Julia: 1.0.0-rc1 crashes immediately on "using" instruction (Windows 10)

[StephenVavasis]

c:\Users\vavasis\AppData\Local\Julia-1.0.0-rc1\bin>.\julia.exe
               _
   _       _ _(_)_     |  A fresh approach to technical computing
  (_)     | (_) (_)    |  Documentation: https://docs.julialang.org
   _ _   _| |_  __ _   |  Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 1.0.0-rc1.0 (2018-08-07 16:29 UTC)
 _/ |\__'_|_|_|\__'_|  |  Official http://julialang.org/ release
|__/                   |  x86_64-w64-mingw32

julia> using SparseArrays.spzeros

Please submit a bug report with steps to reproduce this fault, and any error messages that follow (in their entirety). Thanks.
Exception: EXCEPTION_ACCESS_VIOLATION at 0x6b5a76af -- jl_module_using at /home/Administrator/buildbot/worker/package_win64/build/src\module.c:409
in expression starting at no file:0
jl_module_using at /home/Administrator/buildbot/worker/package_win64/build/src\module.c:407
jl_toplevel_eval_flex at /home/Administrator/buildbot/worker/package_win64/build/src\toplevel.c:643
jl_toplevel_eval_in at /home/Administrator/buildbot/worker/package_win64/build/src\builtins.c:622
eval at .\boot.jl:319
jl_apply_generic at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:2182
eval_user_input at C:\cygwin\home\Administrator\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.0\REPL\src\REPL.jl:85
macro expansion at C:\cygwin\home\Administrator\buildbot\worker\package_win64\build\usr\share\julia\stdlib\v1.0\REPL\src\REPL.jl:117 [inlined]
#28 at .\task.jl:259
jl_fptr_trampoline at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:1829
jl_apply_generic at /home/Administrator/buildbot/worker/package_win64/build/src\gf.c:2182
jl_apply at /home/Administrator/buildbot/worker/package_win64/build/src\julia.h:1536 [inlined]
start_task at /home/Administrator/buildbot/worker/package_win64/build/src\task.c:268
Allocations: 928885 (Pool: 928625; Big: 260); GC: 1

c:\Users\vavasis\AppData\Local\Julia-1.0.0-rc1\bin>

[StephenVavasis]

Oops, I used the wrong command. I should have said import, not using. Still, the crash is unexpected.

[JeffBezanson]

Thank you for catching this. Excellent timing :)