To https://chromium.googlesource.com/chromium/src.git
 ! [remote rejected]           ab4e8abc660c87f2aecf741ba6e3d5d8ca2af7d4 -> refs/for/refs/heads/master%m=Initial_upload,notify=NONE (error in Gerrit backend)
error: failed to push some refs to 'https://chromium.googlesource.com/chromium/src.git'

Error after CL description prompt -- saving description to /usr/local/google/home/dcheng/.git_cl_description_backup

Failed to create a change. Please examine output above for the reason of the failure.
Hint: run command below to diangose common Git/Gerrit credential problems:
  git cl creds-check

dcheng@truffula:~/src/chrome/src$  git cl creds-check
git is already configured to use your .gitcookies from /usr/local/google/home/dcheng/.gitcookies
Your .netrc and .gitcookies have credentials for these hosts:
                                   Host                    User Which file
======================================= ======================= ======
chrome-internal-review.googlesource.com git-dcheng.chromium.org .netrc
       chrome-internal.googlesource.com git-dcheng.chromium.org .netrc
       chromium-review.googlesource.com git-dcheng.chromium.org .netrc
              chromium.googlesource.com git-dcheng.chromium.org .netrc
         pdfium-review.googlesource.com git-dcheng.chromium.org .netrc
                pdfium.googlesource.com git-dcheng.chromium.org .netrc

No problems detected in your .gitcookies

And looking at PG, there is a review: https://chromium-review.googlesource.com/c/488170/