mruby-http SIGSEGV on h.parse_request

gistfile1.txt

(gdb) r http.rb
Starting program: DEV/mruby-http/example/runner http.rb
warning: .dynamic section for "/lib/libc.so.6" is not at the expected address
warning: difference appears to be caused by prelink, adjusting expectations
[Thread debugging using libthread_db enabled]
http
localhost
8080
/foo
bar=baz

Program received signal SIGSEGV, Segmentation fault.
mrb_run (mrb=0x80ed170, proc=0x80ef00c, self=...) at vm.c:851
851             mrb->stack[0] = result;
(gdb) where
#0  mrb_run (mrb=0x80ed170, proc=0x80ef00c, self=...) at vm.c:851
#1  0x080635f5 in load_exec (mrb=0x80ed170, p=0x8106a60, c=0x8106a18) at ./parse.y:4888
#2  0x08078ff4 in mrb_load_file_cxt (mrb=0x80ed170, f=0x80ed008, c=0x8106a18) at ./parse.y:4896
#3  0x0804b199 in main (argc=0, argv=0x80eeeec) at runner.c:41