Don't use sudo in the travis
Don't use sudo in the travis

tempbottle/serde,sidred10/serde,thorbenk/serde,csmulhern/serde,Ticki/serde,infinityb/serde,oli-obk/rust-serde,skade/serde,serde-rs/serde,JohnHeitmann/serde,eefriedman/serde,jmesmon/serde,erickt/serde,3Hren/serde