Correctly handle ending the pipe subprocess read

                        asio::streambuf buffer;

                        boost::regex line_matcher{"\\r|\\n"};

                        std::size_t read_size = 0;

                        boost::system::error_code err_code;

                        do {

                            // Read from the pipe into a buffer

                            read_size = asio::async_read_until(std_pipe, buffer, line_matcher, yield);

                            read_size = asio::async_read_until(std_pipe, buffer, line_matcher, yield[err_code]);

                            // Write the buffer to our socket

                            messenger.async_send(buffer, yield);

                        } while (read_size > 0);

                        } while (read_size > 0 && err_code == boost::system::errc::success);

                        // Get the return value from the build subprocess

                        logger::write(socket, "Waiting on build process to exit");