[2020-10-12 21:53:52.255][76901][critical][assert] [source/common/router/upstream_request.cc:444] assert failure: buffered_request_body_.
[2020-10-12 21:53:52.255][76901][critical][backtrace] [bazel-out/darwin-fastbuild/bin/source/server/_virtual_includes/backtrace_lib/server/backtrace.h:104] Caught Abort trap: 6, suspect faulting address 0x7fff6a75533a
[2020-10-12 21:53:52.255][76901][critical][backtrace] [bazel-out/darwin-fastbuild/bin/source/server/_virtual_includes/backtrace_lib/server/backtrace.h:91] Backtrace (use tools/stack_decode.py to get line numbers):
[2020-10-12 21:53:52.255][76901][critical][backtrace] [bazel-out/darwin-fastbuild/bin/source/server/_virtual_includes/backtrace_lib/server/backtrace.h:92] Envoy version: 0/1.17.0-dev/test/DEBUG/BoringSSL
[2020-10-12 21:53:52.280][76901][critical][backtrace] [bazel-out/darwin-fastbuild/bin/source/server/_virtual_includes/backtrace_lib/server/backtrace.h:96] #0: Envoy::SignalAction::sigHandler() [0x108e3d75c]
[2020-10-12 21:53:52.289][76901][critical][backtrace] [bazel-out/darwin-fastbuild/bin/source/server/_virtual_includes/backtrace_lib/server/backtrace.h:96] #1: _sigtramp [0x7fff6a80a5fd]
[2020-10-12 21:53:52.289][76901][critical][backtrace] [bazel-out/darwin-fastbuild/bin/source/server/_virtual_includes/backtrace_lib/server/backtrace.h:98] #2: [0x0]
[2020-10-12 21:53:52.289][76901][critical][backtrace] [bazel-out/darwin-fastbuild/bin/source/server/_virtual_includes/backtrace_lib/server/backtrace.h:96] #3: abort [0x7fff6a6dc808]
[2020-10-12 21:53:52.295][76901][critical][backtrace] [bazel-out/darwin-fastbuild/bin/source/server/_virtual_includes/backtrace_lib/server/backtrace.h:96] #4: Envoy::Router::UpstreamRequest::encodeBodyAndTrailers() [0x106fd5ffb]
[2020-10-12 21:53:52.299][76901][critical][backtrace] [bazel-out/darwin-fastbuild/bin/source/server/_virtual_includes/backtrace_lib/server/backtrace.h:96] #5: Envoy::Router::UpstreamRequest::onPoolReady() [0x106fdf04e]
[2020-10-12 21:53:52.302][76901][critical][backtrace] [bazel-out/darwin-fastbuild/bin/source/server/_virtual_includes/backtrace_lib/server/backtrace.h:96] #6: Envoy::Extensions::Upstreams::Http::Http::HttpConnPool::onPoolReady() [0x104aaceba]
[2020-10-12 21:53:52.307][76901][critical][backtrace] [bazel-out/darwin-fastbuild/bin/source/server/_virtual_includes/backtrace_lib/server/backtrace.h:96] #7: Envoy::Http::HttpConnPoolImplBase::onPoolReady() [0x10429987d]
[2020-10-12 21:53:52.311][76901][critical][backtrace] [bazel-out/darwin-fastbuild/bin/source/server/_virtual_includes/backtrace_lib/server/backtrace.h:96] #8: Envoy::ConnectionPool::ConnPoolImplBase::attachStreamToClient() [0x1042c8d2f]
[2020-10-12 21:53:52.314][76901][critical][backtrace] [bazel-out/darwin-fastbuild/bin/source/server/_virtual_includes/backtrace_lib/server/backtrace.h:96] #9: Envoy::ConnectionPool::ConnPoolImplBase::onUpstreamReady() [0x1042ca099]
[2020-10-12 21:53:52.318][76901][critical][backtrace] [bazel-out/darwin-fastbuild/bin/source/server/_virtual_includes/backtrace_lib/server/backtrace.h:96] #10: Envoy::ConnectionPool::ConnPoolImplBase::onConnectionEvent() [0x1042cd0e5]
[2020-10-12 21:53:52.321][76901][critical][backtrace] [bazel-out/darwin-fastbuild/bin/source/server/_virtual_includes/backtrace_lib/server/backtrace.h:96] #11: Envoy::Http::ActiveClient::onEvent() [0x1041e0279]
[2020-10-12 21:53:52.325][76901][critical][backtrace] [bazel-out/darwin-fastbuild/bin/source/server/_virtual_includes/backtrace_lib/server/backtrace.h:96] #12: Envoy::Network::ConnectionImplBase::raiseConnectionEvent() [0x107c3f3b1]
[2020-10-12 21:53:52.329][76901][critical][backtrace] [bazel-out/darwin-fastbuild/bin/source/server/_virtual_includes/backtrace_lib/server/backtrace.h:96] #13: Envoy::Network::ConnectionImpl::raiseEvent() [0x107bed425]
[2020-10-12 21:53:52.333][76901][critical][backtrace] [bazel-out/darwin-fastbuild/bin/source/server/_virtual_includes/backtrace_lib/server/backtrace.h:96] #14: Envoy::Network::RawBufferSocket::onConnected() [0x108328f02]
[2020-10-12 21:53:52.337][76901][critical][backtrace] [bazel-out/darwin-fastbuild/bin/source/server/_virtual_includes/backtrace_lib/server/backtrace.h:96] #15: Envoy::Network::ConnectionImpl::onWriteReady() [0x107bf5055]
[2020-10-12 21:53:52.341][76901][critical][backtrace] [bazel-out/darwin-fastbuild/bin/source/server/_virtual_includes/backtrace_lib/server/backtrace.h:96] #16: Envoy::Network::ConnectionImpl::onFileEvent() [0x107bf437f]