How to reproduce:
1. Open the attached 'project-1250685.zip' project
2. Make sure you have Linux build support module
3. In the Build Settings observe the Target Platform (should be Windows)
4. In the Project window select 'LinuxBuildConfig'
5. In the Inspector window select 'Build'
6. Wait for the process to finish and observe the Console window

Expected result: Build finishes successfully
Actual result: Build fails (since the wrong 'Target Platform' was selected in the Build Settings)

Reproducible with: 2019.3.15f1, 2020.1.0b10, 2020.2.0a13
Could not test with: 2018.4.23f1 (Platforms package not available)

Platforms package version: 0.4.0-preview.1, 0.4.0-preview.5 (could not test with older versions due to compatibility issues)
Entities package version: 0.11.0-preview.7 (could not test with older versions due to compatibility issues)

Notes:
1) The right platform is switched before the build fails, therefore building again will succeed
2) 0.4.0-preview.2 version does not seem to switch the target platform at all when a build fails