rust/rust-toolchain

[toolchain]
channel = "nightly-2021-05-20"
components = ["llvm-tools-preview", "rustc-dev", "rust-src"]
Merge commit '4911ab124c481430672a3833b37075e6435ec34d' into clippyup 2020-12-20 10:19:49 -06:00			`[toolchain]`
Bump nightly version -> 2021-05-20 2021-05-20 05:06:22 -05:00			`channel = "nightly-2021-05-20"`
Merge commit '70c0f90453701e7d6d9b99aaa1fc6a765937b736' into clippyup 2021-02-11 08:04:38 -06:00			`components = ["llvm-tools-preview", "rustc-dev", "rust-src"]`