Update testing.md to reflect changes to cargo new#37368

Merged

bors merged 6 commits intorust-lang:masterfrom trotter:patch-1

Nov 12, 2016

+92-31

Commits on Nov 8, 2016

Update testing.md to reflect changes to cargo new
trotter
committed

Commits on Nov 11, 2016

Ignore tests failing due to lack of fn main
trotter
committed