1. What happened
Unable to launch x86 builds on Linux.

2. How we can reproduce it using the example you attached
- Open unity 2018.1.0b12
- Open any scene
- Go to "File > Build and Run"
- Select "x86" as the build target
- Click "Build and Run"
Notice issue >> Unity creates the build but it does not run.

- Try to launch the build via the terminal using sudo
Notice issue >> Abort (Core Dump)

ERROR LOG ATTACHED