According to glandium, a previous build left a broken symbols zip, and the new one doesn't remove it when creating its own, and zip defaults to reusing zips that exist. https://tbpl.mozilla.org/php/getParsedLog.php?id=43003948&tree=Mozilla-Inbound
I'm just investigating how to do this.
Since it is a spot instance, I'll just destroy it. Thanks to jlund for the tip! :)
I logged into aws console, and found the public IP address of bld-linux64-spot-015 (126.96.36.199). I considered just blowing away the build directory, but I seem not to be able to connect from the VPN directly, e.g.: $ ssh email@example.com rm -rf /builds/slave/b2g_m-in_emu-jb_dep-0000000000 ssh: connect to host 188.8.131.52 port 22: Operation timed out So I'll just terminate the spot instance, as jlund wisely suggested.