Fixes #27805 - adds missing snapshots for Bitrig and FreeBSD

[dhuseby]

@alexcrichton please upload these snapshots when landing this patch:

https://github.com/dhuseby/rust-manual-snapshots/raw/master/rust-stage0-2015-08-11-1af31d4-bitrig-x86_64-739e0635cd5a1b3635f1457aae3ef6390ea9a7a8.tar.bz2
https://github.com/dhuseby/rust-manual-snapshots/raw/master/rust-stage0-2015-08-11-1af31d4-freebsd-i386-3cd4a44fb97b3135be3d1b760bea604a381e85dc.tar.bz2
https://github.com/dhuseby/rust-manual-snapshots/raw/master/rust-stage0-2015-08-11-1af31d4-freebsd-x86_64-de1f36592bac0eeb90c049a8421246652c511b9e.tar.bz2

[rust-highfive]

r? @alexcrichton

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[dhuseby]

doh!

[alexcrichton]

@bors: r+ fe5336b

[dhuseby]

@alexcrichton I really need to figure out why the snapshots are building and being included automagically. Any ideas? Is it just test pass/compile failures or is it second-tier status?

[alexcrichton]

We currently run make check on the snapshot bots, and I believe that because the auto bots are failing it means the snapshot bots will fail tests so the normal snapshot process doesn't work.

[dhuseby]

so the bitrig bot was working just fine until the new snapshots were made and added to src/snapshots.txt, then the compiles started failing because there wasn't a bitrig snapshot. AFAICT, the bitrig build bot should be able to produce snapshots. i'm less confident in the freebsd ones because there are some tests failing...at least on 32-bit for sure and maybe 64.

[alexcrichton]

Yeah it looks like bitrig should have produced a snapshot, but here's the logs for why it failed: http://buildbot.rust-lang.org/builders/snap3-bitrig-64/builds/130/steps/compile/logs/stdio. Notably:

command timed out: 1800 seconds without output running ['gmake'], attempting to kill
process killed by signal 13
program finished with exit code -1

Perhaps it was swapping when compiling librustc? I've noticed it's lagged behind quite a bit on auto builds. If it was running both an auto build and a snap build it may have failed (we may just want to throttle the number of builds on the bot)

[dhuseby]

ah yeah, i was having some stability issues last week with the bitrig buildbot vm. it's been stable for the last week after upgrading the kernel and system libs.

[bors]

⌛ Testing commit fe5336b with merge e907fab...

[bors]

☀️ Test successful - auto-linux-32-nopt-t, auto-linux-32-opt, auto-linux-64-nopt-t, auto-linux-64-opt, auto-linux-64-x-android-t, auto-mac-32-opt, auto-mac-64-nopt-t, auto-mac-64-opt, auto-win-gnu-32-nopt-t, auto-win-gnu-32-opt, auto-win-gnu-64-nopt-t, auto-win-gnu-64-opt, auto-win-msvc-32-opt, auto-win-msvc-64-opt