Why does this asan try run fail?

[Nico Weber]

Hi,

we're running a try job on the asan bot. A handful tests come back red, but it's not clear to us from the build log why they're failing.

Does anyone see what's up?

http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_asan_rel/builds/39138

Thanks,

Nico

ps: More details: https://code.google.com/p/chromium/issues/detail?id=444089#c55

pps: Way too many things print "warning: foo" for boring things that happen on every run, which makes this way harder than necessary :-(