TestBuildLocalDistsWithCtypesNativeSources.test_ctypes_cpp_dist is flaky

[Eric-Arellano]

From the file pants_test/backend/python/tasks/test_ctypes.

Looks like networking flakiness?

                     ==================== FAILURES ====================
                      TestBuildLocalDistsWithCtypesNativeSources.test_ctypes_cpp_dist 
                     
                     self = <pants_test.backend.python.tasks.test_ctypes.TestBuildLocalDistsWithCtypesNativeSources testMethod=test_ctypes_cpp_dist>
                     
                         def test_ctypes_cpp_dist(self):
                           platform_specific_dist = self.target_dict['platform_specific_ctypes_cpp_dist']
                           context, synthetic_target, snapshot_version = self._create_distribution_synthetic_target(
                     >       platform_specific_dist, extra_targets=[self.target_dict['ctypes_cpp_library']])
                     
                     .pants.d/pyprep/sources/2504840b97e890c0e5d6f0cc457ca9cba597537a/pants_test/backend/python/tasks/test_ctypes.py:114: 
                     _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
                     .pants.d/pyprep/sources/2504840b97e890c0e5d6f0cc457ca9cba597537a/pants_test/backend/python/tasks/util/build_local_dists_test_base.py:128: in _create_distribution_synthetic_target
                         tsk.execute()
                     .pants.d/pyprep/sources/2504840b97e890c0e5d6f0cc457ca9cba597537a/pants/backend/native/tasks/native_compile.py:89: in execute
                         compile_request = self._make_compile_request(vt, deps, external_libs_product)
                     .pants.d/pyprep/sources/2504840b97e890c0e5d6f0cc457ca9cba597537a/pants/backend/native/tasks/native_compile.py:177: in _make_compile_request
                         compiler=self._compiler,
                     .pants.d/pyprep/sources/2504840b97e890c0e5d6f0cc457ca9cba597537a/pants/util/memo.py:118: in memoize
                         result = func(*args, **kwargs)
                     .pants.d/pyprep/sources/2504840b97e890c0e5d6f0cc457ca9cba597537a/pants/backend/native/tasks/native_compile.py:157: in _compiler
                         return self.get_compiler()
                     .pants.d/pyprep/sources/2504840b97e890c0e5d6f0cc457ca9cba597537a/pants/backend/native/tasks/cpp_compile.py:35: in get_compiler
                         return self._request_single(LLVMCppToolchain, self._native_toolchain).cpp_toolchain.cpp_compiler
                     .pants.d/pyprep/sources/2504840b97e890c0e5d6f0cc457ca9cba597537a/pants/backend/native/tasks/native_task.py:105: in _request_single
                         return self.context._scheduler.product_request(product, [subject])[0]
                     .pants.d/pyprep/sources/2504840b97e890c0e5d6f0cc457ca9cba597537a/pants/engine/scheduler.py:522: in product_request
                         self._trace_on_error(unique_exceptions, request)
                     _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
                     
                     self = <pants.engine.scheduler.SchedulerSession object at 0x7f4a99c93f90>
                     unique_exceptions = (BinaryResolutionError(u'Error resolving binary request BinaryRequest(supportdi...n: error("(104, \\\'ECONNRESET\\\')",)\', error("(104, \'ECONNRESET\')",)))',)),)
                     request = ExecutionRequest(roots=((<pants.backend.native.subsystems.native_toolchain.Nat...nt.LLVMCppToolchain'>),), native=<cdata 'struct ExecutionRequest *' 0x25133b0>)
                     
                         def _trace_on_error(self, unique_exceptions, request):
                           exception_noun = pluralize(len(unique_exceptions), 'Exception')
                           if self._scheduler.include_trace_on_error:
                             cumulative_trace = '\n'.join(self.trace(request))
                             raise ExecutionError(
                               '{} encountered:\n{}'.format(exception_noun, cumulative_trace),
                     >         unique_exceptions,
                             )
                     E       ExecutionError: 1 Exception encountered:
                     E       Computing Select(<pants.backend.native.subsystems.native_toolchain.NativeToolchain object at 0x7f4a900c9390>, =LLVMCppToolchain)
                     E         Computing Task(select_llvm_cpp_toolchain, <pants.backend.native.subsystems.native_toolchain.NativeToolchain object at 0x7f4a900c9390>, =LLVMCppToolchain, true)
                     E           Computing Task(select_gcc_install_location, <pants.backend.native.subsystems.binaries.gcc.GCC object at 0x7f4a90039510>, =GCCInstallLocationForLLVM, true)
                     E             Throw((u'Error resolving binary request BinaryRequest(supportdir=bin/gcc, version=7.3.0, name=gcc, platform_dependent=True, external_url_generator=None, archiver=<pants.fs.archive.TarArchiver object at 0x7f4a9ae4df50>): Failed to fetch gcc.tar.gz binary from any source: (Failed to fetch binary from https://binaries.pantsbuild.org/bin/gcc/linux/x86_64/7.3.0/gcc.tar.gz: (\'Connection broken: error("(104, \\\'ECONNRESET\\\')",)\', error("(104, \'ECONNRESET\')",)))', BinaryNotFound(u'Failed to fetch gcc.tar.gz binary from any source: (Failed to fetch binary from https://binaries.pantsbuild.org/bin/gcc/linux/x86_64/7.3.0/gcc.tar.gz: (\'Connection broken: error("(104, \\\'ECONNRESET\\\')",)\', error("(104, \'ECONNRESET\')",)))',)))
                     E               Traceback (most recent call last):
                     E                 File "/home/travis/build/pantsbuild/pants/.pants.d/pyprep/sources/2504840b97e890c0e5d6f0cc457ca9cba597537a/pants/engine/native.py", line 261, in call
                     E                   val = func(*args)
                     E                 File "/home/travis/build/pantsbuild/pants/.pants.d/pyprep/sources/2504840b97e890c0e5d6f0cc457ca9cba597537a/pants/backend/native/subsystems/native_toolchain.py", line 114, in select_gcc_install_location
                     E                   return GCCInstallLocationForLLVM(gcc.select())
                     E                 File "/home/travis/build/pantsbuild/pants/.pants.d/pyprep/sources/2504840b97e890c0e5d6f0cc457ca9cba597537a/pants/util/memo.py", line 118, in memoize
                     E                   result = func(*args, **kwargs)
                     E                 File "/home/travis/build/pantsbuild/pants/.pants.d/pyprep/sources/2504840b97e890c0e5d6f0cc457ca9cba597537a/pants/binaries/binary_tool.py", line 129, in select
                     E                   return self._select_for_version(self.version(context))
                     E                 File "/home/travis/build/pantsbuild/pants/.pants.d/pyprep/sources/2504840b97e890c0e5d6f0cc457ca9cba597537a/pants/binaries/binary_tool.py", line 180, in _select_for_version
                     E                   return self._binary_util.select(binary_request)
                     E                 File "/home/travis/build/pantsbuild/pants/.pants.d/pyprep/sources/2504840b97e890c0e5d6f0cc457ca9cba597537a/pants/binaries/binary_util.py", line 423, in select
                     E                   raise self.BinaryResolutionError(binary_request, e)
                     E               BinaryResolutionError: (u'Error resolving binary request BinaryRequest(supportdir=bin/gcc, version=7.3.0, name=gcc, platform_dependent=True, external_url_generator=None, archiver=<pants.fs.archive.TarArchiver object at 0x7f4a9ae4df50>): Failed to fetch gcc.tar.gz binary from any source: (Failed to fetch binary from https://binaries.pantsbuild.org/bin/gcc/linux/x86_64/7.3.0/gcc.tar.gz: (\'Connection broken: error("(104, \\\'ECONNRESET\\\')",)\', error("(104, \'ECONNRESET\')",)))', BinaryNotFound(u'Failed to fetch gcc.tar.gz binary from any source: (Failed to fetch binary from https://binaries.pantsbuild.org/bin/gcc/linux/x86_64/7.3.0/gcc.tar.gz: (\'Connection broken: error("(104, \\\'ECONNRESET\\\')",)\', error("(104, \'ECONNRESET\')",)))',))
                     
                     .pants.d/pyprep/sources/2504840b97e890c0e5d6f0cc457ca9cba597537a/pants/engine/scheduler.py:483: ExecutionError

[Eric-Arellano]

Test will be deleted soon in Pants 2.0.