python - lxml installation error ubuntu 14.04 (internal compiler error) -

i having problems installing lxml. have tried solutions of relative questions in site , other sites not fix problem. need suggestions/solution on this.

i providing full log after executing pip install lxml,

downloading/unpacking lxml   downloading lxml-3.3.5.tar.gz (3.5mb): 3.5mb downloaded   running setup.py (path:/tmp/pip_build_root/lxml/setup.py) egg_info package lxml     /usr/lib/python2.7/distutils/dist.py:267: userwarning: unknown distribution option: 'bugtrack_url'       warnings.warn(msg)     building lxml version 3.3.5.     building without cython.     using build configuration of libxslt 1.1.28      warning: no previously-included files found matching '*.py' installing collected packages: lxml   running setup.py install lxml     /usr/lib/python2.7/distutils/dist.py:267: userwarning: unknown distribution option: 'bugtrack_url'       warnings.warn(msg)     building lxml version 3.3.5.     building without cython.     using build configuration of libxslt 1.1.28     building 'lxml.etree' extension     x86_64-linux-gnu-gcc -pthread -fno-strict-aliasing -dndebug -g -fwrapv -o2 -wall -wstrict-prototypes -fpic -i/usr/include/libxml2 -i/tmp/pip_build_root/lxml/src/lxml/includes -i/usr/include/python2.7 -c src/lxml/lxml.etree.c -o build/temp.linux-x86_64-2.7/src/lxml/lxml.etree.o -w     x86_64-linux-gnu-gcc: internal compiler error: killed (program cc1)     please submit full bug report,     preprocessed source if appropriate.     see <file:///usr/share/doc/gcc-4.8/readme.bugs> instructions.     error: command 'x86_64-linux-gnu-gcc' failed exit status 4     complete output command /usr/bin/python -c "import setuptools, tokenize;__file__='/tmp/pip_build_root/lxml/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-kuq9vd-record/install-record.txt --single-version-externally-managed --compile:     /usr/lib/python2.7/distutils/dist.py:267: userwarning: unknown distribution option: 'bugtrack_url'    warnings.warn(msg)  building lxml version 3.3.5.  building without cython.  using build configuration of libxslt 1.1.28  running install  running build  running build_py  creating build  creating build/lib.linux-x86_64-2.7  creating build/lib.linux-x86_64-2.7/lxml  copying src/lxml/pyclasslookup.py -> build/lib.linux-x86_64-2.7/lxml  copying src/lxml/doctestcompare.py -> build/lib.linux-x86_64-2.7/lxml  copying src/lxml/builder.py -> build/lib.linux-x86_64-2.7/lxml  copying src/lxml/cssselect.py -> build/lib.linux-x86_64-2.7/lxml  copying src/lxml/sax.py -> build/lib.linux-x86_64-2.7/lxml  copying src/lxml/_elementpath.py -> build/lib.linux-x86_64-2.7/lxml  copying src/lxml/elementinclude.py -> build/lib.linux-x86_64-2.7/lxml  copying src/lxml/__init__.py -> build/lib.linux-x86_64-2.7/lxml  copying src/lxml/usedoctest.py -> build/lib.linux-x86_64-2.7/lxml  creating build/lib.linux-x86_64-2.7/lxml/includes  copying src/lxml/includes/__init__.py -> build/lib.linux-x86_64-2.7/lxml/includes  creating build/lib.linux-x86_64-2.7/lxml/html  copying src/lxml/html/html5parser.py -> build/lib.linux-x86_64-2.7/lxml/html  copying src/lxml/html/elementsoup.py -> build/lib.linux-x86_64-2.7/lxml/html  copying src/lxml/html/builder.py -> build/lib.linux-x86_64-2.7/lxml/html  copying src/lxml/html/clean.py -> build/lib.linux-x86_64-2.7/lxml/html  copying src/lxml/html/_diffcommand.py -> build/lib.linux-x86_64-2.7/lxml/html  copying src/lxml/html/diff.py -> build/lib.linux-x86_64-2.7/lxml/html  copying src/lxml/html/_html5builder.py -> build/lib.linux-x86_64-2.7/lxml/html  copying src/lxml/html/_setmixin.py -> build/lib.linux-x86_64-2.7/lxml/html  copying src/lxml/html/defs.py -> build/lib.linux-x86_64-2.7/lxml/html  copying src/lxml/html/formfill.py -> build/lib.linux-x86_64-2.7/lxml/html  copying src/lxml/html/soupparser.py -> build/lib.linux-x86_64-2.7/lxml/html  copying src/lxml/html/__init__.py -> build/lib.linux-x86_64-2.7/lxml/html  copying src/lxml/html/usedoctest.py -> build/lib.linux-x86_64-2.7/lxml/html  creating build/lib.linux-x86_64-2.7/lxml/isoschematron  copying src/lxml/isoschematron/__init__.py -> build/lib.linux-x86_64-2.7/lxml/isoschematron  copying src/lxml/lxml.etree.h -> build/lib.linux-x86_64-2.7/lxml  copying src/lxml/lxml.etree_api.h -> build/lib.linux-x86_64-2.7/lxml  copying src/lxml/includes/config.pxd -> build/lib.linux-x86_64-2.7/lxml/includes  copying src/lxml/includes/xpath.pxd -> build/lib.linux-x86_64-2.7/lxml/includes  copying src/lxml/includes/tree.pxd -> build/lib.linux-x86_64-2.7/lxml/includes  copying src/lxml/includes/dtdvalid.pxd -> build/lib.linux-x86_64-2.7/lxml/includes  copying src/lxml/includes/xmlparser.pxd -> build/lib.linux-x86_64-2.7/lxml/includes  copying src/lxml/includes/etreepublic.pxd -> build/lib.linux-x86_64-2.7/lxml/includes  copying src/lxml/includes/xslt.pxd -> build/lib.linux-x86_64-2.7/lxml/includes  copying src/lxml/includes/schematron.pxd -> build/lib.linux-x86_64-2.7/lxml/includes  copying src/lxml/includes/uri.pxd -> build/lib.linux-x86_64-2.7/lxml/includes  copying src/lxml/includes/c14n.pxd -> build/lib.linux-x86_64-2.7/lxml/includes  copying src/lxml/includes/xinclude.pxd -> build/lib.linux-x86_64-2.7/lxml/includes  copying src/lxml/includes/xmlschema.pxd -> build/lib.linux-x86_64-2.7/lxml/includes  copying src/lxml/includes/xmlerror.pxd -> build/lib.linux-x86_64-2.7/lxml/includes  copying src/lxml/includes/relaxng.pxd -> build/lib.linux-x86_64-2.7/lxml/includes  copying src/lxml/includes/htmlparser.pxd -> build/lib.linux-x86_64-2.7/lxml/includes  copying src/lxml/includes/etree_defs.h -> build/lib.linux-x86_64-2.7/lxml/includes  copying src/lxml/includes/lxml-version.h -> build/lib.linux-x86_64-2.7/lxml/includes  creating build/lib.linux-x86_64-2.7/lxml/isoschematron/resources  creating build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/rng  copying src/lxml/isoschematron/resources/rng/iso-schematron.rng -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/rng  creating build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl  copying src/lxml/isoschematron/resources/xsl/rng2schtrn.xsl -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl  copying src/lxml/isoschematron/resources/xsl/xsd2schtrn.xsl -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl  creating build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1  copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_schematron_skeleton_for_xslt1.xsl -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1  copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_dsdl_include.xsl -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1  copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_schematron_message.xsl -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1  copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_svrl_for_xslt1.xsl -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1  copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_abstract_expand.xsl -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1  copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/readme.txt -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1  running build_ext  building 'lxml.etree' extension  creating build/temp.linux-x86_64-2.7  creating build/temp.linux-x86_64-2.7/src  creating build/temp.linux-x86_64-2.7/src/lxml  x86_64-linux-gnu-gcc -pthread -fno-strict-aliasing -dndebug -g -fwrapv -o2 -wall -wstrict-prototypes -fpic -i/usr/include/libxml2 -i/tmp/pip_build_root/lxml/src/lxml/includes -i/usr/include/python2.7 -c src/lxml/lxml.etree.c -o build/temp.linux-x86_64-2.7/src/lxml/lxml.etree.o -w  x86_64-linux-gnu-gcc: internal compiler error: killed (program cc1)  please submit full bug report,  preprocessed source if appropriate.  see <file:///usr/share/doc/gcc-4.8/readme.bugs> instructions.  error: command 'x86_64-linux-gnu-gcc' failed exit status 4  ---------------------------------------- cleaning up... command /usr/bin/python -c "import setuptools, tokenize;__file__='/tmp/pip_build_root/lxml/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-kuq9vd-record/install-record.txt --single-version-externally-managed --compile failed error code 1 in /tmp/pip_build_root/lxml storing debug log failure in /root/.pip/pip.log 

also, pip.log file looks this,

status = self.run(options, args)   file "/usr/lib/python2.7/dist-packages/pip/commands/install.py", line 283, in run     requirement_set.install(install_options, global_options, root=options.root_path)   file "/usr/lib/python2.7/dist-packages/pip/req.py", line 1435, in install     requirement.install(install_options, global_options, *args, **kwargs)   file "/usr/lib/python2.7/dist-packages/pip/req.py", line 706, in install     cwd=self.source_dir, filter_stdout=self._filter_install, show_stdout=false)   file "/usr/lib/python2.7/dist-packages/pip/util.py", line 697, in call_subprocess     % (command_desc, proc.returncode, cwd)) installationerror: command /usr/bin/python -c "import setuptools, tokenize;__file__='/tmp/pip_build_root/lxml/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-kuq9vd-record/install-record.txt --single-version-externally-managed --compile failed error code 1 in /tmp/pip_build_root/lxml 

dmesg | tail command shows output this,

[1744367.676147] out of memory: kill process 25518 (cc1) score 388 or sacrifice child [1744367.676665] killed process 25518 (cc1) total-vm:242352kb, anon-rss:200608kb, file-rss:0kb 

it's seems memory issue. taking reference form this question

in particular case, has nothing dependencies, it's memory problem.

i had problem within virtualbox vm. solution increase memory allocated vm default 512mb 1024mb.