Options:
1) Upgrade the tester bot to trusty
2) Make the sysroot work with gcc.

Will use option 3) Switch bot to swarming and let it use trusty slaves with up-to-date libraries installed.

The following revision refers to this bug:
  https://chromium.googlesource.com/v8/v8.git/+/84124ce219778282794d4e904835bb0c3b3cb518

commit 84124ce219778282794d4e904835bb0c3b3cb518
Author: machenbach <machenbach@chromium.org>
Date: Tue Jul 05 11:58:02 2016

[build] Switch x87 to swarming.

BUG= chromium:625793 
NOTRY=true
TBR=vogelheim@chromium.org, zhengxing.li@intel.com

Review-Url: https://codereview.chromium.org/2124763002
Cr-Commit-Position: refs/heads/master@{#37525}

[modify] https://crrev.com/84124ce219778282794d4e904835bb0c3b3cb518/infra/mb/mb_config.pyl

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/tools/build.git/+/6120e3f63c5a012dddfa795d2ffb8b19e0aa3b16

commit 6120e3f63c5a012dddfa795d2ffb8b19e0aa3b16
Author: machenbach <machenbach@chromium.org>
Date: Tue Jul 05 12:08:50 2016

V8: Switch x87 bots to swarming.

Requires:
https://codereview.chromium.org/2124763002/

BUG= chromium:625793 
TBR=tandrii@chromium.org, zhengxing.li@intel.com

Review-Url: https://codereview.chromium.org/2126533002

[modify] https://crrev.com/6120e3f63c5a012dddfa795d2ffb8b19e0aa3b16/scripts/slave/recipe_modules/v8/builders.py
[modify] https://crrev.com/6120e3f63c5a012dddfa795d2ffb8b19e0aa3b16/scripts/slave/recipes/v8.expected/full_client_v8_ports_V8_Linux___x87___nosnap___debug.json
[modify] https://crrev.com/6120e3f63c5a012dddfa795d2ffb8b19e0aa3b16/scripts/slave/recipes/v8.expected/full_client_v8_ports_V8_Linux___x87___nosnap___debug_builder.json

The following revision refers to this bug:
  https://chrome-internal.googlesource.com/chrome/tools/build_limited/scripts/slave/+/e3de3f76bfa0344e6693ae1829679dd6ec9a6f38

commit e3de3f76bfa0344e6693ae1829679dd6ec9a6f38
Author: recipe-roller <recipe-roller@chromium.org>
Date: Tue Jul 05 12:18:04 2016

The following revision refers to this bug:
  https://chromium.googlesource.com/infra/infra.git/+/54f8a491845f7bbe4d49b1271375ba2440233633

commit 54f8a491845f7bbe4d49b1271375ba2440233633
Author: recipe-roller <recipe-roller@chromium.org>
Date: Tue Jul 05 12:27:21 2016

Roll recipe dependencies (trivial).

This is an automated CL created by the recipe roller. This CL rolls recipe
changes from upstream projects (e.g. depot_tools) into downstream projects
(e.g. tools/build).

More info is at https://goo.gl/zkKdpD. Use https://goo.gl/noib3a to file a bug
(or complain)

build:
  https://crrev.com/6120e3f63c5a012dddfa795d2ffb8b19e0aa3b16 V8: Switch x87 bots to swarming. (machenbach@chromium.org)

R=zhengxing.li@intel.com,tandrii@chromium.org,machenbach@chromium.org
BUG= chromium:625793 

TBR=martiniss@chromium.org,phajdan.jr@chromium.org

Review-Url: https://codereview.chromium.org/2126543002

[modify] https://crrev.com/54f8a491845f7bbe4d49b1271375ba2440233633/infra/config/recipes.cfg

Fixed. First build is beyond the described problem:
https://build.chromium.org/p/client.v8.ports/builders/V8%20Linux%20-%20x87%20-%20nosnap%20-%20debug/builds/203

If there are other problems related to this switch, please reopen.