Compile error

Using /usr/local/bin/llvm-config [version=5.0.1]
./bin/crystal build --release  -o .build/crystal src/compiler/crystal.cr -D without_openssl -D without_zlib
Invalid memory access (signal 11) at address 0x7d697e8df5c
[0x7d36a415306] __crystal_sigfault_handler +8343622
[0x7d369c202ee] __crystal_sigfault_handler +46
[0x7d36a4175e3] sigfault_handler +35
gmake: *** [Makefile:120: .build/crystal] Error 11

GDB

This GDB was configured as "amd64-unknown-openbsd6.3"...(no debugging symbols found)                                                              

(gdb) run build --release -o .build/crystal src/compiler/crystal.cr -D without_openssl -D without_zlib -D i_know_what_im_doing                    

Starting program: /usr/local/bin/crystal build --release -o .build/crystal src/compiler/crystal.cr -D without_openssl -D without_zlib -D i_know_what_im_doing
[New process 49287]

Program received signal SIGSEGV, Segmentation fault.
0x00001738d450b146 in *Fiber::switch_stacks<Pointer(Pointer(Void)), Pointer(Pointer(Void))>:Nil () from /usr/local/bin/crystal                    
Current language:  auto; currently minimal
(gdb) bt
#0  0x00001738d450b146 in *Fiber::switch_stacks<Pointer(Pointer(Void)), Pointer(Pointer(Void))>:Nil () from /usr/local/bin/crystal                
#1  0x00001738d4536c35 in __crystal_sigfault_handler () from /usr/local/bin/crystal                                                               
#2  0x00001738d450476f in __crystal_main () from /usr/local/bin/crystal
#3  0x00001738d4509224 in main () from /usr/local/bin/crystal