Sample broken thing:
https://buildbot.lix.systems/#/builders/40/builds/3400/steps/1/logs/stdio
I have a suspicion it's that the path vanished due to GC or something,
and I want to catch the next occurrence.
The error:
error: build of '/nix/store/f02iygmil30yfy92xf8cwp224lcr2nay-nixos-test-driver-nix-copy-closure.drv' on 'ssh-ng://nix@epyc.infra.newtype.fr' failed: error: some dependencies of '/nix/store/f02iygmil30yfy92xf8cwp224lcr2nay-nixos-test-driver-nix-copy-closure.drv' are missing
This is because nrFailed is not zero, which we don't have any god damned
idea why that is because there is NO LOG for those. So we don't even
know what goal type failed to begin with.
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WARNING: this updates nixpkgs by two months!! You will potentially
experience other breakage.