Assets:precompile error

Good day!
That to do this operation on the server and
all times during my mistakes. Part has already won, and what to do with
the mind
is not
accompanied by:

sh: line 1: 2205 Segmentation error node / tmp /
execjs20120621-2199-i0u689.js 2> & 1

Can anyone faced with similar?

It seems to say

it cant execjs, and the type should be used therubyracer, but
uses uglifier ', and even rubyracer not find such a gem.