@Deprecated(since = "1.0.2", forRemoval = true)
    public static Page fail(Request request){
        Page page = new Page();
        page.setRequest(request);
        page.setDownloadSuccess(false);
        return page;
    }
Returns a {@link Page} with {@link #downloadSuccess} is {@code false},
and {@link #request} is specified.

@param request the {@link Request}.
@return the page.
@since 0.10.0
@deprecated Use {@link #ofFailure(Request)} instead.
webmagic-core/src/main/java/us/codecraft/webmagic/Page.java