The native_toolchain_build_dist_test_clang task is surpassing 30GB of memory usage, causing failures on the current ubuntu2404-arm64-m8g-2xlarge distro. The native toolchain build with clang-19 using profiled optimization requires significant memory resources that exceed the 2xlarge instance's capacity. To resolve this, we're changing the distro for the ubuntu2404-arm64-native-toolchain build variant to ubuntu2404-arm64-m8g-4xlarge , which provides 64GB of memory. This change is made in etc/evergreen_yml_components/variants/ubuntu/test_dev.yml at line 76, updating the run_on field to use the larger instance size, ensuring the task has adequate memory resources to complete successfully.