect did not resolve to a tag URL: {final_url}");
    }

    let body = response
        .text()
        .with_context(|| format!("failed to read release redirect response from {url}"))?;
    bail!("failed to fetch release redirect from {url}: HTTP {status}\n{body}");
}

fn release_tag_from_github_release_url(url: &reqwest::Url) -> Option<String> {
    let segments = url.path_segments()?.collect::<Vec<_>>();
    segments
        .windows(3)
        .find(|window| window[0] == "releases" && window[1] == "tag")
        .map(|window| window[2].to_string())
        .filter(|tag| !tag.is_empty())
}

fn release_tag_from_github_release_html(body: &str) -> Option<String> {
    const MARKERS: &[&str] = &[
        "/Hmbown/CodeWhale/releases/tag/",
        "/hmbown/CodeWhale/releases/tag/",
        "/releases/tag/",
    ];
    for marker in MARKERS {

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