lang/rust: update to 0.9

• stagiy
• mark as broken on 10+
• update to 0.9
• add new options
• add LICENSE

PR: ports/185868
PR: ports/185865
Submitted by: Oleksii Tsai <oleksii.tsai@googlemail.com>
Approved by: Jyun-Yan You <jyyou@cs.nctu.edu.tw> (maintainer)