Affected Version: 0.17.0-SNAPSHOT
API (fluent-en_GB, infix-en_GB): alll
Platform (jvm, js): all
Extension (none, kotlin 1.3): none

Why does this issue template point out Kotlin 1.3 -- current is 1.5.x?
Likewise, the build output seems to depend on older Kotlin versions.

How to reproduce the problem

Clone the repo. Build with ./gradlew clean build.

Describe the bug

Lots of cmd line noise, and green builds take 10+ minutes. (fyi -- I'm on a modern Mac in my local build).
The warnings lower my confidence for the code, and the long build times make it harder to contribute.

The build noise is potentially addressable (suppressions and the like). The long time may be unavoidable. However, it is offputting for contributors like myself, and impedes the "red-green-refactor" development cycle.