Head over to the desktop and open the downloaded folder beacon-fuzz .
Continue to the subfolder eth2fuzz and open the Makefile file with a text editor.
Replace all DOCKER_BUILDKIT=1 in the Makefile with docker build \ and save the changes.
There are five "DOCKER_BUILDKIT=1" in total.
Alternatively, copy this file, which has everything replaced.
Open a terminal window and go to the eth2fuzz directory with cd desktop/beacon-fuzz/eth2fuzz
Build all clients and start fuzzing by running make fuzz-all
That's it, the process will take multiple hours!
Search the beacon-fuzz folder for files called "crash-...", which is the bug file, and compress it
to a zip file.
Web tool to convert files into zip.
Post the zip file on the beacon-fuzz github repository.