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Hex.Shell.warn/1 wrote to stdout via Mix.shell().info/1, so warnings like the expired-authentication notice or the stale mix.lock version warning polluted machine-readable stdout output such as `mix hex.outdated --json`. Route warn/1 through Mix.shell().error/1, which prints to stderr, keeping the yellow warning color. Warning-colored lines that are part of a command's regular stdout output (the retirement reason in the `mix deps.get` dependency listing and the retirement notice in `mix hex.info`) stay on stdout and are now printed as yellow-formatted info lines instead.
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Hex.Shell.warn/1wrote to stdout viaMix.shell().info/1, so warnings like the expired-authentication notice or the stale mix.lock version warning polluted machine-readable stdout output such asmix hex.outdated --json. Routewarn/1throughMix.shell().error/1, which prints to stderr, keeping the yellow warning color.Warning-colored lines that are part of a command's regular stdout output (the retirement reason in the
mix deps.getdependency listing and the retirement notice inmix hex.info) stay on stdout and are now printed as yellow-formatted info lines instead.