boom crash

gistfile1.txt

(gdb) run /Users/burg/repos/servo/src/rust-core-foundation/core_foundation.rc -o librustcorefoundation.dummy
Starting program: /usr/local/bin/rustc /Users/burg/repos/servo/src/rust-core-foundation/core_foundation.rc -o librustcorefoundation.dummy
Reading symbols for shared libraries .....+................................................................. done
Assertion failed: (S->getType()->isPointerTy() && "Invalid cast"), function CreatePointerCast, file /Users/burg/repos/rust/src/llvm/lib/VMCore/Instructions.cpp, line 2383.

Program received signal SIGABRT, Aborted.
[Switching to process 80740 thread 0x1d03]
0x00007fff8e233ce2 in __pthread_kill ()
(gdb) bt
#0  0x00007fff8e233ce2 in __pthread_kill ()
#1  0x00007fff8a7ec7d2 in pthread_kill ()
#2  0x00000001019cd5d6 in abort ()
#3  0x00000001019cd628 in __assert_rtn ()
#4  0x000000010195392c in llvm::CastInst::CreatePointerCast ()
#5  0x00000001018c82e2 in llvm::IRBuilder<true, llvm::ConstantFolder, llvm::IRBuilderDefaultInserter<true> >::CreatePointerCast ()
#6  0x00000001018c2638 in LLVMBuildPointerCast ()
#7  0x0000000100d011d2 in LLVMBuildPointerCast__c_stack_shim ()
#8  0x000000010109c50e in __morestack () at rust_task.cpp:1327
#9  0x00000001010857a5 in rust_task::call_on_c_stack (this=0x1024010a0, args=0x1030c31e8, fn_ptr=0x1030c31e8) at rust_task.h:478
#10 0x00000001010863f9 in upcall_call_shim_on_c_stack (args=0x1030c31e8, fn_ptr=0x100d01190) at rust_upcall.cpp:51
#11 0x00000001007d3aad in middle::trans::build::PointerCast::_56ff51de0f7dedd::_04 ()
#12 0x0000000100806670 in middle::trans::callee::trans_call_inner::anon ()
#13 0x00000001007d32ed in middle::trans::base::with_scope::_06f4644b073fdf3::_04 ()
#14 0x00000001007fc0b4 in middle::trans::callee::trans_call_inner::_96cd685ce4967883::_04 ()
#15 0x00000001007fbf41 in middle::trans::callee::trans_call::_eec6ef8f9c8d4dc7::_04 ()
#16 0x0000000100811a6f in middle::trans::expr::trans_rvalue_dps_unadjusted::_1bc04771d3ad65e3::_04 ()
#17 0x0000000100d08f10 in __morestack ()
Previous frame inner to this frame (gdb could not unwind past this frame)
(gdb)