K 10
svn:author
V 6
jbeich
K 8
svn:date
V 27
2016-04-02T14:49:00.270243Z
K 7
svn:log
V 441
lang/rust: enslave lang/rust-nightly

* rust: drop no longer used RUST_SOURCE variable
* rust: apply rust-nightly FIXME comment about stage-qa (strip)
* rust-nightly: properly conflict for install with rust package
* rust-nightly: inherit |make test| support from r401025
* rust-nightly: as DOCSDIR is the same drop unnecessary DOCS option

Approved by:	riggs, dumbbell (maintainers)
Differential Revision:	https://reviews.freebsd.org/D5789

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