My "repo upload --cbr ." command, executed in src/third_party/autotest/files outside of my chroot, is taking a really long time and not displaying any output. It prompted me for my password for sudo when I first ran it, which seemed weird (but now I see it probably wanted that to enter the chroot).

"top" shows a python2 process taking up 100% CPU, and ps shows a bunch of processes like this:

root     11380 17.0  0.0 120260 45012 pts/33   S+   19:36   0:00 python2 /derat/chromeos/chromite/bin/cros_sdk -- equery -qC uses chromeos-base/autotest-tests-wimax chromeos-base/autotest-server-tests-shill chromeos-base/autotest-tests chromeos-base/autotest-tests-security chromeos-base/autotest-tests-cros-disks chromeos-base/autotest-tests-cloud-services chromeos-base/autotest-tests-cellular chromeos-base/autotest-tests-arc-public chromeos-base/autotest-server-tests-telemetry chromeos-base/autotest-tests-p2p chromeos-base/autotest-tests-touchpad chromeos-base/autotest-deps-cellular chromeos-base/autotest-deps-graphics chromeos-base/autotest-tests-power chromeos-base/autotest-server chromeos-base/autotest-tests-ownershipapi chromeos-base/autotest-deps-glmark2 chromeos-base/autotest-tests-wifi-bootstrapping chromeos-base/autotest-private-board chromeos-base/autotest-tests-shill chromeos-base/autotest-chrome chromeos-base/autotest-server-deps chromeos-base/autotest-web-frontend chromeos-base/autotest-deps-webgl-clear chromeos-base/autotest-tests-ltp chromeos-base/autotest-deps-piglit chromeos-base/autotest-deps-webgl-mpd chromeos-base/autotest-private-all chromeos-base/autotest-deps chromeos-base/autotest-deps-webgl-perf chromeos-base/autotest-all chromeos-base/autotest-tests-audio chromeos-base/autotest-deps-ltp chromeos-base/autotest-server-tests-bluetooth chromeos-base/autotest-tests-cryptohome chromeos-base/autotest-deps-p2p chromeos-base/autotest-deps-glbench chromeos-base/autotest-fakemodem-conf chromeos-base/autotest-tests-debugd chromeos-base/autotest-tests-graphics chromeos-base/autotest-deps-touchpad chromeos-base/autotest-server-tests chromeos-base/autotest-tests-peerd chromeos-base/autotest-client chromeos-base/autotest-deps-uiautomator chromeos-base/autotest-tests-tpm

It eventually completed minutes later and printed a presubmit error about an empty "BUG=" line, which was anticlimactic.

Running it a second and third time is taking just long. Any guesses about what it's doing and how I can make it stop?