Examples breake with Python toolchains (Bazel 0.27)

[laszlocsomor]

Same as #157, but for the "rules_jvm_external - examples" test.

https://buildkite.com/bazel/bazel-at-head-plus-downstream/builds/1017#c6a01850-dd28-4084-a6e7-23bbf367bd0d

ERROR: /var/lib/buildkite-agent/.cache/bazel/_bazel_buildkite-agent/8ab3d639e2adad62d28400e780405787/external/android_test_support/tools/android/emulated_devices/generic_phone/BUILD.bazel:43:1: Couldn't build file external/android_test_support/tools/android/emulated_devices/generic_phone/android_23_x86_qemu2_images/emulator-meta-data.pb: Creating Android image for @android_test_support//tools/android/emulated_devices/generic_phone:android_23_x86_qemu2 failed (Exit 1) unified_launcher_head failed: error executing command
--
  | (cd /var/lib/buildkite-agent/.cache/bazel/_bazel_buildkite-agent/8ab3d639e2adad62d28400e780405787/sandbox/linux-sandbox/324/execroot/__main__ && \
  | exec env - \
  | bazel-out/host/bin/external/android_test_support/tools/android/emulator/unified_launcher_head '--action=boot' '--density=240' '--memory=2048' '--cache=32' '--vm_size=256' '--generate_output_dir=bazel-out/host/bin/external/android_test_support/tools/android/emulated_devices/generic_phone/android_23_x86_qemu2_images' '--skin=480x800' '--source_properties_file=external/androidsdk/system-images/android-23/default/x86/source.properties' '--system_images=external/androidsdk/system-images/android-23/default/x86/NOTICE.txt external/androidsdk/system-images/android-23/default/x86/advancedFeatures.ini external/androidsdk/system-images/android-23/default/x86/build.prop external/androidsdk/system-images/android-23/default/x86/kernel-qemu external/androidsdk/system-images/android-23/default/x86/kernel-ranchu external/androidsdk/system-images/android-23/default/x86/package.xml external/androidsdk/system-images/android-23/default/x86/ramdisk.img external/androidsdk/system-images/android-23/default/x86/system.img external/androidsdk/system-images/android-23/default/x86/userdata.img external/androidsdk/emulator/emulator external/androidsdk/emulator/lib/advancedFeatures.ini external/androidsdk/emulator/lib/advancedFeaturesCanary.ini external/androidsdk/emulator/lib/ca-bundle.pem external/androidsdk/emulator/lib/emu-original-feature-flags.protobuf external/androidsdk/emulator/lib/emulator_controller.proto external/androidsdk/emulator/lib/hardware-properties.ini external/androidsdk/emulator/lib/pc-bios/bios-256k.bin external/androidsdk/emulator/lib/pc-bios/bios.bin external/androidsdk/emulator/lib/pc-bios/efi-e1000.rom external/androidsdk/emulator/lib/pc-bios/efi-e1000e.rom external/androidsdk/emulator/lib/pc-bios/efi-virtio.rom external/androidsdk/emulator/lib/pc-bios/keymaps/Makefile external/androidsdk/emulator/lib/pc-bios/keymaps/ar external/androidsdk/emulator/lib/pc-bios/keymaps/bepo external/androidsdk/emulator/lib/pc-bios/keymaps/common external/androidsdk/emulator/lib/pc-bios/keymaps/cz external/androidsdk/emulator/lib/pc-bios/keymaps/da external/androidsdk/emulator/lib/pc-bios/keymaps/de external/androidsdk/emulator/lib/pc-bios/keymaps/de-ch external/androidsdk/emulator/lib/pc-bios/keymaps/en-gb external/androidsdk/emulator/lib/pc-bios/keymaps/en-us external/androidsdk/emulator/lib/pc-bios/keymaps/es external/androidsdk/emulator/lib/pc-bios/keymaps/et external/androidsdk/emulator/lib/pc-bios/keymaps/fi external/androidsdk/emulator/lib/pc-bios/keymaps/fo external/androidsdk/emulator/lib/pc-bios/keymaps/fr external/androidsdk/emulator/lib/pc-bios/keymaps/fr-be external/androidsdk/emulator/lib/pc-bios/keymaps/fr-ca external/androidsdk/emulator/lib/pc-bios/keymaps/fr-ch external/androidsdk/emulator/lib/pc-bios/keymaps/hr external/androidsdk/emulator/lib/pc-bios/keymaps/hu external/androidsdk/emulator/lib/pc-bios/keymaps/is external/androidsdk/emulator/lib/pc-bios/keymaps/it external/androidsdk/emulator/lib/pc-bios/keymaps/ja external/androidsdk/emulator/lib/pc-bios/keymaps/lt external/androidsdk/emulator/lib/pc-bios/keymaps/lv external/androidsdk/emulator/lib/pc-bios/keymaps/mk external/androidsdk/emulator/lib/pc-bios/keymaps/modifiers external/androidsdk/emulator/lib/pc-bios/keymaps/nl external/androidsdk/emulator/lib/pc-bios/keymaps/nl-be external/androidsdk/emulator/lib/pc-bios/keymaps/no external/androidsdk/emulator/lib/pc-bios/keymaps/pl external/androidsdk/emulator/lib/pc-bios/keymaps/pt external/androidsdk/emulator/lib/pc-bios/keymaps/pt-br external/androidsdk/emulator/lib/pc-bios/keymaps/ru external/androidsdk/emulator/lib/pc-bios/keymaps/sl external/androidsdk/emulator/lib/pc-bios/keymaps/sv external/androidsdk/emulator/lib/pc-bios/keymaps/th external/androidsdk/emulator/lib/pc-bios/keymaps/tr external/androidsdk/emulator/lib/pc-bios/kvmvapic.bin external/androidsdk/emulator/lib/pc-bios/linuxboot.bin external/androidsdk/emulator/lib/pc-bios/linuxboot_dma.bin external/androidsdk/emulator/lib/pc-bios/multiboot.bin external/androidsdk/emulator/lib/pc-bios/vgabios-cirrus.bin external/androidsdk/emulator/lib/pc-bios/vgabios-stdvga.bin external/androidsdk/emulator/lib/pc-bios/vgabios-virtio.bin external/androidsdk/emulator/lib64/gles_mesa/libGL.so external/androidsdk/emulator/lib64/gles_mesa/libGL.so.1 external/androidsdk/emulator/lib64/gles_swiftshader/libEGL.so external/androidsdk/emulator/lib64/gles_swiftshader/libGLES_CM.so external/androidsdk/emulator/lib64/gles_swiftshader/libGLESv2.so external/androidsdk/emulator/lib64/libEGL_translator.so external/androidsdk/emulator/lib64/libGLES12Translator.so external/androidsdk/emulator/lib64/libGLES_CM_translator.so external/androidsdk/emulator/lib64/libGLES_V2_translator.so external/androidsdk/emulator/lib64/libOpenglRender.so external/androidsdk/emulator/lib64/libc++.so external/androidsdk/emulator/lib64/libc++.so.1 external/androidsdk/emulator/lib64/libemugl_common.so external/androidsdk/emulator/lib64/libtcmalloc_minimal.so.4 external/androidsdk/emulator/lib64/libunwind-x86_64.so.8 external/androidsdk/emulator/lib64/libunwind.so.8 external/androidsdk/emulator/lib64/qt/lib/libQt5CoreAndroidEmu.so.5 external/androidsdk/emulator/lib64/qt/lib/libQt5DBusAndroidEmu.so.5 external/androidsdk/emulator/lib64/qt/lib/libQt5GuiAndroidEmu.so.5 external/androidsdk/emulator/lib64/qt/lib/libQt5NetworkAndroidEmu.so.5 external/androidsdk/emulator/lib64/qt/lib/libQt5PrintSupportAndroidEmu.so.5 external/androidsdk/emulator/lib64/qt/lib/libQt5SvgAndroidEmu.so.5 external/androidsdk/emulator/lib64/qt/lib/libQt5WidgetsAndroidEmu.so.5 external/androidsdk/emulator/lib64/qt/lib/libQt5XcbQpaAndroidEmu.so.5 external/androidsdk/emulator/lib64/qt/lib/libfreetype.so.6 external/androidsdk/emulator/lib64/qt/lib/libsoftokn3.so external/androidsdk/emulator/lib64/qt/lib/libsqlite3.so external/androidsdk/emulator/lib64/qt/lib/libxkbcommon.so external/androidsdk/emulator/lib64/qt/lib/libxkbcommon.so.0 external/androidsdk/emulator/lib64/qt/lib/libxkbcommon.so.0.0.0 external/androidsdk/emulator/lib64/qt/plugins/iconengines/libqsvgicon.so external/androidsdk/emulator/lib64/qt/plugins/imageformats/libqgif.so external/androidsdk/emulator/lib64/qt/plugins/imageformats/libqicns.so external/androidsdk/emulator/lib64/qt/plugins/imageformats/libqico.so external/androidsdk/emulator/lib64/qt/plugins/imageformats/libqjpeg.so external/androidsdk/emulator/lib64/qt/plugins/imageformats/libqsvg.so external/androidsdk/emulator/lib64/qt/plugins/imageformats/libqtga.so external/androidsdk/emulator/lib64/qt/plugins/imageformats/libqtiff.so external/androidsdk/emulator/lib64/qt/plugins/imageformats/libqwbmp.so external/androidsdk/emulator/lib64/qt/plugins/imageformats/libqwebp.so external/androidsdk/emulator/lib64/qt/plugins/platforminputcontexts/libcomposeplatforminputcontextplugin.so external/androidsdk/emulator/lib64/qt/plugins/platforms/libqxcb.so external/androidsdk/emulator/lib64/vulkan/glslangValidator external/androidsdk/emulator/lib64/vulkan/libvk_swiftshader.so external/androidsdk/emulator/lib64/vulkan/libvulkan.so external/androidsdk/emulator/lib64/vulkan/libvulkan.so.1 external/androidsdk/emulator/lib64/vulkan/shaders/EacR11Snorm_2DArray.spv external/androidsdk/emulator/lib64/vulkan/shaders/EacR11Snorm_3D.spv external/androidsdk/emulator/lib64/vulkan/shaders/EacR11Unorm_2DArray.spv external/androidsdk/emulator/lib64/vulkan/shaders/EacR11Unorm_3D.spv external/androidsdk/emulator/lib64/vulkan/shaders/EacRG11Snorm_2DArray.spv external/androidsdk/emulator/lib64/vulkan/shaders/EacRG11Snorm_3D.spv external/androidsdk/emulator/lib64/vulkan/shaders/EacRG11Unorm_2DArray.spv external/androidsdk/emulator/lib64/vulkan/shaders/EacRG11Unorm_3D.spv external/androidsdk/emulator/lib64/vulkan/shaders/Etc2RGB8_2DArray.spv external/androidsdk/emulator/lib64/vulkan/shaders/Etc2RGB8_3D.spv external/androidsdk/emulator/lib64/vulkan/shaders/Etc2RGBA8_2DArray.spv external/androidsdk/emulator/lib64/vulkan/shaders/Etc2RGBA8_3D.spv external/androidsdk/emulator/lib64/vulkan/vk_swiftshader_icd.json external/androidsdk/emulator/qemu/linux-x86_64/qemu-system-i386' --flag_configured_android_tools '--adb=external/androidsdk/platform-tools/adb' '--emulator_x86=external/androidsdk/emulator/emulator' '--emulator_arm=external/androidsdk/emulator/emulator' '--adb_static=external/bazel_tools/tools/android/fail.sh' '--mksdcard=external/androidsdk/emulator/mksdcard' '--empty_snapshot_fs=bazel-out/host/bin/external/bazel_tools/tools/android/emulator/snapshots.img' '--bios_files=external/androidsdk/emulator/lib/pc-bios/bios-256k.bin,external/androidsdk/emulator/lib/pc-bios/bios.bin,external/androidsdk/emulator/lib/pc-bios/efi-e1000.rom,external/androidsdk/emulator/lib/pc-bios/efi-e1000e.rom,external/androidsdk/emulator/lib/pc-bios/efi-virtio.rom,external/androidsdk/emulator/lib/pc-bios/kvmvapic.bin,external/androidsdk/emulator/lib/pc-bios/linuxboot.bin,external/androidsdk/emulator/lib/pc-bios/linuxboot_dma.bin,external/androidsdk/emulator/lib/pc-bios/multiboot.bin,external/androidsdk/emulator/lib/pc-bios/vgabios-cirrus.bin,external/androidsdk/emulator/lib/pc-bios/vgabios-stdvga.bin,external/androidsdk/emulator/lib/pc-bios/vgabios-virtio.bin' --nocopy_system_images --single_image_file '--android_sdk_path=external/androidsdk' '--platform_apks=' '--default_properties_file=bazel-out/host/bin/external/android_test_support/tools/android/emulated_devices/generic_phone/_android_23_x86_qemu2_props.properties')
  | Execution platform: @bazel_tools//platforms:host_platform
  |  
  | Use --sandbox_debug to see verbose messages from the sandbox: unified_launcher_head failed: error executing command
  | (cd /var/lib/buildkite-agent/.cache/bazel/_bazel_buildkite-agent/8ab3d639e2adad62d28400e780405787/sandbox/linux-sandbox/324/execroot/__main__ && \
  | exec env - \
  | bazel-out/host/bin/external/android_test_support/tools/android/emulator/unified_launcher_head '--action=boot' '--density=240' '--memory=2048' '--cache=32' '--vm_size=256' '--generate_output_dir=bazel-out/host/bin/external/android_test_support/tools/android/emulated_devices/generic_phone/android_23_x86_qemu2_images' '--skin=480x800' '--source_properties_file=external/androidsdk/system-images/android-23/default/x86/source.properties' '--system_images=external/androidsdk/system-images/android-23/default/x86/NOTICE.txt external/androidsdk/system-images/android-23/default/x86/advancedFeatures.ini external/androidsdk/system-images/android-23/default/x86/build.prop external/androidsdk/system-images/android-23/default/x86/kernel-qemu external/androidsdk/system-images/android-23/default/x86/kernel-ranchu external/androidsdk/system-images/android-23/default/x86/package.xml external/androidsdk/system-images/android-23/default/x86/ramdisk.img external/androidsdk/system-images/android-23/default/x86/system.img external/androidsdk/system-images/android-23/default/x86/userdata.img external/androidsdk/emulator/emulator external/androidsdk/emulator/lib/advancedFeatures.ini external/androidsdk/emulator/lib/advancedFeaturesCanary.ini external/androidsdk/emulator/lib/ca-bundle.pem external/androidsdk/emulator/lib/emu-original-feature-flags.protobuf external/androidsdk/emulator/lib/emulator_controller.proto external/androidsdk/emulator/lib/hardware-properties.ini external/androidsdk/emulator/lib/pc-bios/bios-256k.bin external/androidsdk/emulator/lib/pc-bios/bios.bin external/androidsdk/emulator/lib/pc-bios/efi-e1000.rom external/androidsdk/emulator/lib/pc-bios/efi-e1000e.rom external/androidsdk/emulator/lib/pc-bios/efi-virtio.rom external/androidsdk/emulator/lib/pc-bios/keymaps/Makefile external/androidsdk/emulator/lib/pc-bios/keymaps/ar external/androidsdk/emulator/lib/pc-bios/keymaps/bepo external/androidsdk/emulator/lib/pc-bios/keymaps/common external/androidsdk/emulator/lib/pc-bios/keymaps/cz external/androidsdk/emulator/lib/pc-bios/keymaps/da external/androidsdk/emulator/lib/pc-bios/keymaps/de external/androidsdk/emulator/lib/pc-bios/keymaps/de-ch external/androidsdk/emulator/lib/pc-bios/keymaps/en-gb external/androidsdk/emulator/lib/pc-bios/keymaps/en-us external/androidsdk/emulator/lib/pc-bios/keymaps/es external/androidsdk/emulator/lib/pc-bios/keymaps/et external/androidsdk/emulator/lib/pc-bios/keymaps/fi external/androidsdk/emulator/lib/pc-bios/keymaps/fo external/androidsdk/emulator/lib/pc-bios/keymaps/fr external/androidsdk/emulator/lib/pc-bios/keymaps/fr-be external/androidsdk/emulator/lib/pc-bios/keymaps/fr-ca external/androidsdk/emulator/lib/pc-bios/keymaps/fr-ch external/androidsdk/emulator/lib/pc-bios/keymaps/hr external/androidsdk/emulator/lib/pc-bios/keymaps/hu external/androidsdk/emulator/lib/pc-bios/keymaps/is external/androidsdk/emulator/lib/pc-bios/keymaps/it external/androidsdk/emulator/lib/pc-bios/keymaps/ja external/androidsdk/emulator/lib/pc-bios/keymaps/lt external/androidsdk/emulator/lib/pc-bios/keymaps/lv external/androidsdk/emulator/lib/pc-bios/keymaps/mk external/androidsdk/emulator/lib/pc-bios/keymaps/modifiers external/androidsdk/emulator/lib/pc-bios/keymaps/nl external/androidsdk/emulator/lib/pc-bios/keymaps/nl-be external/androidsdk/emulator/lib/pc-bios/keymaps/no external/androidsdk/emulator/lib/pc-bios/keymaps/pl external/androidsdk/emulator/lib/pc-bios/keymaps/pt external/androidsdk/emulator/lib/pc-bios/keymaps/pt-br external/androidsdk/emulator/lib/pc-bios/keymaps/ru external/androidsdk/emulator/lib/pc-bios/keymaps/sl external/androidsdk/emulator/lib/pc-bios/keymaps/sv external/androidsdk/emulator/lib/pc-bios/keymaps/th external/androidsdk/emulator/lib/pc-bios/keymaps/tr external/androidsdk/emulator/lib/pc-bios/kvmvapic.bin external/androidsdk/emulator/lib/pc-bios/linuxboot.bin external/androidsdk/emulator/lib/pc-bios/linuxboot_dma.bin external/androidsdk/emulator/lib/pc-bios/multiboot.bin external/androidsdk/emulator/lib/pc-bios/vgabios-cirrus.bin external/androidsdk/emulator/lib/pc-bios/vgabios-stdvga.bin external/androidsdk/emulator/lib/pc-bios/vgabios-virtio.bin external/androidsdk/emulator/lib64/gles_mesa/libGL.so external/androidsdk/emulator/lib64/gles_mesa/libGL.so.1 external/androidsdk/emulator/lib64/gles_swiftshader/libEGL.so external/androidsdk/emulator/lib64/gles_swiftshader/libGLES_CM.so external/androidsdk/emulator/lib64/gles_swiftshader/libGLESv2.so external/androidsdk/emulator/lib64/libEGL_translator.so external/androidsdk/emulator/lib64/libGLES12Translator.so external/androidsdk/emulator/lib64/libGLES_CM_translator.so external/androidsdk/emulator/lib64/libGLES_V2_translator.so external/androidsdk/emulator/lib64/libOpenglRender.so external/androidsdk/emulator/lib64/libc++.so external/androidsdk/emulator/lib64/libc++.so.1 external/androidsdk/emulator/lib64/libemugl_common.so external/androidsdk/emulator/lib64/libtcmalloc_minimal.so.4 external/androidsdk/emulator/lib64/libunwind-x86_64.so.8 external/androidsdk/emulator/lib64/libunwind.so.8 external/androidsdk/emulator/lib64/qt/lib/libQt5CoreAndroidEmu.so.5 external/androidsdk/emulator/lib64/qt/lib/libQt5DBusAndroidEmu.so.5 external/androidsdk/emulator/lib64/qt/lib/libQt5GuiAndroidEmu.so.5 external/androidsdk/emulator/lib64/qt/lib/libQt5NetworkAndroidEmu.so.5 external/androidsdk/emulator/lib64/qt/lib/libQt5PrintSupportAndroidEmu.so.5 external/androidsdk/emulator/lib64/qt/lib/libQt5SvgAndroidEmu.so.5 external/androidsdk/emulator/lib64/qt/lib/libQt5WidgetsAndroidEmu.so.5 external/androidsdk/emulator/lib64/qt/lib/libQt5XcbQpaAndroidEmu.so.5 external/androidsdk/emulator/lib64/qt/lib/libfreetype.so.6 external/androidsdk/emulator/lib64/qt/lib/libsoftokn3.so external/androidsdk/emulator/lib64/qt/lib/libsqlite3.so external/androidsdk/emulator/lib64/qt/lib/libxkbcommon.so external/androidsdk/emulator/lib64/qt/lib/libxkbcommon.so.0 external/androidsdk/emulator/lib64/qt/lib/libxkbcommon.so.0.0.0 external/androidsdk/emulator/lib64/qt/plugins/iconengines/libqsvgicon.so external/androidsdk/emulator/lib64/qt/plugins/imageformats/libqgif.so external/androidsdk/emulator/lib64/qt/plugins/imageformats/libqicns.so external/androidsdk/emulator/lib64/qt/plugins/imageformats/libqico.so external/androidsdk/emulator/lib64/qt/plugins/imageformats/libqjpeg.so external/androidsdk/emulator/lib64/qt/plugins/imageformats/libqsvg.so external/androidsdk/emulator/lib64/qt/plugins/imageformats/libqtga.so external/androidsdk/emulator/lib64/qt/plugins/imageformats/libqtiff.so external/androidsdk/emulator/lib64/qt/plugins/imageformats/libqwbmp.so external/androidsdk/emulator/lib64/qt/plugins/imageformats/libqwebp.so external/androidsdk/emulator/lib64/qt/plugins/platforminputcontexts/libcomposeplatforminputcontextplugin.so external/androidsdk/emulator/lib64/qt/plugins/platforms/libqxcb.so external/androidsdk/emulator/lib64/vulkan/glslangValidator external/androidsdk/emulator/lib64/vulkan/libvk_swiftshader.so external/androidsdk/emulator/lib64/vulkan/libvulkan.so external/androidsdk/emulator/lib64/vulkan/libvulkan.so.1 external/androidsdk/emulator/lib64/vulkan/shaders/EacR11Snorm_2DArray.spv external/androidsdk/emulator/lib64/vulkan/shaders/EacR11Snorm_3D.spv external/androidsdk/emulator/lib64/vulkan/shaders/EacR11Unorm_2DArray.spv external/androidsdk/emulator/lib64/vulkan/shaders/EacR11Unorm_3D.spv external/androidsdk/emulator/lib64/vulkan/shaders/EacRG11Snorm_2DArray.spv external/androidsdk/emulator/lib64/vulkan/shaders/EacRG11Snorm_3D.spv external/androidsdk/emulator/lib64/vulkan/shaders/EacRG11Unorm_2DArray.spv external/androidsdk/emulator/lib64/vulkan/shaders/EacRG11Unorm_3D.spv external/androidsdk/emulator/lib64/vulkan/shaders/Etc2RGB8_2DArray.spv external/androidsdk/emulator/lib64/vulkan/shaders/Etc2RGB8_3D.spv external/androidsdk/emulator/lib64/vulkan/shaders/Etc2RGBA8_2DArray.spv external/androidsdk/emulator/lib64/vulkan/shaders/Etc2RGBA8_3D.spv external/androidsdk/emulator/lib64/vulkan/vk_swiftshader_icd.json external/androidsdk/emulator/qemu/linux-x86_64/qemu-system-i386' --flag_configured_android_tools '--adb=external/androidsdk/platform-tools/adb' '--emulator_x86=external/androidsdk/emulator/emulator' '--emulator_arm=external/androidsdk/emulator/emulator' '--adb_static=external/bazel_tools/tools/android/fail.sh' '--mksdcard=external/androidsdk/emulator/mksdcard' '--empty_snapshot_fs=bazel-out/host/bin/external/bazel_tools/tools/android/emulator/snapshots.img' '--bios_files=external/androidsdk/emulator/lib/pc-bios/bios-256k.bin,external/androidsdk/emulator/lib/pc-bios/bios.bin,external/androidsdk/emulator/lib/pc-bios/efi-e1000.rom,external/androidsdk/emulator/lib/pc-bios/efi-e1000e.rom,external/androidsdk/emulator/lib/pc-bios/efi-virtio.rom,external/androidsdk/emulator/lib/pc-bios/kvmvapic.bin,external/androidsdk/emulator/lib/pc-bios/linuxboot.bin,external/androidsdk/emulator/lib/pc-bios/linuxboot_dma.bin,external/androidsdk/emulator/lib/pc-bios/multiboot.bin,external/androidsdk/emulator/lib/pc-bios/vgabios-cirrus.bin,external/androidsdk/emulator/lib/pc-bios/vgabios-stdvga.bin,external/androidsdk/emulator/lib/pc-bios/vgabios-virtio.bin' --nocopy_system_images --single_image_file '--android_sdk_path=external/androidsdk' '--platform_apks=' '--default_properties_file=bazel-out/host/bin/external/android_test_support/tools/android/emulated_devices/generic_phone/_android_23_x86_qemu2_props.properties')
  | Execution platform: @bazel_tools//platforms:host_platform
  |  
  | Use --sandbox_debug to see verbose messages from the sandbox
  | File "/var/lib/buildkite-agent/.cache/bazel/_bazel_buildkite-agent/8ab3d639e2adad62d28400e780405787/sandbox/linux-sandbox/324/execroot/__main__/bazel-out/host/bin/external/android_test_support/tools/android/emulator/unified_launcher_head.runfiles/android_test_support/tools/android/emulator/unified_launcher.py", line 468
  | print ''
  | ^
  | SyntaxError: Missing parentheses in call to 'print'. Did you mean print('')?
  | ----------------
  | Note: The failure of target @android_test_support//tools/android/emulator:unified_launcher_head (with exit code 1) may have been caused by the fact that it is running under Python 3 instead of Python 2. Examine the error to determine if that appears to be the problem. Since this target is built in the host configuration, the only way to change its version is to set --host_force_python=PY2, which affects the entire build.
  |  
  | If this error started occurring in Bazel 0.27 and later, it may be because the Python toolchain now enforces that targets analyzed as PY2 and PY3 run under a Python 2 and Python 3 interpreter, respectively. See https://github.com/bazelbuild/bazel/issues/7899 for more information.
  | ----------------
  | Target //src/test:greeter_test failed to build

[laszlocsomor]

/cc @brandjon @jin

[jin]

This test has been fixed on HEAD, but a bad bazei ci config means the last green commit wasn't uploaded and the downstream pipeline picked up an older (red) commit. #162 should fix it.