Joshua Nelson 26fb3fa737 Use rustup in CI to automatically determine the toolchain version needed ... This also removes the (now unused) `RUSTC_RELEASE` and `RUSTC_RELEASE_CHANNEL` variables.		2021-04-21 21:17:36 -05:00
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workflows	Use rustup in CI to automatically determine the toolchain version needed	2021-04-21 21:17:36 -05:00