1rustc 1.49.0 (e1884a8e3 2020-12-29) 2binary: rustc 3commit-hash: e1884a8e3c3e813aada8254edfa120e85bf5ffca 4commit-date: 2020-12-29 5host: x86_64-unknown-linux-gnu 6release: 1.49.0 7