weird compilation failure..

 crystal/fork_on_oom  % cr fork_and_stack.cr
Invalid memory access (signal 11) at address 0x1dffffd0
[0x43cebf] __crystal_sigfault_handler +63
[0x7f0fcb4fdfe0] ???
[0x7f0fccdb319f] _ZN4llvm13GetReturnInfoEPNS_4TypeENS_12AttributeSetERNS_15SmallVectorImplINS_3ISD9OutputArgEEERKNS_14TargetLoweringERKNS_10DataLayoutE +735
[0x7f0fcce48dcd] _ZN4llvm20FunctionLoweringInfo3setERKNS_8FunctionERNS_15MachineFunctionEPNS_12SelectionDAGE +269
[0x7f0fccf6ac2e] _ZN4llvm16SelectionDAGISel20runOnMachineFunctionERNS_15MachineFunctionE +926
[0x7f0fce1a1e74] ???
[0x7f0fccc46841] _ZN4llvm19MachineFunctionPass13runOnFunctionERNS_8FunctionE +145
[0x7f0fccac6b32] _ZN4llvm13FPPassManager13runOnFunctionERNS_8FunctionE +642
[0x7f0fccac6bd3] _ZN4llvm13FPPassManager11runOnModuleERNS_6ModuleE +51
[0x7f0fccac7584] _ZN4llvm6legacy15PassManagerImpl3runERNS_6ModuleE +772
[0x7f0fcd964c45] ???
[0x7f0fcd964f64] LLVMTargetMachineEmitToFile +244
[0x13d26ca] ???
[0x13d6d53] ???
[0x411668] ???
[0x0] ???
Invalid memory access (signal 11) at address 0x3bffffd0
[0x43cebf] __crystal_sigfault_handler +63
[0x7f0fcb4fdfe0] ???
[0x7f0fccdb319f] _ZN4llvm13GetReturnInfoEPNS_4TypeENS_12AttributeSetERNS_15SmallVectorImplINS_3ISD9OutputArgEEERKNS_14TargetLoweringERKNS_10DataLayoutE +735
[0x7f0fcce3b6eb] _ZN4llvm8FastISel11lowerCallToERNS0_16CallLoweringInfoE +363
[0x7f0fcce3d14f] _ZN4llvm8FastISel9lowerCallEPKNS_8CallInstE +1391
[0x7f0fcce40b84] _ZN4llvm8FastISel10selectCallEPKNS_4UserE +100
[0x7f0fcce3df8d] _ZN4llvm8FastISel14selectOperatorEPKNS_4UserEj +413
[0x7f0fcce43333] _ZN4llvm8FastISel17selectInstructionEPKNS_11InstructionE +883
[0x7f0fccf68e68] _ZN4llvm16SelectionDAGISel20SelectAllBasicBlocksERKNS_8FunctionE +696
[0x7f0fccf6ad49] _ZN4llvm16SelectionDAGISel20runOnMachineFunctionERNS_15MachineFunctionE +1209
[0x7f0fce1a1e74] ???
[0x7f0fccc46841] _ZN4llvm19MachineFunctionPass13runOnFunctionERNS_8FunctionE +145
[0x7f0fccac6b32] _ZN4llvm13FPPassManager13runOnFunctionERNS_8FunctionE +642
[0x7f0fccac6bd3] _ZN4llvm13FPPassManager11runOnModuleERNS_6ModuleE +51
[0x7f0fccac7584] _ZN4llvm6legacy15PassManagerImpl3runERNS_6ModuleE +772
[0x7f0fcd964c45] ???
[0x7f0fcd964f64] LLVMTargetMachineEmitToFile +244
[0x13d26ca] ???
[0x13d6d53] ???
[0x411668] ???
[0x0] ???
_main.o: file not recognized: File truncated
collect2: error: ld returned 1 exit status
Error: execution of command failed with code: 1: `cc -o "/home/lesell_b/.cache/crystal/crystal-run-fork_and_stack.tmp" "${@}"  -rdynamic  -lpcre -lgc -lpthread /usr/lib/crystal/ext/libcrystal.a -levent -lrt -ldl -L/usr/lib -L/usr/local/lib`