The provisioning error of Kubernetes agents requested with {{node { ... }}} or {{agent { label ... } }}} blocks (such as when a resource quota is blocking por creation - are not displayed in the console out. Which makes it not obvious for users to understand why a job may be waiting for an agent...

This refers to https://github.com/jenkinsci/kubernetes-plugin/blob/4234.vdf3e78112369/src/main/java/org/csanchez/jenkins/plugins/kubernetes/KubernetesSlave.java#L126-L145.

The functionality only works for kubernetes { ... }}} block or {{podTemplate {...}.