I'm a user of your wonderful extension. But since the 2016-02-29, the pannel is empty.
I'm not able to help you with that, just wanted to let you know.
Good luck and thanks for your amazing work.
(mozregression) twidi:~$ mozregression --good 2016-02-25
0:00.48 INFO: No 'bad' option specified, using 2016-03-01
0:06.01 INFO: Testing good and bad builds to ensure that they are really good and bad...
0:06.01 INFO: Downloading build from: https://archive.mozilla.org/pub/firefox/nightly/2016/02/2016-02-25-03-02-09-mozilla-central/firefox-47.0a1.en-US.linux-x86_64.tar.bz2
===== Downloaded 100% =====
0:51.46 INFO: Running mozilla-central build for 2016-02-25
1:03.49 INFO: Launching /tmp/user/1001/tmpmCI6Xj/firefox/firefox
1:03.49 INFO: application_buildid: 20160225030209
1:03.49 INFO: application_changeset: c1e0d1890cfee9d86c8d566b0490053f21e0afc6
1:03.49 INFO: application_name: Firefox
1:03.49 INFO: application_repository: https://hg.mozilla.org/mozilla-central
1:03.49 INFO: application_version: 47.0a1
Was this nightly build good, bad, or broken? (type 'good', 'bad', 'skip', 'retry' or 'exit' and press Enter): good
1:54.30 INFO: Using local file: /home/twidi/.mozilla/mozregression/persist/2016-03-01--mozilla-central--firefox-47.0a1.en-US.linux-x86_64.tar.bz2 (downloaded in background)
1:54.30 INFO: Running mozilla-central build for 2016-03-01
2:06.14 INFO: Launching /tmp/user/1001/tmp1w7fck/firefox/firefox
2:06.15 INFO: application_buildid: 20160301030237
2:06.15 INFO: application_changeset: 8ef94be995a453f5c464278c53478ba8c8554f81
2:06.15 INFO: application_name: Firefox
2:06.15 INFO: application_repository: https://hg.mozilla.org/mozilla-central
2:06.15 INFO: application_version: 47.0a1
Was this nightly build good, bad, or broken? (type 'good', 'bad', 'skip', 'retry' or 'exit' and press Enter): bad
3:55.22 INFO: Good and bad builds are correct. Let's continue the bisection.
3:55.22 INFO: Pushlog:
https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=c1e0d1890cfee9d86c8d566b0490053f21e0afc6&tochange=8ef94be995a453f5c464278c53478ba8c8554f81
3:55.22 INFO: Using local file: /home/twidi/.mozilla/mozregression/persist/2016-02-28--mozilla-central--firefox-47.0a1.en-US.linux-x86_64.tar.bz2 (downloaded in background)
3:55.22 INFO: Running mozilla-central build for 2016-02-28
4:07.66 INFO: Launching /tmp/user/1001/tmpDzChNr/firefox/firefox
4:07.66 INFO: application_buildid: 20160228030239
4:07.66 INFO: application_changeset: 5e0140b6d11821e0c2a2de25bc5431783f03380a
4:07.66 INFO: application_name: Firefox
4:07.66 INFO: application_repository: https://hg.mozilla.org/mozilla-central
4:07.66 INFO: application_version: 47.0a1
Was this nightly build good, bad, or broken? (type 'good', 'bad', 'skip', 'retry' or 'exit' and press Enter): good
5:50.12 INFO: Narrowed nightly regression window from [2016-02-25, 2016-03-01] (5 days) to [2016-02-28, 2016-03-01] (2 days) (~1 steps left)
5:50.12 INFO: Pushlog:
https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=5e0140b6d11821e0c2a2de25bc5431783f03380a&tochange=8ef94be995a453f5c464278c53478ba8c8554f81
5:50.12 INFO: Using local file: /home/twidi/.mozilla/mozregression/persist/2016-02-29--mozilla-central--firefox-47.0a1.en-US.linux-x86_64.tar.bz2 (downloaded in background)
5:50.12 INFO: Running mozilla-central build for 2016-02-29
6:01.85 INFO: Launching /tmp/user/1001/tmpTGQ3kz/firefox/firefox
6:01.86 INFO: application_buildid: 20160229030448
6:01.86 INFO: application_changeset: 9da51cb4974e03cdd8fa45a34086fe1033abfeaf
6:01.86 INFO: application_name: Firefox
6:01.86 INFO: application_repository: https://hg.mozilla.org/mozilla-central
6:01.86 INFO: application_version: 47.0a1
Was this nightly build good, bad, or broken? (type 'good', 'bad', 'skip', 'retry', 'back' or 'exit' and press Enter): bad
7:51.39 INFO: Narrowed nightly regression window from [2016-02-28, 2016-03-01] (2 days) to [2016-02-28, 2016-02-29] (1 days) (~0 steps left)
7:51.39 INFO: Got as far as we can go bisecting nightlies...
7:51.39 INFO: Last good revision: 5e0140b6d11821e0c2a2de25bc5431783f03380a (2016-02-28)
7:51.39 INFO: First bad revision: 9da51cb4974e03cdd8fa45a34086fe1033abfeaf (2016-02-29)
7:51.39 INFO: Pushlog:
https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=5e0140b6d11821e0c2a2de25bc5431783f03380a&tochange=9da51cb4974e03cdd8fa45a34086fe1033abfeaf
7:51.39 INFO: Switching bisection method to taskcluster
7:51.39 INFO: Getting mozilla-central builds between 5e0140b6d11821e0c2a2de25bc5431783f03380a and 9da51cb4974e03cdd8fa45a34086fe1033abfeaf
7:58.68 INFO: Pushlog:
https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=5e0140b6d11821e0c2a2de25bc5431783f03380a&tochange=9da51cb4974e03cdd8fa45a34086fe1033abfeaf
7:58.68 INFO: Downloading build from: https://queue.taskcluster.net/v1/task/YlN4fQ56SQShul-Wnsjzzg/runs/0/artifacts/public%2Fbuild%2Ffirefox-47.0a1.en-US.linux-x86_64.tar.bz2
===== Downloaded 100% =====
8:39.87 INFO: Running mozilla-central build built on 2016-02-29 11:31:48.462000, revision 4972f778
8:52.13 INFO: Launching /tmp/user/1001/tmpcpSTS_/firefox/firefox
8:52.14 INFO: application_buildid: 20160229021614
8:52.14 INFO: application_changeset: 4972f77869de55becd41d6b726b25fca2f523232
8:52.14 INFO: application_name: Firefox
8:52.14 INFO: application_repository: https://hg.mozilla.org/mozilla-central
8:52.14 INFO: application_version: 47.0a1
Was this inbound build good, bad, or broken? (type 'good', 'bad', 'skip', 'retry' or 'exit' and press Enter): bad
10:03.72 INFO: Narrowed inbound regression window from [5e0140b6, 9da51cb4] (3 revisions) to [5e0140b6, 4972f778] (2 revisions) (~1 steps left)
10:03.72 INFO: Oh noes, no (more) inbound revisions :(
10:03.72 INFO: Last good revision: 5e0140b6d11821e0c2a2de25bc5431783f03380a
10:03.72 INFO: First bad revision: 4972f77869de55becd41d6b726b25fca2f523232
10:03.72 INFO: Pushlog:
https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=5e0140b6d11821e0c2a2de25bc5431783f03380a&tochange=4972f77869de55becd41d6b726b25fca2f523232