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-rw-r--r--tools/run_tests/artifacts/artifact_targets.py2
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/run_tests/artifacts/artifact_targets.py b/tools/run_tests/artifacts/artifact_targets.py
index d18ea2aca1..aa1d0c3bf2 100644
--- a/tools/run_tests/artifacts/artifact_targets.py
+++ b/tools/run_tests/artifacts/artifact_targets.py
@@ -124,6 +124,8 @@ class PythonArtifact:
# https://github.com/resin-io-projects/armv7hf-debian-qemu/issues/9
# A QEMU bug causes submodule update to hang, so we copy directly
environ['RELATIVE_COPY_PATH'] = '.'
+ # Parallel builds are counterproductive in emulated environment
+ environ['GRPC_PYTHON_BUILD_EXT_COMPILER_JOBS'] = '1'
extra_args = ' --entrypoint=/usr/bin/qemu-arm-static '
return create_docker_jobspec(
self.name,