[racket-dev] crash running raco setup with racket 6.1

Building racket 6.1, from racket-6.1-src.tgz, the debian build
calls make install twice,
the first time with PLT_EXTRA="--no-docs --no-zo", and the second time
with PLT_EXTRA="--no-launcher --no-install --no-post-install". This
second (main) call is crashing after some recent change in Debian
unstable (not sure what, but it worked Monday).

At the end you can find a backtrace generated with

% gdb --args racket/racket3m -j -X "/home/bremner/software/debian/racket/debian/tmp/usr/share/racket/collects" -G "/home/bremner/software/debian/racket/debian/tmp/etc/racket"  -N "raco" -l- setup  --no-user -j 1 --no-launcher --no-install --no-post-install

(where DESTDIR=/home/bremner/software/debian/racket/tmp)

This particular backtrace is generated with libcairo2 1.14.0-2
(I don't think the debian revision -2 is likely relevant).

For what it's worth, my debian testing system has cairo 1.12.16-5 on it,
and the build runs fine there.


#0  0x00007ffff713f077 in __GI_raise (sig=sig at entry=6)
    at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
#1  0x00007ffff7140458 in __GI_abort () at abort.c:89
#2  0x00000000006a9f9e in fault_handler (
    sn=<optimized out>, si=0x9ea5b0, ctx=<optimized out>)
    at /home/bremner/software/debian/racket/src/racket/gc2/sighand.c:99
#3  <signal handler called>
#4  0x00007fffe9d63924 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libcairo.so.2
#5  0x00007fffe9da7406 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libcairo.so.2
#6  0x00007fffe9d9952c in ?? ()
   from /usr/lib/x86_64-linux-gnu/libcairo.so.2
#7  0x00007fffe9d99f95 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libcairo.so.2
#8  0x00007fffe9d9abba in ?? ()
   from /usr/lib/x86_64-linux-gnu/libcairo.so.2
#9  0x00007fffe9d55d8f in ?? ()
   from /usr/lib/x86_64-linux-gnu/libcairo.so.2
#10 0x00007fffe9d67062 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libcairo.so.2
#11 0x00007fffe9d9df56 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libcairo.so.2
#12 0x00007fffe9d5dc02 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libcairo.so.2
#13 0x00007fffe9d576e9 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libcairo.so.2
#14 0x00007fffe9d50725 in cairo_stroke ()
   from /usr/lib/x86_64-linux-gnu/libcairo.so.2
#15 0x00007ffff76d4d1e in ffi_call_unix64 ()
   from /usr/lib/x86_64-linux-gnu/libffi.so.6
#16 0x00007ffff76d4788 in ffi_call ()
   from /usr/lib/x86_64-linux-gnu/libffi.so.6
#17 0x000000000069b656 in ffi_do_call (
    argv=0x7fffd0599a68, self=0x7ffff458d004, 
    argc=<optimized out>)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/../../foreign/foreign.c:3459
#18 0x000000000069b973 in ffi_do_call_after_stack_check (
    argc=1, argv=0x7fffd0599a68, self=0x7fffbe99b338)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/../../foreign/foreign.c:3515
#19 0x0000000000469215 in scheme_do_eval (
    obj=<optimized out>, num_rands=1, num_rands at entry=-1, 
    rands=<optimized out>, rands at entry=0x0, 
    get_value=get_value at entry=-1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:2697
#20 0x00000000004690f4 in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=-1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3460
#21 0x00000000004690f4 in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=-1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3460
#22 0x000000000046aaaa in begin0_execute (
    obj=0x7fffecdf6548)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:2257
#23 0x00000000004689a8 in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    rands=<optimized out>, get_value=-1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3759
#24 0x000000000048ebf1 in scheme_apply_chaperone (
    o=0x7fffec08ce50, argc=2, argv=0x7fffd0599c40, 
    auto_val=0x0, checks=85, checks at entry=0)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:3714
#25 0x0000000000468592 in scheme_do_eval (
    obj=<optimized out>, num_rands=2, num_rands at entry=-1, 
    rands=<optimized out>, rands at entry=0x0, 
    get_value=get_value at entry=-1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3087
#26 0x00000000004690f4 in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3460
#27 0x0000000000469cb2 in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=-1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3660
#28 0x00000000004690f4 in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=-1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3460
#29 0x00000000004690f4 in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=-1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3460
#30 0x00000000004690f4 in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    rands=<optimized out>, get_value=<optimized out>)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3460
#31 0x000000000048ebf1 in scheme_apply_chaperone (
    o=0x7fffec062558, argc=1, argv=0x7fffd0599e10, 
    auto_val=0x0, checks=85, checks at entry=0)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:3714
#32 0x0000000000468592 in scheme_do_eval (
    obj=<optimized out>, num_rands=1, num_rands at entry=0, 
    rands=<optimized out>, get_value=get_value at entry=-1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3087
#33 0x000000000048d3a1 in scheme_finish_apply_for_prompt (
    prompt=0x0, _prompt_tag=<optimized out>, 
    proc=0x7fffec062588, argc=argc at entry=0, argv=0x0)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:6216
#34 0x000000000048d556 in scheme_apply_for_prompt (
    prompt=<optimized out>, prompt_tag=<optimized out>, 
    proc=0x7fffec062588, argc=argc at entry=0, 
    argv=<optimized out>)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:6295
#35 0x0000000000492d9f in call_with_prompt (
    in_argc=<optimized out>, in_argv=0x7fffd0599e20)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:6794
#36 0x0000000000469215 in scheme_do_eval (
    obj=<optimized out>, num_rands=1, num_rands at entry=0, 
    rands=<optimized out>, rands at entry=0x0, 
    get_value=get_value at entry=-1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:2697
#37 0x0000000000489729 in call_with_values (argc=2, 
    argv=0x7fffd0599e30)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:3888
#38 0x0000000000469215 in scheme_do_eval (
    obj=<optimized out>, num_rands=2, num_rands at entry=-1, 
    rands=<optimized out>, rands at entry=0x0, 
    get_value=get_value at entry=-1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:2697
#39 0x000000000046aaaa in begin0_execute (
    obj=0x7fffe41918d0)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:2257
#40 0x00000000004689a8 in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3759
#41 0x0000000000469f5a in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3438
#42 0x0000000000469f5a in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=2, rands=<optimized out>, 
    get_value=get_value at entry=-1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3438
#43 0x000000000048d3a1 in scheme_finish_apply_for_prompt (
    prompt=0x0, _prompt_tag=<optimized out>, 
    proc=0x7fffc9db0148, argc=argc at entry=2, 
    argv=0x7fffffff4bf0)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:6216
#44 0x000000000048d556 in scheme_apply_for_prompt (
    prompt=<optimized out>, prompt_tag=<optimized out>, 
    proc=0x7fffc9db0148, argc=argc at entry=2, 
    argv=<optimized out>)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:6295
#45 0x0000000000492d9f in call_with_prompt (
    in_argc=<optimized out>, in_argv=0x7fffd0599ec0)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:6794
#46 0x0000000000469215 in scheme_do_eval (
    obj=<optimized out>, num_rands=5, num_rands at entry=-1, 
    rands=<optimized out>, rands at entry=0x0, 
    get_value=get_value at entry=-1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:2697
#47 0x00000000004690f4 in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    rands=<optimized out>, get_value=get_value at entry=-1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3460
#48 0x000000000047de5a in apply_k ()
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:1453
#49 0x000000000048546a in scheme_top_level_do_worker (
    k=k at entry=0x47dd90 <apply_k>, eb=eb at entry=1, 
    new_thread=new_thread at entry=1, 
    dyn_state=dyn_state at entry=0x0)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:1285
#50 0x0000000000486bad in scheme_apply_thread_thunk (
    rator=<optimized out>)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:1493
#51 0x0000000000675142 in start_child (
    child=<optimized out>, child_eval=<optimized out>)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/thread.c:3084
#52 0x000000000067ecca in make_subprocess (
    child_thunk=0x7fffeeac0948, 
    child_start=0x7fffffff54b0, config=0x7fffeeac0a48, 
    cells=0x7fffeeac0a68, break_cell=0x7fffed34c110, 
    mgr=0x0, normal_kill=1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/thread.c:3176
#53 0x000000000067eeff in scheme_thread_w_details (
    thunk=0x7fffeeac0948, config=0x0, cells=0x0, 
    break_cell=0x0, mgr=0x0, suspend_to_kill=16777472)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/thread.c:3380
#54 0xf9ec250b233b8c00 in ?? ()
#55 0x00007fffffff54f8 in ?? ()
#56 0x00007fffc889a618 in ?? ()
#57 0x0000000000000001 in ?? ()
#58 0x0000000000000005 in ?? ()
#59 0xfffffffffffff400 in ?? ()
#60 0x0000000000000021 in ?? ()
#61 0x00000000ffffffff in ?? ()
#62 0x0000000000469d68 in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3345
#63 0x0000000000469e7d in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3413
#64 0x00000000004693a0 in scheme_do_eval (
    obj=<optimized out>, num_rands=780, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3262
#65 0x0000000000469f5a in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3438
#66 0x0000000000469d68 in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    rands=<optimized out>, get_value=<optimized out>)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3345
#67 0x000000000046746e in define_execute_with_dynamic_state
    (vec=0x7fffbfd257a8, delta=1, defmacro=0, rp=0x0, 
    dm_env=0x0, dyn_state=0x0)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:1935
#68 0x0000000000467cf4 in define_values_execute (
    data=<optimized out>)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:2079
#69 0x0000000000468d71 in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    rands=<optimized out>, get_value=<optimized out>)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3724
#70 0xfffffffffffff400 in ?? ()
#71 0xfffffffffffff400 in ?? ()
#72 0x0000000000626783 in scheme_uncopy_stack (
    ok=<optimized out>, b=0x7fffee42e860, 
    prev=prev at entry=0x7fffffff6360)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/setjmpup.c:337
#73 0x0000000000626783 in scheme_uncopy_stack (
    ok=<optimized out>, b=0x7fffee42e860, 
    prev=prev at entry=0x7fffffff6a00)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/setjmpup.c:337
#74 0x0000000000626783 in scheme_uncopy_stack (
    ok=<optimized out>, b=0x7fffee42e860, 
    prev=prev at entry=0x7fffffff70a0)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/setjmpup.c:337
#75 0x0000000000626783 in scheme_uncopy_stack (
    ok=<optimized out>, b=0x7fffee42e860, 
    prev=prev at entry=0x7fffffff7740)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/setjmpup.c:337
#76 0x0000000000626783 in scheme_uncopy_stack (
    ok=<optimized out>, b=0x7fffee42e860, 
    prev=prev at entry=0x7fffffff7de0)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/setjmpup.c:337
#77 0x0000000000626783 in scheme_uncopy_stack (
    ok=<optimized out>, b=0x7fffee42e860, 
    prev=prev at entry=0x7fffffff8490)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/setjmpup.c:337
#78 0x0000000000626b8a in scheme_longjmpup (
    b=0x7fffee42e860)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/setjmpup.c:621
#79 0x0000000000670ea1 in do_swap_thread ()
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/thread.c:2793
#80 0x0000000000674b88 in select_thread ()
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/thread.c:2872
#81 0x000000000067c707 in scheme_weak_suspend_thread (
    r=0x7fffeca93928)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/thread.c:5396
#82 0x0000000000625486 in scheme_wait_semas_chs (
    n=n at entry=1, o=o at entry=0x7fffffff8ce0, 
    just_try=just_try at entry=0, syncing=syncing at entry=0x0)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/sema.c:789
#83 0x0000000000624d05 in scheme_wait_sema (
    o=<optimized out>, just_try=just_try at entry=0)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/sema.c:953
#84 0x0000000000671086 in will_executor_go (
    argc=<optimized out>, argv=0x7ffff03b1f20)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/thread.c:8412
#85 0x0000000000469215 in scheme_do_eval (
    obj=<optimized out>, num_rands=1, num_rands at entry=-1, 
    rands=<optimized out>, rands at entry=0x0, 
    get_value=get_value at entry=-1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:2697
#86 0x00000000004690f4 in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=-1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3460
#87 0x000000000046aaaa in begin0_execute (
    obj=0x7fffed4ade10)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:2257
#88 0x00000000004689a8 in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=0, rands=<optimized out>, 
    get_value=get_value at entry=-1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3759
#89 0x000000000048d3a1 in scheme_finish_apply_for_prompt (
    prompt=0x0, _prompt_tag=<optimized out>, 
    proc=0x7fffeca93ec8, argc=argc at entry=0, argv=0x0)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:6216
#90 0x000000000048d556 in scheme_apply_for_prompt (
    prompt=<optimized out>, prompt_tag=<optimized out>, 
    proc=0x7fffeca93ec8, argc=argc at entry=0, 
    argv=<optimized out>)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:6295
#91 0x0000000000492d9f in call_with_prompt (
    in_argc=<optimized out>, in_argv=0x7ffff03b1f48)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:6794
#92 0x0000000000469215 in scheme_do_eval (
    obj=<optimized out>, num_rands=1, num_rands at entry=-1, 
    rands=<optimized out>, rands at entry=0x0, 
    get_value=get_value at entry=-1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:2697
#93 0x00000000004690f4 in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    rands=<optimized out>, get_value=get_value at entry=-1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3460
#94 0x000000000047de5a in apply_k ()
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:1453
#95 0x000000000048546a in scheme_top_level_do_worker (
    k=k at entry=0x47dd90 <apply_k>, eb=eb at entry=1, 
    new_thread=new_thread at entry=1, 
    dyn_state=dyn_state at entry=0x0)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:1285
#96 0x0000000000486bad in scheme_apply_thread_thunk (
    rator=<optimized out>)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:1493
#97 0x0000000000675142 in start_child (
    child=<optimized out>, child_eval=<optimized out>)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/thread.c:3084
#98 0x000000000067ecca in make_subprocess (
    child_thunk=0x7fffeca97598, 
    child_start=0x7fffffff9c40, config=0x7fffe5d28cb8, 
    cells=0x7fffeca93e10, break_cell=0x7fffed34c110, 
    mgr=0x7fffca3f77b8, normal_kill=1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/thread.c:3176
#99 0x000000000067eeff in scheme_thread_w_details (
    thunk=0x7fffeca97598, config=0x7fffe5d28cb8, 
    cells=0x7fffeca93e10, break_cell=0x0, 
    mgr=0x7fffca3f77b8, suspend_to_kill=16777472)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/thread.c:3380
#100 0x0000000000469f5a in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3438
#101 0x0000000000469f5a in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3438
#102 0x0000000000469f5a in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3438
#103 0x0000000000469f5a in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3438
#104 0x0000000000469f5a in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3438
#105 0x0000000000469f5a in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3438
#106 0x0000000000469f5a in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3438
#107 0x0000000000469f5a in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3438
#108 0x0000000000469f5a in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3438
#109 0x0000000000469f5a in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3438
#110 0x0000000000469f5a in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3438
#111 0x0000000000469f5a in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3438
#112 0x0000000000469f5a in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3438
#113 0x0000000000469f5a in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3438
#114 0x0000000000469f5a in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3438
#115 0x0000000000469f5a in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3438
#116 0x0000000000469f5a in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3438
#117 0x0000000000469f5a in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3438
#118 0x0000000000469f5a in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3438
#119 0x0000000000469cb2 in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=2, rands=<optimized out>, 
    get_value=get_value at entry=-1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3660
#120 0x000000000048d3a1 in scheme_finish_apply_for_prompt (
    prompt=0x0, _prompt_tag=<optimized out>, 
    proc=0x7fffc9db0148, argc=argc at entry=2, 
    argv=0x7fffffffb310)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:6216
#121 0x000000000048d556 in scheme_apply_for_prompt (
    prompt=<optimized out>, prompt_tag=<optimized out>, 
    proc=0x7fffc9db0148, argc=argc at entry=2, 
    argv=<optimized out>)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:6295
#122 0x0000000000492d9f in call_with_prompt (
    in_argc=<optimized out>, in_argv=0x7ffff6321d90)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:6794
#123 0x0000000000469215 in scheme_do_eval (
    obj=<optimized out>, num_rands=5, num_rands at entry=-1, 
    rands=<optimized out>, rands at entry=0x0, 
    get_value=get_value at entry=-1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:2697
#124 0x00000000004690f4 in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=-1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3460
#125 0x000000000046ad8c in apply_values_execute (
    data=0x7fffc9d95c48)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:2139
#126 0x00000000004688a1 in scheme_do_eval (
    obj=<optimized out>, num_rands=<optimized out>, 
    num_rands at entry=-1, rands=<optimized out>, 
    rands at entry=0x0, get_value=get_value at entry=-1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3783
#127 0x0000000000546e13 in body_one_expr (
    prefix_plus_expr=0x7fffda41dbc8, argc=<optimized out>, 
    argv=<optimized out>)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/module.c:5771
#128 0x0000000000467f0e in scheme_do_eval (
    obj=<optimized out>, num_rands=num_rands at entry=0, 
    rands=<optimized out>, get_value=get_value at entry=-1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3108
#129 0x000000000048d3a1 in scheme_finish_apply_for_prompt (
    prompt=0x0, _prompt_tag=<optimized out>, 
    proc=0x7fffec6e17c0, argc=argc at entry=0, argv=0x0)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:6216
#130 0x000000000048d556 in scheme_apply_for_prompt (
    prompt=<optimized out>, prompt_tag=<optimized out>, 
    proc=0x7fffec6e17c0, argc=argc at entry=0, 
    argv=<optimized out>)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:6295
#131 0x0000000000492d9f in call_with_prompt (
    in_argc=<optimized out>, in_argv=0x7fffffffbe20)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:6794
#132 0x0000000000469215 in scheme_do_eval (
    obj=<optimized out>, num_rands=num_rands at entry=3, 
    rands=<optimized out>, rands at entry=0x7fffffffbe20, 
    get_value=<optimized out>)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:2697
#133 0x0000000000486936 in do_call_with_prompt (
    f=<optimized out>, data=<optimized out>, multi=1, 
    top_level=0)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:7020
#134 0x000000000055643d in scheme_module_run_finish (
    menv=0x7fffc9d94c10, env=0x7fffe5d28e58)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/module.c:5868
#135 0x000000000052f2c7 in scheme_module_run_start (
    menv=0x7fffc9d94c10, env=0x7fffe5d28e58, 
    name=0x7fffda41dbe8)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/jitstack.c:672
#136 0x0000000000542d4a in eval_module_body (
    menv=0x7fffc9d94c10, env=0x7fffe5d28e58)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/module.c:5760
#137 0x000000000043b2b1 in do_start_module (
    menv=<optimized out>, env=<optimized out>, restart=0, 
    m=<optimized out>, m=<optimized out>)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/module.c:5541
#138 0x000000000055008b in start_module (m=0x7fffc9d94d28, 
    env=0x7fffe5d28e58, restart=restart at entry=0, 
    syntax_idx=0x7fffc9d76b58, eval_exp=0, 
    eval_run=<optimized out>, base_phase=0, 
    cycle_list=0x98c908 <scheme_null>, not_new=0)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/module.c:5638
#139 0x000000000055f87b in _dynamic_require (
    argc=<optimized out>, argv=0x7ffff6321f50, 
    env=0x7fffe5d28e58, get_bucket=0, 
    phase=<optimized out>, indirect_ok=<optimized out>, 
    fail_with_error=1, position=<optimized out>, 
    mod_phase=0)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/module.c:1372
#140 0x0000000000560935 in scheme_dynamic_require (argc=2, 
    argv=0x7ffff6321f50)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/module.c:1438
#141 0x0000000000469215 in scheme_do_eval (
    obj=<optimized out>, num_rands=2, num_rands at entry=-1, 
    rands=<optimized out>, rands at entry=0x0, 
    get_value=get_value at entry=-1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:2697
#142 0x0000000000546e13 in body_one_expr (
    prefix_plus_expr=0x7fffe6088e28, argc=<optimized out>, 
    argv=<optimized out>)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/module.c:5771
#143 0x0000000000467f0e in scheme_do_eval (
    obj=<optimized out>, num_rands=num_rands at entry=0, 
    rands=<optimized out>, get_value=get_value at entry=-1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:3108
#144 0x000000000048d3a1 in scheme_finish_apply_for_prompt (
    prompt=0x0, _prompt_tag=<optimized out>, 
    proc=0x7fffc9d76b90, argc=argc at entry=0, argv=0x0)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:6216
#145 0x000000000048d556 in scheme_apply_for_prompt (
    prompt=<optimized out>, prompt_tag=<optimized out>, 
    proc=0x7fffc9d76b90, argc=argc at entry=0, 
    argv=<optimized out>)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:6295
#146 0x0000000000492d9f in call_with_prompt (
    in_argc=<optimized out>, in_argv=0x7fffffffcda0)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:6794
#147 0x0000000000469215 in scheme_do_eval (
    obj=<optimized out>, num_rands=num_rands at entry=3, 
    rands=<optimized out>, rands at entry=0x7fffffffcda0, 
    get_value=<optimized out>)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:2697
#148 0x0000000000486936 in do_call_with_prompt (
    f=<optimized out>, data=<optimized out>, multi=1, 
    top_level=0)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:7020
#149 0x000000000055643d in scheme_module_run_finish (
    menv=0x7fffed350e28, env=0x7fffe5d28e58)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/module.c:5868
#150 0x000000000052f2c7 in scheme_module_run_start (
    menv=0x7fffed350e28, env=0x7fffe5d28e58, 
    name=0x7fffed1392c8)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/jitstack.c:672
#151 0x0000000000542d4a in eval_module_body (
    menv=0x7fffed350e28, env=0x7fffe5d28e58)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/module.c:5760
#152 0x000000000043b2b1 in do_start_module (
    menv=<optimized out>, env=<optimized out>, restart=0, 
    m=<optimized out>, m=<optimized out>)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/module.c:5541
#153 0x000000000055008b in start_module (m=0x7fffed350f40, 
    env=0x7fffe5d28e58, restart=restart at entry=0, 
    syntax_idx=0x7fffe5d297f0, eval_exp=eval_exp at entry=-1, 
    eval_run=eval_run at entry=1, base_phase=0, 
    cycle_list=0x98c908 <scheme_null>, not_new=0)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/module.c:5638
#154 0x000000000055d874 in parse_requires (
    form=0x7fffe5d297f0, at_phase=0, 
    base_modidx=0x98af50 <scheme_false>, 
    main_env=0x7fffe5d28e58, rn_set=0x7fffed351058, 
    post_ex_rn_set=post_ex_rn_set at entry=0x0, ck=0x0, 
    data=0x0, unpack_kern=1, copy_vars=0, 
    can_save_marshal=0, eval_exp=-1, eval_run=1, 
    all_simple=0x0, modidx_cache=0x0, submodule_names=0x0, 
    non_phaseless=0x0, redef_modname=0x0, for_m=0x0)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/module.c:12429
#155 0x000000000055f40e in do_namespace_require (
    env=0x7fffe5d28e58, argv=0x7fffffffdbd0, copy=0, 
    etonly=0, argc=<optimized out>)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/module.c:1465
#156 0x0000000000469215 in scheme_do_eval (
    obj=<optimized out>, num_rands=1, 
    rands=<optimized out>, get_value=get_value at entry=1)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/eval.c:2697
#157 0x000000000047de2d in apply_k ()
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:1455
#158 0x000000000048546a in scheme_top_level_do_worker (
    k=k at entry=0x47dd90 <apply_k>, eb=eb at entry=1, 
    new_thread=new_thread at entry=0, 
    dyn_state=dyn_state at entry=0x0)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:1285
#159 0x00000000004867d5 in scheme_top_level_do (eb=1, 
    k=0x47dd90 <apply_k>)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:1173
#160 _apply (eb=1, multi=0, 
    rands=rands at entry=0x7fffffffd650, 
    num_rands=num_rands at entry=1, rator=<optimized out>)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:1468
#161 scheme_apply (rator=<optimized out>, 
    num_rands=num_rands at entry=1, 
    rands=rands at entry=0x7fffffffdbd0)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/fun.c:1474
#162 0x000000000043e650 in finish_cmd_line_run (
    fa=0x7fffecf001b0, repl=0x43ce40 <do_scheme_rep>)
    at /home/bremner/software/debian/racket/src/racket/gc2/../cmdline.inc:440
#163 0x000000000043eec5 in cont_run (f=<optimized out>)
    at /home/bremner/software/debian/racket/src/racket/gc2/../main.c:465
#164 0x0000000000440113 in run_from_cmd_line (
    argc=<optimized out>, argc at entry=16, 
    _argv=0x7fffffffe428, cont_run=0x43eec0 <cont_run>, 
    mk_basic_env=<optimized out>)
    at /home/bremner/software/debian/racket/src/racket/gc2/../cmdline.inc:1571
#165 0x0000000000440aae in main_after_stack (
    data=<optimized out>)
    at /home/bremner/software/debian/racket/src/racket/gc2/../main.c:450
#166 0x0000000000441595 in do_main_stack_setup (
    no_auto_statics=no_auto_statics at entry=1, 
    _main=_main at entry=0x440a00 <main_after_stack>, 
    data=data at entry=0x7fffffffe320)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/salloc.c:198
#167 0x0000000000441665 in scheme_main_stack_setup (
    no_auto_statics=no_auto_statics at entry=1, 
    _main=_main at entry=0x440a00 <main_after_stack>, 
    data=data at entry=0x7fffffffe320)
    at /home/bremner/software/debian/racket/src/racket/gc2/../src/salloc.c:310
#168 0x000000000043cd1e in main_after_dlls (
    argv=<optimized out>, argc=<optimized out>)
    at /home/bremner/software/debian/racket/src/racket/gc2/../main.c:381
#169 main (argc=<optimized out>, argv=<optimized out>)
    at /home/bremner/software/debian/racket/src/racket/gc2/../main.c:341