Auto merge of #1317 - alex:patch-1, r=gnzlbg
Auto merge of #1317 - alex:patch-1, r=gnzlbg

Remove duplicate target from ci/build.sh

I'm almost certain this is not intentional

rust-lang-nursery/libc,rust-lang-nursery/libc,rust-lang/libc,rust-lang/libc,rust-lang-nursery/libc,rust-lang/libc