Set explicit required components for rustup. (cherrypick of #11422 and #11420) #11423
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Problem
The default components installed for a
rustup
toolchain are not guaranteed to includecargo
,clippy
, etc.Solution
Expand our
rust-toolchain
file to explicitly list the components that we need. We do not pinrustup
for now, as it generally changes backwards-compatibly. We can revisit that in the future if it continues to change in breaking ways.[ci skip-build-wheels]