I am hitting similar issues over here Update nalgebra and the rest of dependencies to have the crates compile by mpizenberg · Pull Request #33 · rust-cv/cv · GitHub. I am wondering if there are network limits we are running into? I am getting failed dependency downloads. To mitigate this, I am trying to use rust-cache to cache some of the source so it doesn’t need to be redownloaded. If anyone knows of a proper fix, that would be awesome.

I am also running into this often requiring the entire workflow to be restarted

Version locking to nightly-2021-07-05 seems to have resolved this error for me as well. However, this doesn’t appear to be limited to GitHub Actions.

I’m running cargo +nightly fmt --all -- --check in a GitLab-CI custom runner on an EKS cluster with NAT gateway egress. Sometimes it works, sometimes it errors with Error during execution of cargo metadata: Updating git repository, then proceeds to reinstall a bunch of packages eventually bombing out with the same error cause [55].

Thanks for the tip.

Is anyone aware if there is a tracking issue for this problem if it is a bug in Cargo?