Pulled m-c today and rebuilt, subsequent local Robocop testing is failing. Bisected to bug 1155338 ... backout gets me testing again. Condensed logcat is: 0:00.92 LOG: MainThread INFO Device info: 0:01.56 LOG: MainThread INFO uptime: 96 days 17 hours 7 minutes 43 seconds 0:01.56 LOG: MainThread INFO memtotal: 1849124 kB 0:01.56 LOG: MainThread INFO process: 0:01.56 LOG: MainThread INFO USER PID PPID VSIZE RSS WCHAN PC NAME 0:01.56 LOG: MainThread INFO root 1 0 684 544 ffffffff 00000000 S /init 0:01.56 LOG: MainThread INFO root 2 0 0 0 ffffffff 00000000 S kthreadd 0:01.56 LOG: MainThread INFO root 3 2 0 0 ffffffff 00000000 S ksoftirqd/0 ... ... ... ... 0:01.58 LOG: MainThread INFO root 24709 430 5216 512 ffffffff 00000000 S daemonsu:10119 0:01.58 LOG: MainThread INFO root 25083 2 0 0 ffffffff 00000000 S flush-179:0 0:01.58 LOG: MainThread INFO root 27134 430 8936 3176 ffffffff 00000000 S daemonsu:0 0:01.58 LOG: MainThread INFO u0_a51 29024 9622 907068 42788 ffffffff 00000000 S com.android.vending 0:01.58 LOG: MainThread INFO root 29416 430 10824 3016 ffffffff 00000000 S daemonsu:10070 0:01.58 LOG: MainThread INFO u0_a43 32751 9622 906216 43692 ffffffff 00000000 S com.google.android.music:main 0:01.58 LOG: MainThread INFO systime: Wed May 6 23:36:09 EDT 2015 0:01.58 LOG: MainThread INFO disk: 0:01.58 LOG: MainThread INFO Filesystem Size Used Free Blksize 0:01.58 LOG: MainThread INFO /data 12.2G 6.0G 6.2G 4096 0:01.58 LOG: MainThread INFO /system 827.8M 727.0M 100.8M 4096 0:01.58 LOG: MainThread INFO /sdcard 12.2G 6.0G 6.2G 4096 0:01.58 LOG: MainThread INFO os: KTU84L 0:01.58 LOG: MainThread INFO id: 08562eeb 0:01.65 LOG: MainThread INFO Test root: /storage/sdcard0/tests 0:01.72 LOG: MainThread INFO Android sdk version '19'; will use this to filter manifests 0:03.89 SUITE_START: MainThread 1 0:04.11 LOG: MainThread INFO Checking for orphan ssltunnel processes... 0:04.18 LOG: MainThread INFO Checking for orphan xpcshell processes... 0:04.21 LOG: ProcessReader INFO master 9738 9735 0 23:36 pts/7 00:00:00 /bin/sh -c if [ '/home/master/mozilla-central-objff/dist/bin' = '' ]; then \ echo 'environment variable MOZ_HOST_BIN must be set to a directory containing host xpcshell'; \ elif [ ! -d /home/master/mozilla-central-objff/dist/bin ]; then \ echo 'MOZ_HOST_BIN does not specify a directory'; \ elif [ ! -f /home/master/mozilla-central-objff/dist/bin/xpcshell ]; then \ echo 'xpcshell not found in MOZ_HOST_BIN'; \ elif [ '' = '' -a 'adb' != 'adb' ]; then \ echo 'please prepare your host with the environment variable TEST_DEVICE'; \ else \ rm -f ./mochitest-robocop.log && /home/master/mozilla-central-droid/_virtualenv/bin/python _tests/testing/mochitest/runtestsremote.py --robocop-apk=./build/mobile/robocop/robocop-debug.apk --robocop-ids=./mobile/android/base/fennec_ids.txt --robocop-ini=_tests/testing/mochitest/robocop.ini --log-tbpl=./mochitest-robocop.log --dm_trans=adb --app=org.mozilla.fennec --deviceIP= --xre-path=/home/master/mozilla-central-objff/dist/bin --symbols-path=dist/crashreporter-symbols --test-path='testSelectionHandler' ; \ fi 0:09.31 LOG: MainThread ERROR Automation Error: Exception caught while running tests Traceback (most recent call last): File "_tests/testing/mochitest/runtestsremote.py", line 639, in run_test_harness result = mochitest.runTests(options) File "/home/master/mozilla-central-droid/_tests/testing/mochitest/runtests.py", line 2111, in runTests return self.runMochitests(options, testsToRun, onLaunch) File "/home/master/mozilla-central-droid/_tests/testing/mochitest/runtests.py", line 2048, in runMochitests result = self.doTests(options, onLaunch, testsToRun) File "/home/master/mozilla-central-droid/_tests/testing/mochitest/runtests.py", line 2183, in doTests self.manifest = self.buildProfile(options) File "_tests/testing/mochitest/runtestsremote.py", line 177, in buildProfile manifest = Mochitest.buildProfile(self, options) File "/home/master/mozilla-central-droid/_tests/testing/mochitest/runtests.py", line 1436, in buildProfile self.copyExtraFilesToProfile(options) File "/home/master/mozilla-central-droid/_tests/testing/mochitest/runtests.py", line 879, in copyExtraFilesToProfile shutil.copytree(abspath, dest) File "/usr/lib/python2.7/shutil.py", line 177, in copytree os.makedirs(dst) File "/home/master/mozilla-central-droid/_virtualenv/lib/python2.7/os.py", line 157, in makedirs mkdir(name, mode) OSError: [Errno 17] File exists: '/tmp/tmpzqg6JT.mozrunner/plugins' 0:09.38 LOG: MainThread WARNING Unable to retrieve log file (/storage/sdcard0/tests/logs/mochitest.log) from remote device INFO | runtests.py | Test summary: start. 0 INFO SimpleTest START 1 INFO TEST-START | Shutdown 2 INFO Passed: 0 3 INFO Failed: 0 4 INFO Todo: 0 5 INFO SimpleTest FINISHED INFO | runtests.py | Test summary: end. 0:09.78 SUITE_END: MainThread Summary ======= Ran 0 tests Expected results: 0 Unexpected results: 0 OK make: *** [mochitest-robocop] Error 1

What is the command line you're using to run this? Are you using mach?

This looks like the same error as bug 1162479, if you are using the make targets, please try running: |mach robocop| instead.

I'm duping this to the other bug because the other one has a more general description.

Yep, old-school using the make syntax ... switched and all is well ... "someone moved my cheese" :-)