astral-sh/uv · error · reqwest_middleware::Error::Middleware

Request object is not cloneable. Are you passing a streaming

Error message

Request object is not cloneable. Are you passing a streaming body?

What it means

Error "Request object is not cloneable. Are you passing a streaming body?" thrown in astral-sh/uv.

Source

Thrown at crates/uv-auth/src/middleware.rs:458

                    AuthPolicy::Never => false,
                }
                // Dependabot intercepts HTTP requests and injects credentials, which means that we
                // cannot eagerly enforce an `AuthPolicy` as we don't know whether credentials will be
                // added outside of uv.
                && !*IS_DEPENDABOT);

        let (mut retry_request, response) = if !must_authenticate {
            let url = tracing_url(&request, credentials.as_deref());
            if credentials.is_none() {
                trace!("Attempting unauthenticated request for {url}");
            } else {
                trace!("Attempting partially authenticated request for {url}");
            }

            // <https://github.com/TrueLayer/reqwest-middleware/blob/abdf1844c37092d323683c2396b7eefda1418d3c/reqwest-retry/src/middleware.rs#L141-L149>
            // Clone the request so we can retry it on authentication failure
            let retry_request = request.try_clone().ok_or_else(|| {
                Error::Middleware(anyhow!(
                    "Request object is not cloneable. Are you passing a streaming body?"
                        .to_string()
                ))
            })?;

            let response = next.clone().run(request, extensions).await?;

            // If we don't fail with authorization related codes or
            // authentication policy is Never, return the response.
            if !matches!(
                response.status(),
                StatusCode::FORBIDDEN | StatusCode::NOT_FOUND | StatusCode::UNAUTHORIZED
            ) || matches!(auth_policy, AuthPolicy::Never)
            {
                return Ok(response);
            }

            // Otherwise, search for credentials

View on GitHub (pinned to f1a42680ff)

When it happens

Trigger: Thrown at crates/uv-auth/src/middleware.rs:458 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of astral-sh/uv@f1a42680ff (2026-08-16). Data as JSON: /api/errors/f805a6c8570dd2b0. Report an issue: GitHub.