pyquery install error

gistfile1.txt

warning: no files found matching '*.txt' under directory 'src/lxml/tests'
src/lxml/lxml.etree.c: In function '__pyx_f_4lxml_5etree__getFilenameForFile':
src/lxml/lxml.etree.c:26088:7: warning: variable '__pyx_clineno' set but not used [-Wunused-but-set-variable]
src/lxml/lxml.etree.c:26087:15: warning: variable '__pyx_filename' set but not used [-Wunused-but-set-variable]
src/lxml/lxml.etree.c:26086:7: warning: variable '__pyx_lineno' set but not used [-Wunused-but-set-variable]
src/lxml/lxml.etree.c: In function '__pyx_pf_4lxml_5etree_4XSLT_18__call__':
src/lxml/lxml.etree.c:132276:81: warning: passing argument 1 of '__pyx_f_4lxml_5etree_12_XSLTContext__copy' from incompatible pointer type [enabled by default]
src/lxml/lxml.etree.c:130237:52: note: expected 'struct __pyx_obj_4lxml_5etree__XSLTContext *' but argument is of type 'struct __pyx_obj_4lxml_5etree__BaseContext *'
src/lxml/lxml.etree.c: In function '__pyx_f_4lxml_5etree__copyXSLT':
src/lxml/lxml.etree.c:133665:79: warning: passing argument 1 of '__pyx_f_4lxml_5etree_12_XSLTContext__copy' from incompatible pointer type [enabled by default]
src/lxml/lxml.etree.c:130237:52: note: expected 'struct __pyx_obj_4lxml_5etree__XSLTContext *' but argument is of type 'struct __pyx_obj_4lxml_5etree__BaseContext *'
src/lxml/lxml.etree.c: At top level:
src/lxml/lxml.etree.c:11906:13: warning: '__pyx_f_4lxml_5etree_displayNode' defined but not used [-Wunused-function]
gcc: internal compiler error: Killed (program cc1)
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.6/README.Bugs> for instructions.
error: Setup script exited with error: command 'gcc' failed with exit status 4