update RustC version to 1.51.0
commitb45c66fc57bf8634e3d3f53109ad512cd3bb6274
authorSteve Cao <shiqicao@fb.com>
Mon, 5 Apr 2021 17:11:48 +0000 (5 10:11 -0700)
committerFacebook GitHub Bot <facebook-github-bot@users.noreply.github.com>
Mon, 5 Apr 2021 17:13:27 +0000 (5 10:13 -0700)
treeb787d179bcb4d4abf44eac4816ddc56e616e7cb7
parentaaa960ec5c33a1ada913582d7d56404cfb6713f1
update RustC version to 1.51.0

Summary:
In {D27351012}, oss build failed due to an unstable feature, which becomes to stable in 1.51.

followed {D21337411 (https://github.com/facebook/hhvm/commit/193c1a85b298462904fabc509289a673d6ba5544)}

Reviewed By: fredemmott

Differential Revision: D27532796

fbshipit-source-id: 7956328dc133e43d373e0ef3c7514a419610c30d
third-party/rustc/CMakeLists.txt