I'm seeing a weird issue on Linux (Ubuntu 20.04, running as my own user flaki) where subo build . would use the docker build method to build the Rust runnables, and while the runnables.wasm.zip bundle comes out perfectly fine (flaki:flaki user/group), the build artifacts end up in folders that are root:root-owned and cannot be deleted without using sudo.

As a result, subo clean fails also without a sudo: