Both systems (a Jenkins build node and my laptop) hang at that step, seemingly indefinitely.
Running the same (e.g. yarn eslint --no-eslintrc -c .eslintrc.js --ext .js --ext .jsx .) is fine directly on my laptop.
Anyone got any ideas why that may be? The only thing I can think of is the overly cute unicode symbols that yarn is spitting out may be confusing docker.