make x86_64-apple-darwin/stage1/bin/rustpkg is broken

[catamorphism]

Normally, I build stage1 rustpkg to save time. With 833ed21 I get:

compile_and_link: x86_64-apple-darwin/stage0/lib/rustc/x86_64-apple-darwin/lib/librustpkg.dylib
time: 0.043 s   parsing
time: 0.061 s   expansion
time: 0.006 s   configuration
time: 0.006 s   maybe building test harness
time: 0.003 s   intrinsic injection
time: 0.005 s   core injection
time: 0.008 s   ast indexing
time: 0.228 s   external crate/lib resolution
error: duplicate entry for `const`
error: duplicate entry for `copy`
error: duplicate entry for `owned`
error: duplicate entry for `drop`
error: duplicate entry for `add`
error: duplicate entry for `sub`
error: duplicate entry for `mul`
error: duplicate entry for `div`
error: duplicate entry for `rem`
error: duplicate entry for `neg`
error: duplicate entry for `not`
error: duplicate entry for `bitxor`
error: duplicate entry for `bitand`
error: duplicate entry for `bitor`
error: duplicate entry for `shl`
error: duplicate entry for `shr`
error: duplicate entry for `index`
error: duplicate entry for `eq`
error: duplicate entry for `ord`
error: duplicate entry for `str_eq`
error: duplicate entry for `uniq_str_eq`
error: duplicate entry for `annihilate`
error: duplicate entry for `log_type`
error: duplicate entry for `fail_`
error: duplicate entry for `fail_bounds_check`
error: duplicate entry for `exchange_malloc`
error: duplicate entry for `exchange_free`
error: duplicate entry for `malloc`
error: duplicate entry for `free`
error: duplicate entry for `borrow_as_imm`
error: duplicate entry for `borrow_as_mut`
error: duplicate entry for `return_to_mut`
error: duplicate entry for `check_not_borrowed`
error: duplicate entry for `strdup_uniq`
error: duplicate entry for `record_borrow`
error: duplicate entry for `unrecord_borrow`
error: duplicate entry for `start`

[msullivan]

Does this still happen? I couldn't reproduce the analogous problem on my linux machine.

[pnkfelix]

part of #8058

[pnkfelix]

@catamorphism I am not sure it will actually help, but could you include your configure invocation and make invocation? It might help others attempting to reproduce the problem.

[pnkfelix]

1. I am not able to reproduce on my Mac. Stage1 rustpkg builds just fine.
2. I do have problems testing it, which at first I had noted here, but now I'm putting in a separate bug: rustpkg hangs during check-stage1 on Mac #8102

[catamorphism]

This should be fixed now; I'll build locally just to be sure.

[catamorphism]

Works for me now.