sporadic build break due to contention on output of runtime.native.System.IO.Ports

[danmoseley]

(using latest runtime-main in runtimelab, which closely matches runtime main)

https://dev.azure.com/dnceng/9ee6d478-d288-47f7-aacc-f6e6d082ae6d/_apis/build/builds/1282740/logs/50

2021-08-08T21:03:01.3591342Z D:\workspace\_work\1\s\.packages\microsoft.sourcelink.common\1.1.0-beta-20206-02\build\Microsoft.SourceLink.Common.targets(52,5): error : Error writing to source link file 'D:\workspace\_work\1\s\artifacts\obj\runtime.native.System.IO.Ports\netstandard2.0-Release\runtime.native.System.IO.Ports.sourcelink.json': The process cannot access the file 'D:\workspace\_work\1\s\artifacts\obj\runtime.native.System.IO.Ports\netstandard2.0-Release\runtime.native.System.IO.Ports.sourcelink.json' because it is being used by another process. [D:\workspace\_work\1\s\src\libraries\System.IO.Ports\pkg\runtime.native.System.IO.Ports.proj]
2021-08-08T21:03:01.3703075Z ##[error].packages\microsoft.sourcelink.common\1.1.0-beta-20206-02\build\Microsoft.SourceLink.Common.targets(52,5): error : (NETCORE_ENGINEERING_TELEMETRY=Build) Error writing to source link file 'D:\workspace\_work\1\s\artifacts\obj\runtime.native.System.IO.Ports\netstandard2.0-Release\runtime.native.System.IO.Ports.sourcelink.json': The process cannot access the file 'D:\workspace\_work\1\s\artifacts\obj\runtime.native.System.IO.Ports\netstandard2.0-Release\runtime.native.System.IO.Ports.sourcelink.json' because it is being used by another process.
2021-08-08T21:03:01.3756133Z   runtime.native.System.IO.Ports -> 

Usually this means the project is building twice concurrently (ie., with different global properties)
In a working build,

Note this is the neutral architecture flavor, ie, there are:

artifacts\obj\runtime.linux-arm.runtime.native.System.IO.Ports
artifacts\obj\runtime.linux-arm64.runtime.native.System.IO.Ports
artifacts\obj\runtime.linux-x64.runtime.native.System.IO.Ports
artifacts\obj\runtime.native.System.IO.Ports
artifacts\obj\runtime.osx-x64.runtime.native.System.IO.Ports

Looking at the log from a successful OSX build, it appears the project is being built twice:

2021-08-08T20:59:53.6424340Z   runtime.native.System.IO.Ports -> 
2021-08-08T20:59:53.6951010Z   runtime.osx-x64.runtime.native.System.IO.Ports -> 
2021-08-08T20:59:58.8549420Z   runtime.linux-arm.runtime.native.System.IO.Ports -> 
2021-08-08T20:59:58.9744190Z   runtime.linux-arm64.runtime.native.System.IO.Ports -> 
2021-08-08T20:59:59.1130890Z   runtime.linux-x64.runtime.native.System.IO.Ports -> 
2021-08-08T20:59:59.3925740Z   runtime.osx-x64.runtime.native.System.IO.Ports -> 
2021-08-08T21:00:04.5208820Z   runtime.native.System.IO.Ports -> 

@ericstj any thoughts about where the issue might be? Ill try to get the bin log.

[ghost]

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Issue Details

---

(using latest runtime-main in runtimelab, which closely matches runtime main)

https://dev.azure.com/dnceng/9ee6d478-d288-47f7-aacc-f6e6d082ae6d/_apis/build/builds/1282740/logs/50

2021-08-08T21:03:01.3591342Z D:\workspace\_work\1\s\.packages\microsoft.sourcelink.common\1.1.0-beta-20206-02\build\Microsoft.SourceLink.Common.targets(52,5): error : Error writing to source link file 'D:\workspace\_work\1\s\artifacts\obj\runtime.native.System.IO.Ports\netstandard2.0-Release\runtime.native.System.IO.Ports.sourcelink.json': The process cannot access the file 'D:\workspace\_work\1\s\artifacts\obj\runtime.native.System.IO.Ports\netstandard2.0-Release\runtime.native.System.IO.Ports.sourcelink.json' because it is being used by another process. [D:\workspace\_work\1\s\src\libraries\System.IO.Ports\pkg\runtime.native.System.IO.Ports.proj]
2021-08-08T21:03:01.3703075Z ##[error].packages\microsoft.sourcelink.common\1.1.0-beta-20206-02\build\Microsoft.SourceLink.Common.targets(52,5): error : (NETCORE_ENGINEERING_TELEMETRY=Build) Error writing to source link file 'D:\workspace\_work\1\s\artifacts\obj\runtime.native.System.IO.Ports\netstandard2.0-Release\runtime.native.System.IO.Ports.sourcelink.json': The process cannot access the file 'D:\workspace\_work\1\s\artifacts\obj\runtime.native.System.IO.Ports\netstandard2.0-Release\runtime.native.System.IO.Ports.sourcelink.json' because it is being used by another process.
2021-08-08T21:03:01.3756133Z   runtime.native.System.IO.Ports -> 

Usually this means the project is building twice concurrently (ie., with different global properties)
In a working build,

Note this is the neutral architecture flavor, ie, there are:

artifacts\obj\runtime.linux-arm.runtime.native.System.IO.Ports
artifacts\obj\runtime.linux-arm64.runtime.native.System.IO.Ports
artifacts\obj\runtime.linux-x64.runtime.native.System.IO.Ports
artifacts\obj\runtime.native.System.IO.Ports
artifacts\obj\runtime.osx-x64.runtime.native.System.IO.Ports

Looking at the log from a successful OSX build, it appears the project is being built twice:

2021-08-08T20:59:53.6424340Z   runtime.native.System.IO.Ports -> 
2021-08-08T20:59:53.6951010Z   runtime.osx-x64.runtime.native.System.IO.Ports -> 
2021-08-08T20:59:58.8549420Z   runtime.linux-arm.runtime.native.System.IO.Ports -> 
2021-08-08T20:59:58.9744190Z   runtime.linux-arm64.runtime.native.System.IO.Ports -> 
2021-08-08T20:59:59.1130890Z   runtime.linux-x64.runtime.native.System.IO.Ports -> 
2021-08-08T20:59:59.3925740Z   runtime.osx-x64.runtime.native.System.IO.Ports -> 
2021-08-08T21:00:04.5208820Z   runtime.native.System.IO.Ports -> 

@ericstj any thoughts about where the issue might be? Ill try to get the bin log.

Author:	danmoseley
Assignees:	-
Labels:	area-Infrastructure-libraries
Milestone:	-

[safern]

@ViktorHofer could it be related to the change of not having pkgproj's anymore?

[ViktorHofer]

It most definitely is related to my change as before those files didn't exist. There's an offline Teams thread about this in which I commented that I will look into the issue. Haven't had time for it yet though.

[ViktorHofer]

The binlog was overwritten by the second attempt :(

[ViktorHofer]

Should be fixed by #57118. The runtime.native.System.IO.Ports.proj project was indeed overbuilding. That said, without a binlog I can't figure out why global properties differed.