$params = [ 'src' => $path, 'headers' => $headers, 'options' => $optHeaders ];
// T172851: HHVM does not flush the output properly, causing OOM
$params = [ 'src' => $path, 'headers' => $headers, 'options' => $optHeaders ];
// T172851: HHVM does not flush the output properly, causing OOM