[standalone-build-x86_64] Increase timeout

[kwk]

Summary

I'm seeing this error on my standalone-build-x86_64 builder:

[Failure instance: Traceback (failure with no frames): <class 'twisted.internet.error.ConnectionLost'>: Connection to the other side was lost in a non-clean fashion.]

To be fair, the machine isn't particularly fast because we tried to get
the configuration right first before we invest to much money.

I hope this change fixes the error from above.

[gkistanova]

Hi Konrad,

“Connection to the other side was lost in a non-clean fashion.“ means the network connection went down. It has nothing to do with the timeout value you are trying to tweak.

Is it possible that your worker goes down or gets overloaded so much that it cannot handle network traffic? Like swapping memory perhaps? Or VM gets recycled?

[kwk]

I've found the error and now my worker is running fine since yesterday. I started the worker container in detached mode but quit the SSH session. This eventually caused the container to get a SIGTERM (143).

buildbot/osuosl/master/config/builders.py

# Builders for ML-driven compiler optimizations.
     {'name' : "standalone-build-x86_64",
     'tags'  : ["clang"],
     'collapseRequests': False,
     'workernames':["standalone-build-x86_64"],
     'builddir':"standalone-build-x86_64",
     'factory' : AnnotatedBuilder.getAnnotatedBuildFactory(
                     script="standalone-build.sh",
                     checkout_llvm_sources=False,
+                    timeout=2400,
                     script_interpreter=None)},
 
     ## CSKY check-all + test-suite in soft-float
     {'name' : "clang-csky-soft",
     'tags'  : ["clang"],
     'workernames' : ["thead-clang-csky"],
     'builddir':"clang-csky-softfp",
     'factory' : ClangBuilder.getClangCMakeBuildFactory(