Kotlin/Gradle 6.0.1 builds failing

Our Spring app that uses Kotlin/Gradle 6.0.1 started failing a few days ago, previous build that were successful are also failing.

Failing at gradle dependencies step with

#!/bin/bash -eo pipefail
gradle dependencies

Welcome to Gradle 6.0.1!

Here are the highlights of this release:
 - Substantial improvements in dependency management, including
   - Publishing Gradle Module Metadata in addition to pom.xml
   - Advanced control of transitive versions
   - Support for optional features and dependencies
   - Rules to tweak published metadata
 - Support for Java 13
 - Faster incremental Java and Groovy compilation
 - New Zinc compiler for Scala
 - VS2019 support
 - Support for Gradle Enterprise plugin 3.0

For more details see https://docs.gradle.org/6.0.1/release-notes.html

Starting a Gradle Daemon (subsequent builds will be faster)

FAILURE: Build failed with an exception.

* Where:
Build file '/home/circleci/repo/build.gradle' line: 22

* What went wrong:
A problem occurred evaluating root project 'repo'.
> java.lang.ExceptionInInitializerError (no error message)

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

Exited with code 1

Line 22 of the gradle config is:
apply plugin: 'kotlin'

Only seems to happen on CircleCI, local builds work fine.

Can you run with debug to get more output?