It looks like you are trying to install Julia 1.6 or 1.7 on the "macos-latest" runners. "macos-latest" now resolves to "macos-14", which run on Apple Silicon (aarch64) macOS machines. Unfortunately, Julia 1.6 and 1.7 do not have native binaries available for Apple Silicon macOS. Therefore, it is not possible to install Julia with the current constraints. For instructions on how to fix this error, please see the following Discourse post: https://discourse.julialang.org/t/how-to-fix-github-actions-ci-failures-with-julia-1-6-or-1-7-on-macos-latest-and-macos-14/117019

Encountered error: Could not find aarch64/1.6.7 binaries

Process completed with exit code 1.

Process completed with exit code 1.

Process completed with exit code 1.

The hosted runner: GitHub Actions 19 lost communication with the server. Anything in your workflow that terminates the runner process, starves it for CPU/Memory, or blocks its network access can cause this error.

Process completed with exit code 1.

Process completed with exit code 1.

ubuntu-latest pipelines will use ubuntu-24.04 soon. For more details, see https://github.com/actions/runner-images/issues/10636

ubuntu-latest pipelines will use ubuntu-24.04 soon. For more details, see https://github.com/actions/runner-images/issues/10636

[setup-julia] If you are testing 1.6 as a Long Term Support (lts) version, consider using the new "lts" version specifier instead of "1.6" explicitly, which will automatically resolve the current lts.

[setup-julia] If you are testing 1.6 as a Long Term Support (lts) version, consider using the new "lts" version specifier instead of "1.6" explicitly, which will automatically resolve the current lts.