[Swift CI] Build Failure: 0. OSS - Swift Incremental RA - Ubuntu 15.10 (master) #5708

Development CI Notifications
1

I don't think the failure was caused by my change? I can spin up a VM and try running the test suite there.

```
******************** TEST 'Swift :: AutolinkExtract/import_archive.swift' FAILED ********************
Script:

···

--
(...)
Exit Code: 254

Command Output (stderr):
--
<>clang-3.9: error: unable to execute command: Bus error (core dumped)
clang-3.9: error: linker command failed due to signal (use -v to see invocation)
<unknown>:0: error: link command failed with exit code 254 (use -v to see invocation)
```

On Jun 14, 2016, at 11:42 PM, no-reply@swift.org wrote:

[FAILURE] oss-swift-incremental-RA-linux-ubuntu-15_10 [#5708]

Build URL: https://ci.swift.org/job/oss-swift-incremental-RA-linux-ubuntu-15_10/5708/
Project: oss-swift-incremental-RA-linux-ubuntu-15_10
Date of build: Tue, 14 Jun 2016 23:31:01 -0700
Build duration: 11 min
Identified problems:

Compile Error: This build failed because of a compile error. Below is a list of all errors in the build log:
Indication 1 <https://ci.swift.org//job/oss-swift-incremental-RA-linux-ubuntu-15_10/5708/consoleFull#-1179840803ee1a197b-acac-4b17-83cf-a53b95139a76&gt;
Regression test failed: This build failed because a regression test in the test suite FAILed. Below is a list of all errors:
Indication 1 <https://ci.swift.org//job/oss-swift-incremental-RA-linux-ubuntu-15_10/5708/consoleFull#1397013932fca400bf-2f4a-462e-b517-e058d770b2d7&gt;
Tests:

Name: Swift
Failed: 1 test(s), Passed: 8029 test(s), Total: 8030 test(s)
Failed: Swift.AutolinkExtract.import_archive.swift <https://ci.swift.org/job/oss-swift-incremental-RA-linux-ubuntu-15_10/5708/testReport/junit/Swift/AutolinkExtract/import_archive_swift&gt;
Name: Swift-Unit
Failed: 0 test(s), Passed: 292 test(s), Total: 292 test(s)

Changes

Commit 6042ee02442c3cb0cb800b8e35ff4c653ed57c48 by austinzheng:
[gardening] Add `.self` to suppress compiler warnings

edit: stdlib/private/StdlibCollectionUnittest/CheckMutableCollectionType.swift.gyb
edit: stdlib/private/StdlibCollectionUnittest/CheckCollectionType.swift.gyb
edit: stdlib/private/StdlibCollectionUnittest/CheckRangeReplaceableSliceType.swift
edit: stdlib/private/StdlibCollectionUnittest/CheckRangeReplaceableCollectionType.swift
edit: stdlib/private/StdlibCollectionUnittest/CheckSequenceType.swift
edit: test/SILOptimizer/peephole_trunc_and_ext.sil
edit: stdlib/public/core/VarArgs.swift
edit: benchmark/single-source/BitCount.swift