+++ This bug was initially created as a clone of Bug #1004610 +++ These seem to be hitting the same crash reporter crashes (bug 997191, bug 999871, etc) on every run. Hidden on all trunk trees.

Note that the log you linked me (https://tbpl.mozilla.org/php/getParsedLog.php?id=38883503&tree=B2g-Inbound ) shows that this has nothing to do with the crashreporter, it's just an assertion. Something is causing an assertion on child process shutdown. 11:19:40 INFO - [Child 4129] WARNING: Leaking the RDF Service.: file /builds/slave/b2g-in-l64_g-d-000000000000000/build/rdf/build/nsRDFModule.cpp, line 165 11:19:40 INFO - [Child 4129] ###!!! ASSERTION: Component Manager being held past XPCOM shutdown.: 'cnt == 0', file /builds/slave/b2g-in-l64_g-d-000000000000000/build/xpcom/build/nsXPComInit.cpp, line 937 11:19:40 INFO - XRE_TermEmbedding [toolkit/xre/nsEmbedFunctions.cpp:188] 11:19:40 INFO - mozilla::ipc::ScopedXREEmbed::Stop() [ipc/glue/ScopedXREEmbed.cpp:111] 11:19:40 INFO - XRE_InitChildProcess [toolkit/xre/nsEmbedFunctions.cpp:521] 11:19:40 INFO - main [ipc/app/MozillaRuntimeMain.cpp:152] 11:19:40 INFO - libc.so.6 + 0x2176d 11:19:40 INFO - plugin-container + 0x3099 11:19:40 INFO - [Child 4129] WARNING: '!compMgr', file /builds/slave/b2g-in-l64_g-d-000000000000000/build/xpcom/glue/nsComponentManagerUtils.cpp, line 59 11:19:40 INFO - Assertion failure: work_queue_.empty(), at /builds/slave/b2g-in-l64_g-d-000000000000000/build/ipc/chromium/src/base/message_loop.cc:406

Lots of asserts on b2g30. Hidden there too. https://tbpl.mozilla.org/php/getParsedLog.php?id=38885707&tree=Mozilla-B2g30-v1.4

These no longer run and Mulet has mochitest-plain working on it.

OK, amend that last statement to "and Mulet doesn't run debug builds at all, let alone test them if they did"