macos-11 unsupported?

[miuirussia]

As described, macos-latest will be upgraded to Big Sur (macos-11) (actions/runner-images#4060). I upgraded my workflow to macos-11 (for testing) and then get error:

You can see full log here:

https://github.com/miuirussia/nix-flake-env/runs/3666559886?check_suite_focus=true

[domenkozar]

You need the latest Nix from master.

[miuirussia]

It doesn't pass the tests

[domenkozar]

Do you mean CI? It has a flaky test on macOS.

[miuirussia]

Yes, here: https://hydra.nixos.org/jobset/nix/master

I use automatic nix install script update: https://github.com/miuirussia/nix-unstable-installer, that updates, when evaluation of nix:master jobset is success

[miuirussia]

Maybe problem here:

install-nix-action/lib/install-nix.sh

Line 52 in 11e5400

sudo mdutil -i off /nix

?

[domenkozar]

Latest commit succeeds: NixOS/nix@362d8f9

[miuirussia]

But on hydra not succeed: https://hydra.nixos.org/jobset/nix/master because of this, the binaries were not released

as result, install script will fail when try to download for example:
https://releases.nixos.org/nix/nix-2.4pre20210922_bcd73eb/nix-2.4pre20210922_bcd73eb-x86_64-darwin.tar.xz

[miuirussia]

And, as I understand from log: https://github.com/miuirussia/nix-flake-env/runs/3666559886?check_suite_focus=true, installer script worked correctly without errors. Problem in install-nix.sh from this action, because spotlight indexing in unknown state (maybe disabled for github runners)

[domenkozar]

This was fixed in NixOS/nix#5281

I've changed the recommended installer in 791347c

[shonfeder]

We are hitting the same problem, despite using the latest installer recommended: https://github.com/informalsystems/apalache/runs/3908711785?check_suite_focus=true#step:4:927

As a temporary workarond, we've pinned the macos runner to macos-10.15.

Please let me know if I may be missing something, or if you'd like me to open a new issue. 🙏

[domenkozar]

Try upgrading to cachix/install-nix-action@v14.1

[shonfeder]

That's working! Thanks :) Sorry I missed that.