Spurious Android testing failure: connection reset by peer

[alexcrichton]

First seen as https://travis-ci.org/rust-lang/rust/jobs/187737907, I've also seen this from time to time on other locations but haven't ever tracked it down. Wanted to have an issue to track it though!

Failures tend to look like:

---- [debuginfo-gdb] debuginfo-gdb/vec.rs stdout ----
	NOTE: compiletest thinks it is using GDB without native rust support
error: line not found in debugger output: $1 = {1, 2, 3}
status: exit code: 0
command: arm-linux-androideabi-gdb -quiet -batch -nx -command=/checkout/obj/build/x86_64-unknown-linux-gnu/test/debuginfo/vec.debugger.script
stdout:
------------------------------------------
------------------------------------------
stderr:
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/checkout/obj/build/x86_64-unknown-linux-gnu/test/debuginfo/vec.debugger.script:4: Error in sourced command file:
Remote communication error.  Target disconnected.: Connection reset by peer.
------------------------------------------
thread '[debuginfo-gdb] debuginfo-gdb/vec.rs' panicked at 'explicit panic', /checkout/src/tools/compiletest/src/runtest.rs:2465