1rustc 1.22.0 (9c21f8ff4 2017-11-20) 2binary: rustc 3commit-hash: 9c21f8ff4d80824972910e0c4bbfd1f89620cb0d 4commit-date: 2017-11-20 5host: x86_64-unknown-linux-gnu 6release: 1.22.0 7LLVM version: 4.0 8