This repository shows webpack optimization bailouts with rambda@7.2.1.
To see the bailouts, open stats.json and search for rambda.mjs in modules section.
In found objects there is a optionmizationBailouts field, which indicates what problemns webpack had when building the project
There you will see the following:
Statement (VariableDeclaration) with side effects in source code at 28:0-31
It basically indicates that const adjust = curry(adjustFn); could not be optimized due to the fact that this code is a side-effect.
You can generate your own stats.json with
npx webpack --profile --json=stats.json but it will not be different from mine.