streaming test fails with MemoryError

[bardov]

./test_all.sh
++ dirname ./test_all.sh

• dir=.
• cd .
• ./build.sh
  running build
  running build_ext
• ./test_Rabin.py
  100+0 records in
  100+0 records out
  102400 bytes (102 kB) copied, 0.026783 s, 3.8 MB/s
  passed
• ./test_delta.py
  10+0 records in
  10+0 records out
  10485760 bytes (10 MB) copied, 0.783417 s, 13.4 MB/s
  after (5241566L, 1933, 4826311527138839087L)
  before (5241566L, 1933, 3150235191146187694L)
  passed
• ./test_insert.py
  10+0 records in
  10+0 records out
  10485760 bytes (10 MB) copied, 0.797579 s, 13.1 MB/s
  before (5242866L, 1610, 11844338887877786677L)
  after (5242866L, 1611, 4561145486537615771L)
  passed
• ./test_split.sh
  [] Generating a random file "file.bin" ... done
  [] Splitting file.bin to rabin chunks ... done
  [] Reconstructing "rabin.bin" with rabin chunks ...done
  [] Checking if sha1sum of file.bin and rabin.bin are identical ... passed
• ./test_streaming.py
  seed 0.264361718533
  Traceback (most recent call last):
  File "./test_streaming.py", line 42, in
  from guppy import hpy; hp=hpy()
  File "/usr/lib/pymodules/python2.7/guppy/init.py", line 18, in
  from guppy.etc.Glue import Root # Get main Guppy entry point
  MemoryError
  Error in sys.excepthook:
  Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/apport_python_hook.py", line 66, in apport_excepthook
  from apport.fileutils import likely_packaged, get_recent_crashes
  File "/usr/lib/python2.7/dist-packages/apport/init.py", line 1, in
  from apport.report import Report
  File "/usr/lib/python2.7/dist-packages/apport/report.py", line 12, in
  import subprocess, tempfile, os.path, urllib, re, pwd, grp, os
  MemoryError

Original exception was:
Traceback (most recent call last):
File "./test_streaming.py", line 42, in
from guppy import hpy; hp=hpy()
File "/usr/lib/pymodules/python2.7/guppy/init.py", line 18, in
from guppy.etc.Glue import Root # Get main Guppy entry point
MemoryError

==== platform info
danb@ubun2-danb test $ uname -a
Linux ubun2-danb 3.2.0-74-generic #109-Ubuntu SMP Tue Dec 9 16:45:49 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
danb@ubun2-danb test $ cat /etc/issue
Ubuntu 12.04.5 LTS \n \l