Action started failing ~36 hours ago

[samuela]

I have not made any changes to my GitHub Actions config, but recently I've started seeing my CI fail on the cachix-action step:

Cachix: installing
  /usr/bin/bash -c nix-env --quiet -j8 -iA cachix -f https://cachix.org/api/v1/install
Cachix: checking version
  Error: Action failed with error: Error: Unable to locate executable file: cachix. Please verify either the file path exists or the file can be found within a directory specified by the PATH environment variable. Also check the file mode to verify the file is executable.

For example, check out this run.

Any idea what's causing these failures? How can I get cachix-action working again?

[sandydoo]

@samuela, there was an issue with cachix/install-nix-action and a new release of Nix. Please upgrade to cachix/install-nix-action@v20.

[samuela]

thanks, I'll give that a shot!

[samuela]

that seems to have fixed it: https://github.com/samuela/nixpkgs-upkeep/actions/runs/4310823350

thanks @sandydoo !

[dohn-joh]

Hi I am experiencing this error as well while using github actions. My last action from 4 days ago was successful, but it started failing today. How did you upgrade cachix/install-nix-action @samuela ? I am using a clone of this repository https://github.com/moergo-sc/glove80-zmk-config

Please let me know if I should open a separate issue.

[samuela]

@pujvz You'll need to update your GH Actions config. See eg the cachix/cachix-action@v12 in your screenshot above.

[dohn-joh]

@samuela I tried updating my build.yml yesterday and the action errored out. Sorry if I am missing something extremely obvious. I am not a SWE and I'm new to all this.

build.yml

Action error after updating build.yml

Edit: corrected the screenshot

[samuela]

hmm this sort of thing really belongs in a separate issue. a few thoughts in the meantime:

• please post links to the relevant logs/commits/etc instead of screenshots. this helps to debug.
• it looks like you downgraded from v20 to v12. you want to be upgrading versions if at all possible

[dohn-joh]

Apologies. I attached a screenshot of the wrong commit from after I reverted the change. Another user was able to assist me with this issue. I changed line 17 from

- uses: cachix/install-nix-action@v18
to
- uses: cachix/install-nix-action@v20

and now the action completes successfully.