unreadable error output during make simple-test

[2016-09-03 11:13:35,998] - [remote_util:2292] INFO - running command.raw on 127.0.0.1: kill $(ps aux | grep 'memcached'  | awk '{print $2}')

[2016-09-03 11:13:36,061] - [remote_util:2329] INFO - command executed successfully

[2016-09-03 11:13:36,062] - [remote_util:2099] ERROR - /

[2016-09-03 11:13:36,062] - [remote_util:2099] ERROR - b

[2016-09-03 11:13:36,062] - [remote_util:2099] ERROR - i

[2016-09-03 11:13:36,063] - [remote_util:2099] ERROR - n

[2016-09-03 11:13:36,063] - [remote_util:2099] ERROR - /

[2016-09-03 11:13:36,063] - [remote_util:2099] ERROR - s

[2016-09-03 11:13:36,064] - [remote_util:2099] ERROR - h

[2016-09-03 11:13:36,064] - [remote_util:2099] ERROR - :

[2016-09-03 11:13:36,064] - [remote_util:2099] ERROR -  

[2016-09-03 11:13:36,065] - [remote_util:2099] ERROR - l

[2016-09-03 11:13:36,065] - [remote_util:2099] ERROR - i

[2016-09-03 11:13:36,065] - [remote_util:2099] ERROR - n

[2016-09-03 11:13:36,065] - [remote_util:2099] ERROR - e

[2016-09-03 11:13:36,066] - [remote_util:2099] ERROR -  

[2016-09-03 11:13:36,066] - [remote_util:2099] ERROR - 0

[2016-09-03 11:13:36,066] - [remote_util:2099] ERROR - :

[2016-09-03 11:13:36,066] - [remote_util:2099] ERROR -  

[2016-09-03 11:13:36,067] - [remote_util:2099] ERROR - k

[2016-09-03 11:13:36,067] - [remote_util:2099] ERROR - i

[2016-09-03 11:13:36,067] - [remote_util:2099] ERROR - l

[2016-09-03 11:13:36,067] - [remote_util:2099] ERROR - l

[2016-09-03 11:13:36,068] - [remote_util:2099] ERROR - :

[2016-09-03 11:13:36,068] - [remote_util:2099] ERROR -  

[2016-09-03 11:13:36,068] - [remote_util:2099] ERROR - (

[2016-09-03 11:13:36,068] - [remote_util:2099] ERROR - 9

[2016-09-03 11:13:36,069] - [remote_util:2099] ERROR - 9

[2016-09-03 11:13:36,069] - [remote_util:2099] ERROR - 7

[2016-09-03 11:13:36,069] - [remote_util:2099] ERROR - 6

[2016-09-03 11:13:36,070] - [remote_util:2099] ERROR - )

[2016-09-03 11:13:36,070] - [remote_util:2099] ERROR -  

[2016-09-03 11:13:36,070] - [remote_util:2099] ERROR - -

[2016-09-03 11:13:36,071] - [remote_util:2099] ERROR -  

[2016-09-03 11:13:36,071] - [remote_util:2099] ERROR - N

[2016-09-03 11:13:36,071] - [remote_util:2099] ERROR - o

[2016-09-03 11:13:36,071] - [remote_util:2099] ERROR -  

[2016-09-03 11:13:36,072] - [remote_util:2099] ERROR - s

[2016-09-03 11:13:36,072] - [remote_util:2099] ERROR - u

[2016-09-03 11:13:36,072] - [remote_util:2099] ERROR - c

[2016-09-03 11:13:36,072] - [remote_util:2099] ERROR - h

[2016-09-03 11:13:36,072] - [remote_util:2099] ERROR -  

[2016-09-03 11:13:36,073] - [remote_util:2099] ERROR - p

[2016-09-03 11:13:36,073] - [remote_util:2099] ERROR - r

[2016-09-03 11:13:36,073] - [remote_util:2099] ERROR - o

[2016-09-03 11:13:36,073] - [remote_util:2099] ERROR - c

[2016-09-03 11:13:36,074] - [remote_util:2099] ERROR - e

[2016-09-03 11:13:36,074] - [remote_util:2099] ERROR - s

[2016-09-03 11:13:36,074] - [remote_util:2099] ERROR - s

[2016-09-03 11:13:36,074] - [remote_util:2099] ERROR - 

[2016-09-03 11:13:36,075] - [remote_util:2099] ERROR - /

[2016-09-03 11:13:36,075] - [remote_util:2099] ERROR - b

[2016-09-03 11:13:36,075] - [remote_util:2099] ERROR - i

[2016-09-03 11:13:36,075] - [remote_util:2099] ERROR - n

[2016-09-03 11:13:36,076] - [remote_util:2099] ERROR - /

[2016-09-03 11:13:36,077] - [remote_util:2099] ERROR - s

[2016-09-03 11:13:36,077] - [remote_util:2099] ERROR - h

[2016-09-03 11:13:36,077] - [remote_util:2099] ERROR - :

[2016-09-03 11:13:36,078] - [remote_util:2099] ERROR -  

[2016-09-03 11:13:36,078] - [remote_util:2099] ERROR - l

[2016-09-03 11:13:36,078] - [remote_util:2099] ERROR - i

[2016-09-03 11:13:36,078] - [remote_util:2099] ERROR - n

[2016-09-03 11:13:36,079] - [remote_util:2099] ERROR - e

[2016-09-03 11:13:36,079] - [remote_util:2099] ERROR -  

[2016-09-03 11:13:36,079] - [remote_util:2099] ERROR - 0

[2016-09-03 11:13:36,079] - [remote_util:2099] ERROR - :

[2016-09-03 11:13:36,080] - [remote_util:2099] ERROR -  

[2016-09-03 11:13:36,080] - [remote_util:2099] ERROR - k

[2016-09-03 11:13:36,080] - [remote_util:2099] ERROR - i

[2016-09-03 11:13:36,080] - [remote_util:2099] ERROR - l

[2016-09-03 11:13:36,081] - [remote_util:2099] ERROR - l

[2016-09-03 11:13:36,081] - [remote_util:2099] ERROR - :

[2016-09-03 11:13:36,089] - [remote_util:2099] ERROR -  

[2016-09-03 11:13:36,089] - [remote_util:2099] ERROR - (

[2016-09-03 11:13:36,090] - [remote_util:2099] ERROR - 9

[2016-09-03 11:13:36,090] - [remote_util:2099] ERROR - 9

[2016-09-03 11:13:36,091] - [remote_util:2099] ERROR - 7

[2016-09-03 11:13:36,091] - [remote_util:2099] ERROR - 4

[2016-09-03 11:13:36,092] - [remote_util:2099] ERROR - )

[2016-09-03 11:13:36,092] - [remote_util:2099] ERROR -  

[2016-09-03 11:13:36,092] - [remote_util:2099] ERROR - -

[2016-09-03 11:13:36,093] - [remote_util:2099] ERROR -  

[2016-09-03 11:13:36,093] - [remote_util:2099] ERROR - N

[2016-09-03 11:13:36,093] - [remote_util:2099] ERROR - o

[2016-09-03 11:13:36,093] - [remote_util:2099] ERROR -  

[2016-09-03 11:13:36,094] - [remote_util:2099] ERROR - s

[2016-09-03 11:13:36,094] - [remote_util:2099] ERROR - u

[2016-09-03 11:13:36,094] - [remote_util:2099] ERROR - c

[2016-09-03 11:13:36,094] - [remote_util:2099] ERROR - h

[2016-09-03 11:13:36,095] - [remote_util:2099] ERROR -  

[2016-09-03 11:13:36,095] - [remote_util:2099] ERROR - p

[2016-09-03 11:13:36,095] - [remote_util:2099] ERROR - r

[2016-09-03 11:13:36,095] - [remote_util:2099] ERROR - o

[2016-09-03 11:13:36,096] - [remote_util:2099] ERROR - c

[2016-09-03 11:13:36,096] - [remote_util:2099] ERROR - e

[2016-09-03 11:13:36,096] - [remote_util:2099] ERROR - s

[2016-09-03 11:13:36,097] - [remote_util:2099] ERROR - s

[2016-09-03 11:13:36,097] - [remote_util:2099] ERROR -