Segmentation fault: repr::write_repr(io::stdout(), &(0_i32, &42));

[ben0x539]

I get a segmentation fault when trying to use repr::write_repr on a tuple of an i32 and a pointer of some sort.

I'm on linux x86_64, rustc from incoming at f96a2a2.

Here is a sample stack trace where the pointer is an &int, but it also fails with with strings and other boxes.

#0  0x00007ffff7a44ce0 in repr::__extensions__::meth_4972::visit_int::_bb314cd7b2d5487c::_04 () from /home/ben/local/lib/libcore-c3ca5d77d81b46c1-0.4.so
#1  0x0000000000403cf8 in glue_visit_1770 ()
#2  0x00007ffff7aadee0 in repr::__extensions__::meth_12173::visit_ptr_contents::_c16ac36288f708a::_04 ()
   from /home/ben/local/lib/libcore-c3ca5d77d81b46c1-0.4.so
#3  0x00007ffff7a45a9d in repr::__extensions__::meth_5018::visit_rptr::_c16ac36288f708a::_04 () from /home/ben/local/lib/libcore-c3ca5d77d81b46c1-0.4.so
#4  0x0000000000403ca7 in glue_visit_1766 ()
#5  0x00007ffff7a46868 in repr::__extensions__::meth_5048::visit_tup_field::_c16ac36288f708a::_04 () from /home/ben/local/lib/libcore-c3ca5d77d81b46c1-0.4.so
#6  0x0000000000403b94 in glue_visit_1758 ()
#7  0x00000000004050eb in intrinsic::rusti::visit_tydesc_1872::_dd21ad46516abf9c::_00 ()
#8  0x0000000000403666 in repr::write_repr_1718::_18cbcd4791f8cd::_00 ()
#9  0x0000000000405668 in __morestack ()
#10 0x00000000004032f9 in main::_461897b8e816aa::_00 ()
#11 0x000000000040332e in _rust_main ()
#12 0x00007ffff77bb644 in task_start_wrapper (a=0x60bff0)
    at /home/ben/code/repos/rust/src/rt/rust_task.cpp:150
#13 0x0000000000000000 in ?? ()

[ben0x539]

I can't reproduce this with current incoming anymore.