Intermittent failure /html/rendering/non-replaced-elements/the-page/body-margin-1h.html

[ferjm]

{
    "status": "FAIL", 
    "group": "default", 
    "message": "/html/rendering/non-replaced-elements/the-page/body-margin-1h.html 5316866e6318a21a35938e62c24d004557b3c228\n/html/rendering/non-replaced-elements/the-page/body-margin-1-ref.html e705db38dd4759e4e56db6e56b6b7e0c7f79034c", 
    "stack": null, 
    "subtest": null, 
    "test": "/html/rendering/non-replaced-elements/the-page/body-margin-1h.html", 
    "line": 87301, 
    "action": "test_result", 
    "expected": "PASS"
}