I am getting the exact same issue, I tried lots of things but no luck. I am building a Godot game so I am using baricello's Godot 3.4 docker image. Worth mentioning that I used his image from 3.3.2 on another project and that did not fail when I used it some time ago, but I re-tried that project today (with image 3.3.2 too) and failed with the same mysterious error. Tried to use -v flag to output info but nothing useful outputs (mostly directories, no real error message)