[Swift CI] Build Failure: 0. OSS - Swift Incremental RA - OS X (master) #8288

This is an instance of an assertion that has been hitting some bots (rdar://problem/30351514 <rdar://problem/30351514>) - on Doug G. Not related to update-checkout.



On Feb 8, 2017, at 12:39 PM, no-reply@swift.org wrote:

[FAILURE] oss-swift-incremental-RA-osx [#8288]

Build URL: https://ci.swift.org/job/oss-swift-incremental-RA-osx/8288/
Project: oss-swift-incremental-RA-osx
Date of build: Wed, 08 Feb 2017 12:31:03 -0800
Build duration: 8 min 42 sec
Identified problems:

Assertion failure: This build failed because of an assertion failure. Below is a list of all errors in the build log:
Indication 1 <https://ci.swift.org//job/oss-swift-incremental-RA-osx/8288/consoleFull#-417070157c38edd5a-00f9-40a2-abac-1db59f7a90ca&gt;

Commit fecbd22cb40b91b5c31348d7d286b520c464df46 by colin.d.howell:
utils/update-checkout: Rework for more parallelism in updates

edit: utils/update-checkout