Silence a warning
Silence a warning

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