#0  Curl_failf (data=0x7fffd8000cb8, 
    fmt=0x7ffff42bf320 "Operation timed out after %ld milliseconds with %ld out of %ld bytes received") at sendf.c:229
#1  0x00007ffff4280f8b in multi_runsingle (multi=0x7656f8, now=..., 
    data=0x7fffd8000cb8) at multi.c:1378
#2  0x00007ffff42836e8 in multi_socket (multi=0x7656f8, checkall=false, 
    s=-1, ev_bitmask=0, running_handles=0x7fffe95f1e78) at multi.c:2643
#3  0x00007ffff4283f36 in curl_multi_socket_action (multi=0x7656f8, s=-1, 
    ev_bitmask=0, running_handles=0x7fffe95f1e78) at multi.c:2750
#4  0x000000000044ed5d in CurlMulti::SocketAction(int, int) ()
#5  0x0000000000467552 in EventLoop::Run() ()
#6  0x00000000004677ae in Thread::ThreadProc(void*) ()
#7  0x00007ffff1bf93b4 in start_thread () from /lib64/libpthread.so.0
#8  0x00007ffff1940a4d in clone () from /lib64/libc.so.6