slapos_crm: Check if the slapgrid is staled whenever check if the computer is down

See merge request !468
14 jobs for master in 0 seconds
Status Job ID Name Coverage
  External
failed SlapOS-Master.UnitTest-Master

03:17:12

passed SlapOS.Eggs.UnitTest-Master.Python2

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passed SlapOS.Eggs.UnitTest-Master.Python3

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failed SlapOS-Master.UnitTest-Master

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failed SlapOS-Master.UnitTest-Master

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failed SlapOS-Master.UnitTest-Master

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failed SlapOS-Master.UnitTest-Master

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failed SlapOS-Master.UnitTest-Master

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failed SlapOS-Master.UnitTest-Master

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failed SlapOS-Master.UnitTest-Master

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failed SlapOS-Master.UnitTest-Master

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failed SlapOS-Master.UnitTest-Master

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failed SlapOS-Master.UnitTest-Master

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failed SlapOS-Master.UnitTest-Master

00:28:48