http://autobuilder.yoctoproject.org:8011/builders/nightly-arm/builds/84/steps/Running%20Sanity%20Tests/logs/stdio | Test_Info: IP 192.168.7.2 is not up | Test_Info: Wait for Qemu Network up | Test_Info: IP 192.168.7.2 is not up | Test_Info: Wait for Qemu Network up | Test_Info: IP 192.168.7.2 is not up | Test_Info: Wait for Qemu Network up | Test_Info: IP 192.168.7.2 is not up | Test_Info: Wait for Qemu Network up | Test_Info: Qemu or its network is not up in 120 seconds | Saving 11931 192.168.7.2 to /srv/home/pokybuild/yocto-autobuilder-new/yocto-slave/nightly-arm/build/build/tmp/work/qemuarm-poky-linux-gnueabi/core-image-minimal/1.0-r0/qemuimagetest/tmp/target_ip | Test_Info: Boot Test FAIL | killing 4796 | killing 11931 | NOTE: Test Result for qemuarm core-image-minimal | NOTE: Testcase PASS FAIL NORESULT | NOTE: Boot 0 1 0 | DEBUG: Python function do_qemuimagetest_standalone finished | ERROR: Function failed: Some testcases fail, pls. check test result and test log!!! ERROR: Task 0 (/srv/home/pokybuild/yocto-autobuilder-new/yocto-slave/nightly-arm/build/meta/recipes-core/images/core-image-minimal.bb, do_qemuimagetest_standalone) failed with exit code '1' Summary: There was 1 ERROR message shown, returning a non-zero exit code. Not sure this is actually related to the autobuilder, but I couldn't find a better category.
http://git.yoctoproject.org/cgit.cgi/poky/commit/?id=6d4d42d63db4c3fcffd831ce359599f3ee1d710e is the best guess fix for this at this point.
We've not seen this particular problem since this fix went in so we can assume it was a timeout related problem and is now resolved.