debug: << '0'
debug: << '\r'

Program received signal SIGSEGV, Segmentation fault.
0x000acf4c in camlLwt__repr_rec_1132 () at src/core/lwt.ml:173
173     src/core/lwt.ml: No such file or directory.
(gdb) bt
#0  0x000acf4c in camlLwt__repr_rec_1132 () at src/core/lwt.ml:173
#1  0x000ad6a0 in camlLwt__connect_1265 () at src/core/lwt.ml:428
#2  0x000ad6a0 in camlLwt__connect_1265 () at src/core/lwt.ml:428