1GiB Android Go device (gobo-userdebug 8.1.0 OMB1.180323.001)
Chrome ToT (87c264cce66cfc8a9305bde3a0211d0b13f2647f)

Chrome fails to start for the first time with:

FATAL EXCEPTION: AsyncTask #1
Process: com.google.android.apps.chrome, PID: 5766
java.lang.RuntimeException: An error occurred while executing doInBackground()
 at android.os.AsyncTask$3.done(AsyncTask.java:353)
 at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:383)
 at java.util.concurrent.FutureTask.setException(FutureTask.java:252)
 at java.util.concurrent.FutureTask.run(FutureTask.java:271)
 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1162)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636)
 at java.lang.Thread.run(Thread.java:764)
Caused by: java.lang.RuntimeException
 at org.chromium.base.ResourceExtractor$ExtractTask.doInBackground$51DKOQJ1EPGIUR31DPJIULJFD5I3MAACD9GNCO9FDHGMSPPFAPNMIP1R0(ResourceExtractor.java:10)
 at org.chromium.base.ResourceExtractor$ExtractTask.doInBackground(ResourceExtractor.java:92)
 at android.os.AsyncTask$2.call(AsyncTask.java:333)
 at java.util.concurrent.FutureTask.run(FutureTask.java:266)
 ... 3 more

The issue is that ResourceExtractor.ExtractTask.doInBackgroundImpl() fails to create 

if (!outputDir.exists() && !outputDir.mkdirs()) {
    throw new RuntimeException();
}

where outputDir is /data/user/0/com.google.android.apps.chrome/app_chrome/paks

Related logcat entry:

FileUtils: Failed to chmod(/data/user/0/com.google.android.apps.chrome/app_chrome): android.system.ErrnoException: chmod failed: EACCES (Permission denied)