Go vs Zig error handling

writer.go

func WriteResponse(w io.Writer, st Status, headers []Header, body io.Reader) error {
	_, err := fmt.Fprintf(w, "HTTP/1.1 %d %s\r\n", st.Code, st.Reason)
	if err != nil {
		return err
	}

	for _, h := range headers {
		_, err := fmt.Fprintf(w, "%s: %s\r\n", h.Key, h.Value)
		if err != nil {
			return err
		}
	}

	if _, err := fmt.Fprint(w, "\r\n"); err != nil {
		return err
	} 

	_, err = io.Copy(w, body) 
	return err
}

writer.zig

pub fn writeResponse(w: io.Writer, st: Status, headers: []Header, body: io.Reader) !void {
    try fmt.fprintf(w, "HTTP/1.1 %d %s\r\n", st.Code, st.Reason);

    for (headers) |h| {
        try fmt.fprintf(w, "%s: %s\r\n", h.Key, h.Value);
    }

    try fmt.fprint(w, "\r\n");

    _ = try io.Copy(w, body);
}