Error messages shown when using heroku run on ARM mac

[fschwahn]

What is the current behavior?

Use heroku run <command> on a Macbook with ARM processor (M1 / M2). After the command has run, an error message will be shown. I assume this only happens when Rosetta is not installed.

Example:

> heroku run bash -a app-name
Running bash on ⬢ app-name... up, run.123 (Standard-1X)
    Error: spawn Unknown system error -86
    Code: Unknown system error -86
~ $

NOTE: I can interact with bash normally, so this does not prevent using heroku run.

What is the expected behavior?

This should not produce any warnings / error messages.

• Heroku: heroku/8.4.2 darwin-arm64 node-v16.19.0
• macOS 13.5.1 (22G90)