`micromamba list` runs indefinitely on Micromamba v2.0.0

[mrvisscher]

Our Github runners timed out last night running micromamba list. Fix for us right now is pinning the last Micromamba release before v2.0.0 but something is definitely up. Runner logs

[pavelzw]

i think this is an issue for the mamba repository, right @jjerphan @JohanMabille?
could you transfer it?

[mikemhenry]

Related to mamba-org/micromamba-releases#58 probably, see if explicitly pulling in 2.0 fixes it

      - name: Setup micromamba
        uses: mamba-org/setup-micromamba@v1.9.0
        with:
          micromamba-version: '2.0.0-0'

[bhperry]

pinning 2.0.0-0 did not fix for me. It seems like it's always using the same micromamba version no matter what I pin.

I see this in the logs Will use pre-installed micromamba at /home/runner/micromamba-bin/micromamba

How do I get it to not use the pre-installed version?

[bhperry]

Looks like there is a pre-installed version on the runner, and setup-micromamba will completely ignore your pinned version if that exists.

Also had to got through and delete all of the github actions caches for micromamba because otherwise even with the correct binary, it would still fail to list when pulling the previous cache.

[bhperry]

This is what fixed it for me

      - name: Set up micromamba
        uses: mamba-org/setup-micromamba@v1.9.0
        with:
          # https://github.com/mamba-org/setup-micromamba/issues/225
          micromamba-version: 1.5.10-0
          micromamba-binary-path: /home/runner/micromamba-bin-versioned/micromamba

And then delete every previous micromamba cache from github actions cache