add missing case (s390x) to Target parser
@@ -218,6 +218,7 @@ impl<'a> From<&'a str> for Target {
"powerpc-unknown-linux-gnu" => PowerpcUnknownLinuxGnu,
"powerpc64-unknown-linux-gnu" => Powerpc64UnknownLinuxGnu,
"powerpc64le-unknown-linux-gnu" => Powerpc64leUnknownLinuxGnu,
+ "s390x-unknown-linux-gnu" => S390xUnknownLinuxGnu,
"sparc64-unknown-linux-gnu" => Sparc64UnknownLinuxGnu,
"thumbv6m-none-eabi" => Thumbv6mNoneEabi,
"thumbv7em-none-eabi" => Thumbv7emNoneEabi,
