sci-libs/scipy-0.19.1::science-kit USE="sparse -doc {-test}" PYTHON_TARGETS="python2_7 python3_6 -python3_4 -python3_5" fails to build without error message.

• Messages for package sci-libs/scipy-0.19.1:
• ERROR: sci-libs/scipy-0.19.1::science-kit failed (compile phase):
• (no error message)
  *
• Call stack:
• ebuild.sh, line 124: Called src_compile
• environment, line 4344: Called distutils-r1_src_compile
• environment, line 1276: Called _distutils-r1_run_foreach_impl 'python_compile'
• environment, line 358: Called python_foreach_impl 'distutils-r1_run_phase' 'python_compile'
• environment, line 3768: Called multibuild_foreach_variant '_python_multibuild_wrapper' 'distutils-r1_run_phase' 'python_compile'
• environment, line 2840: Called _multibuild_run '_python_multibuild_wrapper' 'distutils-r1_run_phase' 'python_compile'
• environment, line 2838: Called _python_multibuild_wrapper 'distutils-r1_run_phase' 'python_compile'
• environment, line 839: Called distutils-r1_run_phase 'python_compile'
• environment, line 1269: Called python_compile
• environment, line 3356: Called distutils-r1_python_compile 'j' '9' 'config_fc' 'noopt' '-noarch'
• environment, line 1144: Called esetup.py 'build' 'j' '9' 'config_fc' 'noopt' '-noarch'
• environment, line 1849: Called die
• The specific snippet of code:
• "${@}" || die "${die_args[@]}";

Unfortunatly, I cannot upload the build.log, due to an internal server error of JIRA, I'll try to upload it later on.