Back out my hotplug failure check.
Back out my hotplug failure check.

Redirecting STDERR to STDOUT in the child of a pipe open, when inside
an eval, scrogs STDERR in the parent until the eval returns, so output
was getting lost.

nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome