Plugin won't install on Apache Netbeans 12.0 due to "Common Test Runnner UI" dependency

[darwinte]

Gives a dialog box and can't press the Next button in the installation window:

Some plugins require plugin Common Test Runner UI to be installed.
The plugin Common Test Runner UI is requested in implementation version 201609300101. The following plugin is affected:       Rust
Some plugins require plugin Common Test Runner API to be installed.
The plugin Common Test Runner API is requested in implementation version 201609300101. The following plugin is affected:       Rust