I'm using Elixir 1.8.1 and am now seeing this error under our Gitlab CI:
* creating /root/.mix/archives/hex-2.0.6
* creating /root/.mix/rebar
** (Mix) Could not install Rebar because Mix could not verify authenticity of metadata file at "https://repo.hex.pm/installs/rebar3-1.x.csv". This may happen because a proxy or some entity is interfering with the download or because you don't have a public key to verify the download.
You may try again later or check if a new public key has been released in our public keys page: https://repo.hex.pm/installs/public_keys.html
Exactly 2.5h ago this was running fine:
* creating /root/.mix/archives/hex-2.0.6
* creating /root/.mix/rebar
* creating /root/.mix/rebar3
There has been no changes on our side.
Is this a Gitlab problem, a new version of rebar3 that got released just now, or an issue in the hex repo?
UPDATE: seems like it's on hex's side:
- Issue: https://github.com/elixir-lang/elixir/issues/12615
- Linked forum thread: https://elixirforum.com/t/error-installing-rebar3/56160
