security_SandboxedServices fails on lakitu_next-paladin since build 4223:

security_SandboxedServices             FAIL: One or more processes failed sandboxing
security_SandboxedServices             12/16 08:12:13.456 ERROR|security_Sandboxed:0322| New services are not allowed to run as root, but these are: ['install_custom_']
security_SandboxedServices             12/16 08:12:13.460 ERROR|security_Sandboxed:0326| Failed sandboxing: ['install_custom_']

'install_custom_' is referring to /usr/share/google/install_custom_docker:

 1876   171 install_custom_                  root             root             root             root             4026531839 4026531840 4026531957 4026531836 4026531837 4026531838 /bin/bash /usr/share/google/install_custom_docker