K 10
svn:author
V 6
jbeich
K 8
svn:date
V 27
2019-01-04T04:00:39.734452Z
K 7
svn:log
V 295
Allow overriding rust dependency

Add DEFAULT_VERSIONS+=rust=rust-nightly to make.conf(5) if you want to
build consumers using lang/rust-nightly.

Approved by:	rust (tobik)
MFH:		2019Q1 (avoid merge conflicts during www/firefox updates)
Differential Revision:	https://reviews.freebsd.org/D18634

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