UserAgent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.140 Safari/537.36

Steps to reproduce the problem:
1. Download chromium tarball
2. Build it
3. See it failing

What is the expected behavior?
Build it 

What went wrong?
https://p.teknik.io/Raw/hoX73

Did this work before? Yes 66.0.3347.0

Chrome version: 66.0.3348.0  Channel: canary
OS Version: 66.0.3348.0
Flash Version: no

linux, clang6 from google tarball, glibc 2.26