rust/rust-toolchain

[toolchain]
channel = "nightly-2021-07-19"
components = ["llvm-tools-preview", "rustc-dev", "rust-src"]
Merge commit '4911ab124c481430672a3833b37075e6435ec34d' into clippyup 2020-12-20 10:19:49 -06:00			`[toolchain]`
Merge commit '4c41a222ca5d1325fb4b6709395bd06e766cc042' into clippyup 2021-07-19 04:52:05 -05:00			`channel = "nightly-2021-07-19"`
Merge commit '70c0f90453701e7d6d9b99aaa1fc6a765937b736' into clippyup 2021-02-11 08:04:38 -06:00			`components = ["llvm-tools-preview", "rustc-dev", "rust-src"]`