1rustc 1.40.0 (73528e339 2019-12-16) 2binary: rustc 3commit-hash: 73528e339aae0f17a15ffa49a8ac608f50c6cf14 4commit-date: 2019-12-16 5host: x86_64-unknown-linux-gnu 6release: 1.40.0 7LLVM version: 9.0 8