openai/codex · error · anyhow::Error

CreatePipe stderr failed: {}

Error message

CreatePipe stderr failed: {}

What it means

Error "CreatePipe stderr failed: {}" thrown in openai/codex.

Source

Thrown at codex-rs/windows-sandbox-rs/src/process.rs:257

    let mut err_r: HANDLE = 0;
    let mut err_w: HANDLE = 0;
    unsafe {
        if CreatePipe(&mut in_r, &mut in_w, ptr::null_mut(), 0) == 0 {
            return Err(anyhow!("CreatePipe stdin failed: {}", GetLastError()));
        }
        if CreatePipe(&mut out_r, &mut out_w, ptr::null_mut(), 0) == 0 {
            CloseHandle(in_r);
            CloseHandle(in_w);
            return Err(anyhow!("CreatePipe stdout failed: {}", GetLastError()));
        }
        if matches!(stderr_mode, StderrMode::Separate)
            && CreatePipe(&mut err_r, &mut err_w, ptr::null_mut(), 0) == 0
        {
            CloseHandle(in_r);
            CloseHandle(in_w);
            CloseHandle(out_r);
            CloseHandle(out_w);
            return Err(anyhow!("CreatePipe stderr failed: {}", GetLastError()));
        }
    }

    let stderr_handle = match stderr_mode {
        StderrMode::MergeStdout => out_w,
        StderrMode::Separate => err_w,
    };

    let stdio = Some((in_r, out_w, stderr_handle));
    let spawn_result = unsafe {
        create_process_as_user(
            h_token,
            argv,
            cwd,
            env_map,
            logs_base_dir,
            stdio,
            console_mode,

View on GitHub (pinned to 339751715c)

When it happens

Trigger: Thrown at codex-rs/windows-sandbox-rs/src/process.rs:257 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of openai/codex@339751715c (2026-08-25). Data as JSON: /api/errors/2c138e6430660083. Report an issue: GitHub.