This one had some issues.  rust-indoc-0.3 wants rust-indoc-0.3.6
specifically, so I had to downgrade it back to 0.3.6.  Also
proc-macro-hack is needed for building the package, it just isn't listed
with cargo import for some reason.  I made the changes and applied it to
the rust-team branch, and followed up with building rust-indoc-0.3.

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Efraim Flashner   <efraim@flashner.co.il>   אפרים פלשנר
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