It's sporadic. We've been mostly unable to reproduce it on demand and aren't 
yet sure why it occurs. Hopefully this week we'll get it!

Jordan

> On Feb 26, 2017, at 22:54, Andrew Trick via swift-dev <swift-dev@swift.org> 
> wrote:
> 
> Building CoreAudio on armv7k:
> 
> (dependent_member_type assoc_type=Swift.(file).Strideable.Stride
>   (base=generic_type_param_type depth=0 index=0 decl=Swift.(file).func 
> decl.T))
> deserialization produced an invalid type (rdar://problem/30382791 
> <rdar://problem/30382791>)
>  <>UNREACHABLE executed at 
> /Users/buildnode/jenkins/workspace/oss-swift-incremental-RA-osx/swift/lib/Serialization/Deserialization.cpp:4246!
> 
> Looks like there’s already a radar for this. Slava, I don’t know if this is 
> just sporadic or if you've exposed something.
> 
> -Andy
> 
>> On Feb 26, 2017, at 10:50 PM, no-re...@swift.org <mailto:no-re...@swift.org> 
>> wrote:
>> 
>> [FAILURE] oss-swift-incremental-RA-osx [#8580]
>> 
>> Build URL:   https://ci.swift.org/job/oss-swift-incremental-RA-osx/8580/ 
>> <https://ci.swift.org/job/oss-swift-incremental-RA-osx/8580/>
>> Project:     oss-swift-incremental-RA-osx
>> Date of build:       Sun, 26 Feb 2017 22:43:33 -0800
>> Build duration:      6 min 52 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/8580/consoleFull#1617321272c38edd5a-00f9-40a2-abac-1db59f7a90ca>
>> Changes
>> 
>> Commit 38d44c216405817bd8f42b474b7aa968eb12f364 by atrick:
>> AddressLowering: rewrite the call-site lowering logic.
>> 
>> edit: test/SILOptimizer/address_lowering.sil
>> edit: include/swift/SIL/SILBuilder.h
>> edit: include/swift/SIL/SILFunctionConventions.h
>> edit: lib/SILOptimizer/Mandatory/AddressLowering.cpp
>> 
>> Commit 754c7feb2669bf93ec80a9d30ed4c38b9c279a55 by spestov:
>> IRGen: Use SubstitutionMap in one spot
>> 
>> edit: lib/IRGen/IRGenSIL.cpp
>> 
>> Commit 0af2845c6ddfb2e3e2afa5569cec278dd4bdf9e6 by spestov:
>> SILGen: Emission of materializeForSet for generic subscripts
>> 
>> edit: lib/SILGen/SILGenLValue.cpp
>> edit: test/SILGen/lifetime.swift
>> edit: test/SILGen/accessors.swift
>> edit: lib/SIL/SILVerifier.cpp
>> edit: test/SILGen/materializeForSet.swift
>> edit: test/SILGen/constrained_extensions.swift
>> edit: test/SILGen/addressors.swift
>> edit: test/SILGen/properties.swift
>> edit: test/SILOptimizer/devirt_materializeForSet.swift
>> edit: lib/SIL/TypeLowering.cpp
>> edit: lib/SILGen/SILGenMaterializeForSet.cpp
>> edit: include/swift/SIL/TypeLowering.h
>> 
>> Commit 8b0094fe42d1081c3cc43a952f788a1d345d64ec by spestov:
>> Add executable test for generic subscripts
>> 
>> add: test/Interpreter/generic_subscript.swift
>> 
>> Commit fa8f2ce503f114987e80f81846b0bc2f5286f28d by spestov:
>> Add CHANGELOG.md entries for SE-0110 and SE-0148
>> 
>> edit: CHANGELOG.md
> 
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